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Designing a Software Specification 1/91 Dr. Dobbs Journal, USA: JAN91: PORTING UNIX TO THE 386: DESIGNING THE SOFTWARE SPECIFICATION, William Jolitz and Lynne Jolitz. In this first installment of a multipart series, the design specification for 386BSD, Berkeley UNIX for the 80386, is discussed. Contains: Getting Started: References, Equipment, and Software, Development of the 386BSD Specification, The Definition of the 386BSD Specification, Conflicts in Priorities, 386BSD Port Goals: A Practical Approach, Microprocessor and System Specification Issues, 386 Memory Management Vitals, Segmentation and 386BSD, Kernel Linear Address Space Overhead, Virtual Address Space Layout, Per-Process Data Structures, 386 Virtual Memory Address Translation Mechanism, User to Kernel Communication Primitives, Berkeley UNIX Virtual Memory System Strategy, Structure of Per-Process Data (u.), Process Context Description, Page Fault and Segmentation Fault Mechanism, Other Processor Faults, Microprocessor Idiosyncrasies, System Call Interface, System Specific (ISA) Issues, Physical Memory Map, ISA Device Controllers, ISA Device Auto Configuration, Interrupt Priority Level Management, Bootstrap Operation, Summary: Where is 386BSD Now?, and Suggested Readings. (Part of the series PORTING UNIX TO THE 386: A PRACTICAL APPROACH, see also Three Initial PC Utilities)
Three Initial PC Utilities 2/91 Dr. Dobbs Journal, USA: FEB91: PORTING UNIX TO THE 386: THREE INITIAL PC UTILITIES, William Jolitz and Lynne Jolitz. Utilities to let you execute GCC-compiled programs in protected mode from MS-DOS and copy files to a shared portion of disk so MS-DOS and UNIX can exchange information. Contains: The Purpose of Our PC Utilities, The First PC Utility: boot.exe, Unix Kernel Load Program, The GCC Executable Format, Consistency Checks, GATE A20, Entering Protected Mode, The Second PC Utility: cpfs.exe, The Third PC Utility: cpsw.exe, Where We Go From Here, and The 386BSD Project and Berkeley UNIX . (Part of the series PORTING UNIX TO THE 386: A PRACTICAL APPROACH, see also Designing a Software Specification and The Standalone System)
The Standalone System 3/91 Dr. Dobbs Journal, USA: The Standalone System, William Jolitz and Lynne Jolitz. Using the protected mode program loader, a minimal 80386 protected mode standalone C programming environment for operating systems kernel development is created. (See also Three Initial PC Utilities and Copyrights, Copyleft, and Competitive Advantage)
Copyrights, Copyleft, and Competitive Advantage 4/91 Dr. Dobbs Journal, USA: Copyrights, Copyleft, and Competitive Advantage, Lynne Greer Jolitz . An overview and analysis of the effects and trends towards the use of copyrights, Free Software Foundation (FSF) “copylefts”, and the impact on American competitive advantage.
Zwei Seiten der Medaille 4/91 UNIX Magazin, Germany: Zwei Seiten der Medaille, William Jolitz and Lynne Jolitz. Die Uniforum-Konferenz gehört zu den wichtigsten Veranstaltungen, die der UNIX-Kalender im Jahr aufweist. Grund genug, diese Veranstaltung wie in den Vorjahren für Sie zu besuchen, um wichtige Neuerungen und Trends aufzuspüren. Doch der Golfkrieg hat auch hier seine vergleichsweise bescheidenen Eindrücke hinterlassen; die geplanten Reisen mussten abgesagt werden. Mit Bill Jolitz konnte ein UNIX-Insider gefunden werden, der uns seine Eindrücke zukommen liess.
Language Tools Cross Support 4/91 Dr. Dobbs Journal, USA: Language Tools Cross Support, William Jolitz and Lynne Jolitz. Developing the inital cross-tool utilities to bootstrap 386BSD.
The Initial Root Filesystem 5/91 Dr. Dobbs Journal, USA: The Initial Root Filesystem, William Jolitz and Lynne Jolitz. The development of the initial root filesystem required for the 386BSD operating system kernel.
Portierung von BSD-UNIX auf den 80386. Heimliche Liebe 6/91 UNIX Magazin, Germany: Portierung von BSD-UNIX auf den 80386. Heimliche Liebe, William Jolitz and Lynne Jolitz. Bislang galt die Intel-Plattform als Hochburg von AT&T System V, während vor allem der technische Workstationmarkt nach wie vor mit BSD-UNIX arbeitet. Kein Wunder, dass die BSD-FAns auf einen 80386-Port warteten. Unsere 386BSD-Serie beschreibt im Detail den Port und gibt wichtige Einblicke in BSD.
Research and the Commercial Sector: Where Does BSD Fit In? 6/91 Dr. Dobbs Journal, USA: Research and the Commercial Sector: Where Does BSD Fit In?, William Jolitz and Lynne Jolitz. A discussion of the various demands placed on research and commercial operating systems, and how they differ.
Steighilfe 7/91 UNIX Magazin, Germany: Steighilfe, William Jolitz and Lynne Jolitz. Der BSD-Kernel steht nicht gleich zu Beginn eines Ports in voller Blüte auf der neuen Hardwareplattform zur Verfügung. Bis man soweit ist, kann man sich auch die Funktionen eines bereits lauffähigen Systems, hier is es MS-DOS einschliesslich seiner Applikationen, zunutze machen.
A Stripped-Down Kernel 7/91 Dr. Dobbs Journal, USA: A Stripped-Down Kernel, William Jolitz and Lynne Jolitz. The 386BSD basic kernel, incorporating a unique recursive paging feature that leverages resources and reduces complexity.
Systemverwaltung durch Tabellen 8/91 UNIX Magazin, Germany: Systemverwaltung durch Tabellen, William Jolitz and Lynne Jolitz. Eine der wichtigsten Hürden, die bei der Portierung von BSD auf den 386 zu überwinden ist: die fehlerfreie Initialisierung der Systemtabellen im Protected Mode. Überraschungen sind zu jeder Zeit angesagt.
The Basic Kernel 8/91 Dr. Dobbs Journal, USA: The Basic Kernel, William Jolitz and Lynne Jolitz. Initialization of the 386BSD kernel services and data structures.
Sicher bewegen auf fremdem Terrain 9/91 UNIX Magazin, Germany: Sicher bewegen auf fremdem Terrain, William Jolitz and Lynne Jolitz. Die richtige Auswahl der Entwicklungs-hardware und -software kann während der eigentlichen Portierung viel Zeit sparen. Der Cross-Support offenbart auch so genügend Hindernisse, die zu überwinden sind.
Multiprogramming and Multiprocessing I 9/91 Dr. Dobbs Journal, USA: Multiprogramming and Multiprocessing I, William Jolitz and Lynne Jolitz. An overview of the multiprogramming paradigm in 386BSD. Conventions, definitions, and organization of multiprogramming.
Damit die Fehlersuche nicht zum Hürdenspringen wird 10/91 UNIX Magazin, Germany: Damit die Fehlersuche nicht zum Hürdenspringen wird, William Jolitz and Lynne Jolitz. Bei der Portierung eines Paketes wie BSD-UNIX muss man als Programierer verschiedene Verfahren zur Fehlersuche kombiniert einsetzen. Erst die Kombinartion führt zum Ziel, denn schliesslich pochen auch die Tools auf ihr Recht auf Fehler.
Multiprogramming and Multiprocessing II 10/91 Dr. Dobbs Journal, USA: Multiprogramming and Multiprocessing II, William Jolitz and Lynne Jolitz. How multiprogramming is achieved via multitasking. A discussion of the process. Alternative implementations and trade-offs. A reflection on why it has been so difficult to add multiprogramming to non-UNIX operating systems such as MS-DOS.
Alles in eine Schublade 11/91 UNIX Magazin, Germany: Alles in eine Schublade, William Jolitz and Lynne Jolitz.
Device Autoconfiguration 11/91 Dr. Dobbs Journal, USA: Device Autoconfiguration, William Jolitz and Lynne Jolitz. How 386BSD discovers hardware devices that are present and configures itself for operation with those devices.
Feuer und Wasser 12/91 UNIX Magazin, Germany: Feuer und Wasser, William Jolitz and Lynne Jolitz.
Rekursives Speicher-Mapping 1/92 UNIX Magazin, Germany: Rekursives Speicher-Mapping, William Jolitz and Lynne Jolitz. Die Speicherverwaltung gehört zu den Kernstücken jeder UNIX-implementation. Mit dem rekursiven Paging haben sich die Autoren ein neues Verfahren ausgedacht, weiches nicht nur auf dem 80386 eine verbesserte Performance ermöglicht.
Tanz auf dem Eis 2/92 UNIX Magazin, Germany: Tanz auf dem Eis, William Jolitz and Lynne Jolitz. Gerade die ersten wackeligen Schritte des Kernels in seiner unvoliständigen Systemumgebung sind die kritischen. Diese Folge beschreibt neben dem rekusiven Paging, wie man sich auf dem brüchigen Eis bewegt.
Unix Device Drivers I 2/92 Dr. Dobbs Journal, USA: Unix Device Drivers I, William Jolitz and Lynne Jolitz. The structure of 386BSD device drivers, interfaces to the operating system, and minimal device drivers for the console, disk drive and scheduling clock of the PC.
Aus Hänschen wird Hans 3/92 UNIX Magazin, Germany: Aus Hänschen wird Hans, William Jolitz and Lynne Jolitz. Auch ein so umfangreiches Betreibssystem wie UNIX fängt mal kelin an. Gemeint ist die Bootphase, in der sich der Riese aus kleinen Teilen seibst zusammensetzt. Wer wollte nich schon einmal wissen, weiche Strategie hierbei verfolgt wird, um aus dem grossen Sortiment der Tabellen, Pages, Layer und Funktionen ein funktionierendes Ganzes zu machen.
Unix Device Drivers II 3/92 Dr. Dobbs Journal, USA: Unix Device Drivers II, William Jolitz and Lynne Jolitz. Interfaces to the operating system. Entering, exiting and masking processor interrupts. (See also Unix Device Drivers I andUnix Device Drivers III)
Das Geheimnis des Multiprogramming 4/92 UNIX Magazin, Germany: Das Geheimnis des Multiprogramming, William Jolitz and Lynne Jolitz. Einer der wichtigsten Unterschiede von Unix gegenüber den Singeltasking Systemen wie MS-DOS ist der von Anfang an einbezogene Faktor des Multiprogramming. Erst hiermit können auf einen einzigen Prozessor das Gefühl und die vielfältigen Möglichkeiten der Parallelverarbeitung nicht nur versprochen, sondern auch gehalten werden.
Unix Device Drivers III 4/92 Dr. Dobbs Journal, USA: Unix Device Drivers III, William Jolitz and Lynne Jolitz. Completion of basic 386BSD device drivers.
Missing Pieces I 5/92 Dr. Dobbs Journal, USA: Missing Pieces I, William Jolitz and Lynne Jolitz. Finishing the NET/2 release of Berkeley UNIX to obtain a complete, unencumbered system for the 386 PC. Describes the methodology and implementation of the remaining facilities necessary to generate a working operating system for the PC. (See also Unix Device Drivers III and Missing Pieces II)
Magie des Kernels 6/92 UNIX Magazin, Germany: Magie des Kernels, William Jolitz and Lynne Jolitz. Als Anwender eines Multitasking-Betriebssystems nutzt man die praktischen Möglichkeiten, ohne zu wissen, welche fundamentalen Dienstleistungen innerhalb des Kernels dafür verantwortlich sind.
Missing Pieces II 6/92 Dr. Dobbs Journal, USA: Missing Pieces II, William Jolitz and Lynne Jolitz. Finishing the NET/2 release of Berkeley UNIX to obtain a complete, unencumbered system for the 386 PC. Describes the methodology and implementation of the remaining facilities necessary to generate a working operating system for the PC.
Erkenne Dich Selbst 7/92 UNIX Magazin, Germany: Erkenne Dich Selbst, William Jolitz and Lynne Jolitz. Kenner der BSD-Systeme Wissen die Systemmeldungen während des Bootvorganges zu entziffern. In dieser Folge wird das zugrundeliegende Schema der Autokonfiguration der Gerätetreiber näher beschrieben. Vorteil dieser Technik is, dass erst beim Booten die aktuellen Daten der angeschlossenen Devices in den Kernel übernommen werden. Die Zeit der Betriebssystem-Patches sollte damit vorbei sein.
The Final Step: Running Light with 386bsd 7/92 Dr. Dobbs Journal, USA: The Final Step: Running Light with 386BSD, William Jolitz and Lynne Jolitz. Overview of the impact of Release 0.0 on the BSD community. Installation procedures for and highlights of Release 0.1. Final installment of series.
High-Speed Networking 8/92 Dr. Dobbs Journal, USA: High-Speed Networking, William F. (Bill) Jolitz. Even though network systems with data transfer rates in the gigabits-per-second range are just around the corner, today's software architectures won't necessarily scale well to higher rates. The problems and promises of high-speed networking are examined, focussing on header prediction and forward-error correction.
Das Beste aus ISA machen 9/92 UNIX Magazin, Germany: Das Beste aus ISA machen, William Jolitz and Lynne Jolitz. Die Autokonfiguration bietet ein hohes Mass an Flexibilität bezüglich der Auswahl peripherer Einheiten. Doch so gut das Betriebssystem hierzu vorbereitet sein mag, so abhängig ist dieses doch von der zugrundeliegenden Hardware. Die betagte, aber weitverbreitete ISA-Architektur des PC/AT-Bus bereitet bei der Portierung denn auch oft Kopfschmerzen.
Coming to Grips with the Information Age 9/92 Dr. Dobb’s Journal, USA: Programmer’s Bookshelf: Coming to Grips with the Information Age, William F. (Bill) Jolitz. William Jolitz writes on the seperated evolution of the Internet apart from the world's largest connected network - the telephone system, as he reviews Global Telecommunications: Layered Networks, Layered Services by Robert Heldman.
Das Beste aus ISA machen 9/92 UNIX Magazin, Germany: Das Beste aus ISA machen, William Jolitz and Lynne Jolitz. Die Autokonfiguration bietet ein hohes Mass an Flexibilität bezüglich der Auswahl peripherer Einheiten. Doch so gut das Betriebssystem hierzu vorbereitet sein mag, so abhängig ist dieses doch von der zugrundeliegenden Hardware. Die betagte, aber weitverbreitete ISA-Architektur des PC/AT-Bus bereitet bei der Portierung denn auch oft Kopfschmerzen.
Treiberlatein 10/92 UNIX Magazin, Germany: Treiberlatein, William Jolitz and Lynne Jolitz. Damit ein Betriebssystem das Laufen lernt, müssen zumindestens gewisse Grundbedürfnisse der Schnittstelle zur Hardware befriedigt werden. Diese Aufgabe erledingen die Device-Treiber, deren grundsätzliche Arbeitsweise und Umfeld in dieser Folge näher beschrieben wird.
Inside the ISO-9660 Filesystem Format 12/92 Dr. Dobbs Journal, USA: Inside the ISO-9660 Filesystem Format, William Jolitz and Lynne Jolitz. For delivering large amounts of data, CD-ROMS give you the biggest bang for the buck. The ISO-9660 filesystem format is discussed. Example utilities which allow a person to decode a CD-ROM and view a file are also presented.
Einladung erforderlich 12/92 UNIX Magazin, Germany: Einladung erforderlich, William Jolitz and Lynne Jolitz. Für die Ebene der Device-Treiber ist das Interrupthandling fundamental. Die Initialisierung der Interrupt-Tabellen sowie die Organisation der Treiber richtet sich bei 386-Systemen natürlich sehr eng nach den spezifischen Gegebenheiten der Hardware. Wie die Interrupts beim PC funktionieren, wird in dieser Folge beschrieben.
Extending Standards for CD-ROM 6/93 Dr. Dobbs Journal, USA: Extending Standards for CD-ROM, Lynne Greer Jolitz . Although ISO-compliant CD-ROMs are interchangeable and usable on any type of system, the minimalism that made the ISO-9660 standard successful is sometimes too minimal. Consequently, the Rock Ridge Group and others have developed extensions to give new life to CD-ROMs.
Under Lock and Key 9/93 Dr. Dobb’s Journal, USA: Programmer’s Bookshelf: Under Lock and Key, Lynne Greer Jolitz . While you can’t keep network systems and data under lock and key, there are security techniques you can still employ. Lynne examines the approaches presented in UNIX System Security and UNIX Installation, Security, and Integrity.
Very High Speed Networks: HiPPI and SIGNA Winter 1994 Dr. Dobbs Journal Information Highway Special Issue, USA: Very High Speed Networks: HiPPI and SIGNA, William Jolitz and Lynne Jolitz. Very high-speed networking is the key to rapidly and economically delivering large amounts of information.
Polymorphic Protocols 1/94 Dr. Dobbs Journal, USA: Polymorphic Protocols, William F. (Bill) Jolitz. The Internet's fixed address space is being put to the test by dramatic growth in the number of Internet users. Polymorphic protocols may ultimately be the solution to the address-space problem and similar network limitations.
Developer's Bookshelf: Gigabit Networking 7/94 Dr. Dobb's Developer Update, USA: Developer's Bookshelf: Gigabit Networking, William F. (Bill) Jolitz. A discussion of the state-of-the-art on gigabit networking.
Op Ed: Inside 'Intel Inside' 2/95 Dr. Dobb's Developer Update, USA: Op Ed: Inside 'Intel Inside', William F. (Bill) Jolitz. Reflections on Intel's Pentium debacle and how such problems should be handled in the future.
Security and the INTERNET 3/95 Dr. Dobb's Developer Update, USA: Security and the INTERNET, William Jolitz and Lynne Jolitz. A detailed analysis of the technical flaws in the TCP/IP implementations which allowed intrusion by a cracker over several months and new approaches to correct them.
Role-Based Network Security 5/95 Dr. Dobb’s Journal, USA: Role-Based Network Security, William Jolitz and Lynne Jolitz. Network level security is usually very costly, but through the use of role-based security, PC network administration can be reduced to a simple level without loss of integrity.
Perspectives on Computer Security 8/95 Dr. Dobb’s Journal, USA: Programmer’s Bookshelf: Perspectives on Computer Security, Lynne Greer Jolitz . When you get on the net, who can you trust? Lynne examines several new books that address this question: Network Security: Private Communications in a Public World, by Charlie Kaufman, Radia Perlman, and Michael Speciner; E-Mail Security, by Bruce Schneier; Network Security, by Steven Shaffer and Alan Simon; and Network Security: How to Plan for It and Achieve It, by Richard H. Baker. [Embedded in "Le Monde En Tique" ]
Book Review: POSIX.4 Programming 8/95 Dr. Dobb's Developer Update, USA: Book Review: POSIX.4 Programming, Lynne Greer Jolitz . Contrasts traditional operating systems techniques with real-time demands.
DNS on the Hot Seat November 2002. Byte.com, USA. DNS on the Hot Seat, Lynne Greer Jolitz . Distributed DOS attacks on the Internet's root servers can grind Web traffic to a halt. Is it time to find a replacement for DNS? Feature article.
DDOS: Just a Matter of Resource February 2003. Byte.com, USA. DDOS: Just a Matter of Resource, Lynne Greer Jolitz . Why are we so vulnerable still to distributed denial-of-service attacks? Because the Internet has no policy for monitoring service and isolating misbehaving network elements. Special Feature.
Web Services and DataCenter Environments
April 2003. Dr. Dobbs Journal, USA. Web Services and DataCenter Environments, William F. (Bill) Jolitz. Forget your cellphones and wireless PDAs. Web services can be used even more effectively in Internet datacenters to solve client communication errors and other such problems.
Paving the Way for ‘Systers’ September 15, 2003. San Francisco Chronicle, Technology and Business Section page E1. USA. Paving the Way for ‘Systers’, Lynne Greer Jolitz . On Sept. 9, Anita Borg, a well-known computer scientist and champion for the advancement of women in the technology industry who died in April, was eulogized by colleagues at Stanford University's Memorial Auditorium. Here are the thoughts of Lynne Greer Jolitz , who has spearheaded several Silicon Valley Startups. Article also posted on SF Gate, among the top five newspaper-affiliated web sites in the U.S., with 4.9 million users and 58 million page views per month.
Memories and Cookies September 2003. Byte.com, USA. Memories and Cookies, Lynne Greer Jolitz . The optimism and untethered ambition of the dot-com boom may have vanished from the face of the Internet, but it lingers on in cookie files. Special Feature.
Buffer, Buffer, Where is the Buffer? October 2004. Byte.com, USA. Buffer, Buffer, Where is the Buffer?, Lynne Greer Jolitz .With so much of modern technology concerned with buffers, buffering, and the dreaded buffer overflow, Lynne asks: Can we build a better buffer?
The Problems of Personalization November 2004. Byte.com, USA. The Problems of Personalization, Lynne Greer Jolitz .Online retailers are crowding onto the "personalization" bandwagon—with humorous and occasionally insulting results.
Free Culture And the Internet
September 2004. Dr. Dobbs Journal, USA. Free Culture And the Internet, Lynne Greer Jolitz . Lynne Jolitz reviews the book Free Culture by Lawrence Lessig. See also Free Culture and the Internet
The Year Ahead January 2005. Byte.com, USA. The Year Ahead, Lynne Greer Jolitz .Lynne predicts that 2005 will bring us more spam, less security, and maybe some shake-ups in search—but each of these fields holds opportunity for technical innovation.
Search Engine Quirks and Search Engine Jerks May 2005. Byte.com, USA. Search Engine Quirks and Search Engine Jerks, Lynne Greer Jolitz . Search engines can seem almost human in their obsessions, preferences, and desires. But it's the real humans who can use search techniques to threaten a site or a business.
Misplaced software priorities
June 2005. C|net News.com.com, USA. Misplaced software priorities, William F. (Bill) Jolitz. We are in danger of losing out in the best and most interesting part of the software market. (See at "Misplaced software priorities | Perspectives | CNET News.com")
Opinion: Getting "Beyond Fear": A Security Expert's Prescription for A Safer World June 23, 2005. TechWeb / Security Pipeline, USA. Opinion: Getting "Beyond Fear": A Security Expert's Prescription for A Safer World , Lynne Greer Jolitz . Open source pioneer Lynne Jolitz turns a skeptical eye toward airport security, wondering if all the pat-downs and X-rays are good policy. While politicians and the public debate whether the searches are too intrusive, Lynne says that's the wrong question. The real question is whether the searches are cost-effective. Are they the best way we can be spending our security effort and money? (See at "Security Pipeline | Opinion: Getting "Beyond Fear": A Security Expert's Prescription for A Safer World")
Innovation After Grokster August 2005. Byte.com, USA. Innovation After Grokster, Lynne Greer Jolitz . Will the Supreme Court's Grokster decision throttle innovation in video search, podcasting, and other emerging technologies?.
Geek of the Week Award Oracle E-Business Network, Geek of the Week Award, Lynne Greer Jolitz (January 2001) for 386bsd (1991-1995) and SiliconTCP (1997-2001) technologies.
2003 Alumni Award
Physics Department, University of California at Berkeley, 2003 Alumni Award, Lynne Greer Jolitz
(October 2003) for her work in behalf of the physics alumni association and outreach.
The Symmetric 375 and Symmetrix Owner's Manual The Symmetric 375 and Symmetrix Owner's Manual, Lynne Greer Jolitz . Publisher: Symmetric Computer Systems, San Jose, CA. (1984, 1987). 260 pp. Documents the system administration, basic use of languages and utilities, and the hardware, including circuitry of the Symmetric 375 computer and its Berkeley Unix derived Symmetrix operating system. See also "Writing the Owner's Manual for the Symmetric 375 Computer system".
The 386BSD Release 1.0 CDROM Liner Notes 11/94 Dr. Dobbs Journal, USA: The 386BSD Release 1.0 CDROM Liner Notes, William Jolitz and Lynne Jolitz.(15 pages). We are pleased to present the release of our first official 386BSD Reference CD-ROM. This single CD-ROM contains the most up-to-date work in our continuing operating systems and networking research project including articles appearing in Dr. Dobb's Journal, select annotations, system and kernel source code, and executable binaries for select configurations. This CD-ROM is intended as a research and educational reference used to explore state-of the-art paradigms, choices, and trade-offs, as well as examine testbed implementations of these design choices. In addition, the collection of resources, articles, and other reference materials on this CD creates an informational programming resource that can be referred to again and again.. See also "The Fun with 386BSD".
Operating System Source Code Secrets Volume 1: The Basic Kernel
Operating System Source Code Secrets Volume 1: The Basic Kernel, William Jolitz and Lynne Jolitz. In this multi-volume series, William and Lynne examine the anatomy of an operating system. The heart of an operating system is the basic kernel. Like a human heart, the basic kernel provides a complex operating system a fundamental means to distribute resources to all other subsystems in order for them to function independently. Without the basic kernel, no other portion of the operating system can live. Among the most crucial of functions are: dynamic configuration; bootstrap and kernel program loading; memory allocation and management; process credentials and privileges; machine dependent elements (X86); system call, interrupt and exception handling; context switching; thread creation and destruction; process multiplexing; files and file descriptors; and UNIX and BSD API’s. In addition to its historical origins, the modularity and scalability of the complete kernel is discussed and how its future evolution impacts clustering, security, extensibility, and performance. Future scheduled volumes in this series will examine the virtual memory subsystem, the TCP/IP networking protocols, and Berkeley/WINSOCK sockets. Publisher: Peer-to-Peer Communications, Charlottesville, Virginia (1996). 530 pp. See also review
386bsd カーネルソースコードの秘密 (Japanese)
386BSD カーネルソースコードの秘密William Frederick Jolitz/ Lynne Greer Jolitz 。
386BSDソースコードシリーズ。PCUNIXの先駆け386BSDのカーネルソースコードを開発者自ら詳細に解説しています。近代オペレーティングシステムの実装技術を余す所なく収録しています。アスキ。発売日1998/12/24。(588ページ) 。 ASCII, [Room KNEO（吉川邦夫の部屋）]
386BSD from the Inside-Out 386BSD from the Inside-Out, William Jolitz and Lynne Jolitz. Describes in detail the internal structure of the 386BSD operating system done by the authors as an example of operating system design methodology and implementation choice, thus reconciling the implementation-specific practice discussed in the Operating Systems Source Code Secrets series with formal operating systems design. The unique approach of this work is to proceed from fundamental structure of the kernel and its interfaces to the specific subsystems present within the operating system. This inside-out progression illuminates alternative choices for structure in a historical light by detailing how the decisions made in the past affect the current technology. The focus of this book is to provide an exploded view of a modern computer operating system and why it is composed the way it is, so that students of the field can grasp the concepts and methodologies chosen.
Operating System Source Code Secrets Volume 2: The Virtual Memory System
Operating System Source Code Secrets Volume 2: The Virtual Memory System, William Jolitz and Lynne Jolitz. This multivolume series examines the anatomy of an operating system. The brain of an operating system is the virtual memory system. Like a human brain, the virtual memory system is the means through which temporary and permanent memory is stored and accessed. Temporary memory is used as a workspace to assemble a new item before it is stored into permanent memory. Among those most fundamental of functions are: management of kernel and program virtual address spaces (creation, replication, modification, and destruction); management of store backing an address space (naming, protection, sharing, and inheritance of memory contents); persistent and temporary memory; machine dependent (X86) memory management unit control; copy-on-write semantics; main store and secondary store management; page replacement; memory mapped I/O; address space fault handling; demand loading from secondary store; lazy versus industrious evaluation; and UNIX and BSD API’s for address space control. The virtual memory module is not only a key subsystem of the operating system kernel but is itself composed of layers and levels of abstraction. These layers are discussed in terms of future evolution to support the needs of clustering, security, extensibility, and performance.
386BSD R1.0 Reference CD-ROM: Modular Kernel Design Modular Kernel Design, William Jolitz and Lynne Jolitz. Starting with Release 1.0, the 386BSD kernel was radically changed. Utilizing the lessons learned in modular design, the kernel is transformed into independent modules that may be included into the kernel program simply by adding a line into a parameterized makefile describing a system (ex: odysseus.mk). This is novel work done for 386BSD Release 1.0.
386BSD R1.0 Reference CD-ROM: So You Want to Write a UNIX Paper So You Want to Write a UNIX Paper, William Jolitz and Lynne Jolitz. Essay on the trials and tribulations of submitting novel research papers.
386BSD R1.0 Reference CD-ROM: CPU Kernel Facilities CPU Kernel Facilities (i386/cpu.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code specific to the central processor unit (CPU) which implements at the bottom level of abstraction a variety of kernel facilities.
386BSD R1.0 Reference CD-ROM: Process Creation Process Creation (kern/fork.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements the mechanism for replicating a process or thread, the basic concurrent objects in a POSIX-based system created explicitly by other user processes.
386BSD R1.0 Reference CD-ROM: Process Termination Process Termination (kern/exit.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements the mechanism for terminating a process or thread. POSIX processes may be terminated explicitly by a function call from the process being terminated itself, or implicitly, either as a result of a processor exception or of a signal sent by another process.
386BSD R1.0 Reference CD-ROM: Process Exceptions via Signals Process Exceptions via Signals (kern/sig.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements the POSIX signal mechanism for passing software interrupts to processes.
386BSD R1.0 Reference CD-ROM: Process Protection Process Protection (kern/cred.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code responsible for implementing the process protection mechanism.
386BSD R1.0 Reference CD-ROM: Process Privileges Process Privileges (kern/priv.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which provides the fine-grain definition for the use of privileges by other portions of the kernel code. It is in essence the gateway through which a privileged operation is permitted to be performed. This is novel work done for 386BSD Release 1.0.
386BSD R1.0 Reference CD-ROM: Executable File Format Emulator Executable File Format Emulator (kern/execve.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements the execution of program machine instruction binary files. It corresponds to the top layer of abstraction of a POSIX 1003.1-based system, by implementing the entire execve() functionality of that standard as a single system call. This is novel work done for 386BSD Release 1.0.
386BSD R1.0 Reference CD-ROM: File Descriptors File Descriptors (kern/descrip.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements the file and file descriptor mechanisms. It is through this mechanism that low level file-like objects are attached to the Posix program interface in the system calls which in turn implement all of the Posix functions used with files.
386BSD R1.0 Reference CD-ROM: Kernel Memory Allocator Kernel Memory Allocator (kern/malloc.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements the primary dynamic memory allocator of the kernel. It is composed of three functions: malloc(), free(), and kmeminit().
386BSD R1.0 Reference CD-ROM: Configuration in Kernel Design Configuration in Kernel Design (kern/config.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which configures the software modules of the kernel and reconciles a shared configuration file with the configuration scripts in every module. The configuration scripts themselves allow for symbolic reconfiguration of the kernel without altering its contents. This file also contains the device-independent device interfaces used by the kernel exclusively to access devices. This is novel work done for 386BSD Release 1.0.
386BSD R1.0 Reference CD-ROM: Process Scheduling Process Scheduling (kern/synch.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements the blocking, unblocking, and scheduling mechanisms used in a multiprogramming system.
386BSD R1.0 Reference CD-ROM: Memory Maps Memory Maps (vm/map.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements a series of routines for managing map entries and performing map operations on the map entries as needed for the rest of the virtual memory system, and is analogous to a virtual address database of sorts.
386BSD R1.0 Reference CD-ROM: Memory Objects Memory Objects (vm/object.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements management of memory objects for the virtual memory system.
386BSD R1.0 Reference CD-ROM: Paging Mechanism Paging Mechanism (vm/page.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code used to maintain the logical page abstraction vm_page.
386BSD R1.0 Reference CD-ROM: Page Reclamation Page Reclamation (vm/pageout.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements the page reclamation daemon (the paging replacement function).
386BSD R1.0 Reference CD-ROM: Fault Handling Fault Handling ( vm/fault.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements the virtual memory system's address space fault handler mechanism, interpreting both hardware and software faults on a portion of the address space.
386BSD R1.0 Reference CD-ROM: Filesystem Cache Management Filesystem Cache Management (fs/bio.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code used to implement the cache management of independent filesystems. It corresponds to the middle layer of abstraction of a filesystem which maintains the exchange of file data and metadata contents read or written to the external storage comprising the physical file.
386BSD R1.0 Reference CD-ROM: Filesystem Lookup Filesystem Lookup (fs/lookup.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which is the initial point for transactions involving the filesystem. This file is responsible for turning file path names into the vnodes referenced by the rest of the virtual filesystem.
386BSD R1.0 Reference CD-ROM: Assembly Entry and Primitives Assembly Entry and Primitives (i386/locore.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD file containing the initial assembly language that expands the core machine dependencies of the architecture of 386/486/Pentium processors. This is novel work done for 386BSD Release 1.0.
386BSD: Die unendliche Geschichte 8/92 UNIX Magazin, Germany: 386BSD: Die unendliche Geschichte (by Jürgen Fey, Editor). Siet über einem Jahr können Sie die 386BSD-Serie im UNIX Magazin verfolgen. Sietdem Release 0.0 über FTP verfügbar ist, hat sich das Interesse noch weiter verstärkt und von der Theorie in die Praxis verlagert. Wir haven Bill Jolitz im Berkeley-Nachbarort Oakland besucht und ihn nach den BSD-Hintergründen, seiner Philosophie und zukünftigen Entwicklungen befragt.
Faktor 10: Stauende; IP-Netze bis zu zehnmal schneller durch SiliconTCP 7/98 Gateway, Germany: Faktor 10: Stauende; IP-Netze bis zu zehnmal schneller durch SiliconTCP (by Jürgen Fey, Editor). Das Internet droht am eigenen Erfolg zu ersticken, denn allzu oft sind die Pipelines verstopft. SiliconTCP, ein einfaches und dennoch wirkungsvolles Verfahren könnte viele Probleme lösen und die Performance verzehnfachen.
The Unknown Hackers 5/00 Salon.Com USA.: The Unknown Hackers (by Rachel Chalmers). Bill and Lynne Jolitz may be the most famous programmers you've never heard of. Not many Linux-come-latelies know this, but Linux was actually the second open-source Unix-based operating system for personal computers to be distributed over the Internet. The first was 386BSD, which was put together by an extraordinary couple named Bill and Lynne Jolitz. In a 1993 interview in Meta magazine, Linus Torvalds himself name-checked their O.S. "If 386BSD had been available when I started on Linux," he said, "Linux would probably never have happened." (See also "The Fun with 386BSD")
Fixing the Bandwidth Bottleneck January 2001 (Air Date). Fixing the Bandwidth Bottleneck, Jeremy Burton, Host. Oracle E-Business Network. Lynne Jolitz, the co-creator of 386BSD, the first Berkeley Unix open source operating system, and SiliconTCP, the first ballistic protocol processing mechanism for wire-speed Internet transactions, contrasts past software mechanisms in operating systems with future hardware approaches.
DSL, Bandwidth and IPv6: Where are We Heading? April 2001 (Air Date). DSL, Bandwidth and IPv6: Where are We Heading?, John Dvorak, Host. Real Computing. Understanding the 2001 business fall-out in the DSL broadband area. A critical examination of IPv6. Finally, a look at what’s in it for the consumer.
Open Systems Networking With TCP/IP Open Systems Networking With TCP/IP, William Jolitz and Lynne Jolitz. A comprehensive course which details the TCP/IP protocol suite, the Internet CORE protocols and the basics of Internet architecture, including the Domain Name Server. It also examines the underlying concepts and principles of TCP/IP. Examples, network management, the integration of applications protocols into a useful network, and network operations are also discussed.
ISDN Networking Technology: A Strategic Overview ISDN Networking Technology: A Strategic Overview, William Jolitz and Lynne Jolitz. An introduction to the Integrated Services Digital Network (ISDN) is provided with a tour of motivations, standards, terminology, functional blocks, system equipment, link access protocols, signaling protocols and standard services. Specific case examples on the interoperability between current networking technology and ISDN are developed and examined. In addition, a number of possible ISDN applications are explored along with the current limitations and frustrations of the ISDN standards, the current schedule of events of ISDN service accessibility, and the near-term changes expected within the world of ISDN.
The Internet and ISDN The Internet and ISDN, William F. (Bill) Jolitz. This intensive short course reviewed ISDN basics, IP growth, ISDN service introductions, and existing ad hoc implementations. ISDN is studied as a catalyst for campus Internet service, using the University of California at Berkeley as a case example.
Apple's Next Step is a Software Gamble December 23, 1996. Apple's Next Step is a Software Gamble, Lee Gomes, The Wall Street Journal, (page B1) , Steve Jobs has persuaded Apple Computer Inc. to spend $400 million, mostly in cash, to buy his Next Software Inc., convincing Apple executives that it can fill a technological hole at the company Mr. Jobs co-founded 20 years ago. The deal is a coup for 41-year-old Mr. Jobs, who owns half of Next and who has tried to take it public for years. The big question: Is it a similarly good deal for Apple? ... discussing the abrupt acquisition of Next, William Jolitz expressed optimism that this acquisition, if handled appropriately, could be a good opportunity for Apple "If they can pull it off, Apple might actually break ahead of the field. They have a possibility of being a surprise dark-horse finisher." [See also Darwin/Mac OS X: The Fifth BSD.]
What’s Venture Doing? October 2001. What’s Venture Doing? TANSTAFL - There Ain't No Such Thing As Free Lunch, Mo Krochmal, DotComScoop.com. Where’s Sand Hill Road parking their money? Commentary.
Darwin/Mac OS X: The Fifth BSD April 12, 2002. The Terminal Mac, Darwin/Mac OS X: The Fifth BSD, Lance M. Westerhoff, Applelust, "... [William Jolitz] posted a fully compilable and bootable system for personal computers built with the Intel 386 CPU. This release was the first of the 386BSD distribution." [See also Apple's Next Step is a Software Gamble.]
Among the deluge of sarcastic messages ... March 10, 2003. Among the deluge of sarcastic messages… Good Morning Silicon Valley, John Paczkowski, San Jose Mercury News. “I received about the researchers who managed to transmit 6.7 gigabytes of data from Sunnyvale, Calif., to Amsterdam in less than a minute was this one from Lynne Jolitz, who suggests that such a transmission rate would aid and abet the downloading of more than digital content…” Commentary.
Automatic Security Leak July 2, 2003 Technology "Automatic Security Leak"by David Strom, VARBusiness. “"The point is to create a better user experience where they did not need to do hideous system administration," says William Jolitz...” News and perspective.
Talk About Legacy Machines January 5, 2004 Applications "Talk About Legacy Machines"by Michael Cooney, Associate News Editor, Network World. “The 6th annual fair featured sessions led by renowned technology developers such as William and Lynne Jolitz, co-inventors of 386BSD - the first open source Berkeley Software Distribution Unix system for the x86 platform.” News and perspective.
Spotlight on "Hidden Physicists"
September 23, 2004. Spotlight on "Hidden Physicists", Radiations Magazine of the Sigma Pi Sigma National Physics Honors Society. “Lynn Greer Jolitz has been a
founder of startups ranging from workstations
to Internet infrastructure. She is
currently founder and CTO of
ExecProducer, an Internet multimedia
collaboration company.” Commentary.
Cyberbullying 101 January 21, 2005. Commentary, on Cyberbullying 101… Just An Online Minute, Tobi Elkin, MediaPost.
How Do We Categorize Our Industry? January 26, 2005. Lynne Commentary on How Do We Categorize Our Industry?… OnlineSPIN, Cory Treffiletti, MediaPost.
Digging Silicon Valley's roots: some Homebrew Computer club & other newsletters online January 27, 2005. William Commentary - Silicon Valley's roots on Digging Silicon Valley's roots: some Homebrew Computer Club & other newsletters online… Silicon Valley's Memory Lane, Doug Millison, SiliconValleyWatcher.
Why so few women in tech? It's Anthro 101 February 7, 2005. Workplace, Lynne Commentary - Why so few women in tech? It's Anthro 101, on Opening doors for women in computing, Ed Frauenheim, c|net.
Where Are All the Women? February 16, 2005. Rants & Raves , Lynne Commentary - Where Are All the Women?, on Where Are All the Women?, Kristen Philipkoski, Wired.
Intel Develops Hardware To Enhance TCP/IP Stacks February 21, 2005. Intel Develops Hardware To Enhance TCP/IP Stacks, Timothy Lord, Slashdot. [See also InterProphet]
In Silicon Valley, it's often who you know February 25, 2005. Lynne Commentary - In Silicon Valley, it's often who you know, on In Silicon Valley, it's often who you know, Matt Marshall, SiliconBeat.
Design of a Voice Output Adapter for Computer 1977 West Coast Computer Faire, USA: The Design of a Voice Output Adapter for Computer, William F. (Bill) Jolitz. The design of a Voice Output Adapter for visually handicapped computer programmers is discussed. This device, based on a DEC LSI-11 microcomputer and a VOTRAX VS-6 synthesizer will generate speech from ordinary typed text. Phonetic translation is accomplished by a set of rules, instead of a dictionary. Although this device uses a VOTRAX synthesizer, and experimentation has been limited to English, the device will act independently of language or synthesizer type. All software will reside in the main memory; no peripheral memory will be used. This results in a compact device.
UNIX on the National Semiconductor NS16032 Winter 1983 USENIX Conference Proceedings. UNIX on the National Semiconductor NS16032 (, William F. (Bill) Jolitz, with Glenn Skinner and Laura Neff). Using Unix as a micro-program development tool. Unix is standardized on many working platforms, so it is used to debug a new microprocessor and novel memory management unit designed at National Semiconductor in a project code-named Project Mesa.
The 375 and 875 Single Microprocessor BSD-Unix Systems Symmetric Computer Systems. The 375 and 875 Single Microprocessor BSD-Unix Systems. 1982-1990.
A Survey of Select Utilities on Current and Future Demand Side Management Strategies for the 1990’s October 1989. TeleMuse. A Survey of Select Utilities on Current and Future Demand Side Management Strategies for the 1990’s, Lynne Greer Jolitz . Marketing assessment for the American power industry. Still pertinent today (don't utilities every change?). Done under contract for MSC.
Jurisdiction and the Information Superhighway 12/95 UC Berkeley, Berkeley, CA. Jurisdiction and the Information Superhighway, William F. (Bill) Jolitz. An individual in Tennessee downloads a pornographic image from a computer located in California, initiating an action brought by Tennessee authorities against the California business which owns the computer. Since the Internet spans not only state and federal jurisdictions but also international boundaries, the question of just who has personal jurisdiction impacts the choice of which laws to apply to commerce on the Internet. This question of jurisdiction is pivotal if we are to resolve the emerging conflicts just beginning to manifest themselves in the area of communications and technology commerce.
In this paper, the author argues for a doctrine independent of the technology itself to resolve these questions of personal jurisdiction to arrive at an obvious and equitable resolution of the conflict. 1 Since the basis of any legal system is that it be valid, reasonable, certain, flexible and knowable, the lack of clear rulings with respect to jurisdiction and Internet com- merce have led to confusion. In sum, the current doctrine is not knowable (since it depends on who is doing commerce in what jurisdiction), and not flexible (it must be revised every time technology appears to change); hence, it is inconsistently applied (and thus it is not reasonable or certain as to what the end result will be). This lack of clarity has resulted in confusion and ignorance as to the application of law on the Internet -- to the point that it is currently driven by a "law of the jungle" ethos.
Why NT Will Bury UNIX .... 3/96 Software Development Conference, San Francisco, CA. Why NT Will Bury UNIX, William Jolitz and Lynne Jolitz. The operating systems wars have been waged as long as computers have existed. Now, an aggressive and determined software company is attempting to position itself to conquer the entire market. In this paper, we answer the questions: How real is this threat? What are the actual stakes? And should NT succeed, where does UNIX stand as an also-ran? We also provide a preview of the pending truly new technology operating systems -- where the next great battleground will be fought.
... And Why the Internet Will Bury NT 4/97
Software Development Conference, San Francisco, CA. And Why the Internet Will Bury NT, William Jolitz and Lynne Jolitz. The Internet is metamorphosing into a single vehicle for information. The question is no longer Who will win the OS war, but instead Is the OS war relevant anymore? This talk examines how this new Internet age and its demands force the reshaping of OS technologies and the industry. Then Sliders scenarios are presented along with predictions about the next set of OS technology losers and winners.
Enabling the New Internet Enterprise InterProphet Corporation Business Plan. Enabling the New Internet Enterprise, William Jolitz and Lynne Jolitz,(with Ross Hunt). 1997-2000.
From 386bsd to OSPREY: The Evolution of an Operating System October 2002. Grace Hopper Conference 2002, Vancouver, BC. From 386BSD to OSPREY: The Evolution of an Operating System, Lynne Greer Jolitz . While 386BSD is famous for pioneering inexpensive 386-based Unix systems for academics and open source code for programmers, it also proved to be a fungible framework for new approaches, unfettered by legacy or short-term commercial objective. This paper examines a single aspect of OS operation in the form of tracking root resource usage in a server, specifically processor and memory. This aspect is extremely relevant to all corporate datacenters, as the cost effectiveness of banks of as many as hundreds of servers is directly related to how effectively these two are utilized. Poor utilization of resources means a datacenter needs more machines to do the same work, while perfect resource utilization would match resource to need exactly. The author believes that the findings generalize to most other aspects of servers, as they derive efficiencies from the underlying effectiveness of these root resources – issues 386BSD addressed years ago. Due to the structure of Unix itself, however, some root resource legacies can only be conquered with a radical new approach, inspiring the OSPREY system.
All You Need is TCP: EtherSAN and Storage Networks May 2004. Digital Technology Center Intelligent Storage Workshop 2004, Minneapolis, MN. All You Need is TCP: EtherSAN and Storage Networks, William Jolitz and Lynne Jolitz. In this proposal, we discuss applying the end-to-end principle and a patented low latency TCP mechanism to create a global storage network architecture we call EtherSAN.
Lessons Learned in Massive Video Production (MVP) for University Alumni Outreach June 2004. ACM SIGCHI International Conference on Advances in Computer Entertainment Technology (ACE 2004). National University of Singapore, Singapore. Lessons Learned in Massive Video Production (MVP) for University Alumni Outreach, Lynne Greer Jolitz . In this paper, we describe lessons learned in creating a Massive Video Production (MVP) mechanism and filmography environment for the University of California at Berkeley. The goal was to provide a university department mandated to expand alumni outreach with personalized university-branded alumni VideoGreetings using a convenient and dynamic alumni outreach tool with modern multimedia production standards coupled with commonplace digital camera raw clips with no intervention on the part of the alumni coordinator and department other than editorial approval of the finished production. The actual mechanism consists of a hosted production engine, filmography and search environment, review and editorial functions, and subscription and protection. See also Lynne Jolitz Invited to Present at ACE2004 and retail version of this service can be found at "MinutePitch - Your Video Screen on the Web!", quick pitch ("Just Add Message ... That Easy!"), with details of what it provides ("What does MinutePitch do for you?"), what it does for you("Get the Most out of Video") and the point of using it ("Getting the Most out of Your Marketing and Sales Budget")
TCP/IP network accelerator system and method which identifies classes of packet traffic for predictable protocols US6173333: TCP/IP network accelerator system and method which identifies classes of packet traffic for predictable protocols. Grant Date: Jan. 9, 2001. Jolitz, et al. InterProphet Corporation . A network accelerator for TCP/IP includes programmable logic for performing network protocol processing at network signaling rates. The programmable logic is configured in a parallel-pipelined architecture controlled by state machines and implements processing for predictable patterns of the majority of transmissions. Incoming packets are compared with patterns corresponding to classes of transmissions which are stored in a content addressable memory, and are simultaneously stored in a dual port, dual bank application memory. The patterns are used to determine sessions to which an incoming IP datagram belongs, and data packets stored in the application memory are processed by the programmable logic. Processing of packet headers is performed in parallel and during memory transfers without the necessity of conventional store and forward techniques resulting in a substantial reduction in latency. Packets which constitute exceptions or which have checksum or other errors are processed in software. Filed July 17, 1998 Jolitz et. al. Provisional application filed Jul 18, 1997 , William Jolitz and Lynne Jolitz. See InterProphet Corporation for product/company/licensing details. See also Term Addressable Memory of an Accelerator System and Method
Term Addressable Memory of an Accelerator System and Method US6768992: Term Addressable Memory of an Accelerator System and Method. Grant Date: July 27, 2004. Lynne G. Jolitz. An improved term addressable memory of an accelerator system and method includes a mechanism for performing predetermined plurality of pattern matches of packets to classify them for use with stateful protocol processing units that can resolve session data spread across multiple data packets and process them for the ultimate destination. The invention replaces a conventional content addressable memory (CAM) with a term addressable memory, whereby redundant terms are recorded with a single memory entry. Two classes of terms are recorded with a single memory entry. Two classes of terms are used to match packet addresses and application ports, as well as a much smaller session CAM that matches the aggregate match of all terms to a specific session. Filed Jan. 8, 2001 , Lynne Greer Jolitz . See Lynne Jolitz term memory patent and TCP/IP network accelerator system and method which identifies classes of packet traffic for predictable protocols.
Accelerator system and method US6952409: Accelerator system and method. Issue Date: Oct 10, 2005. Lynne G. Jolitz. In a system consisting of a cell phone, wireless network, and a base station, for cell communication packets having a formatted header containing information about the packet, said cell phone comprising a modulator/RF detector and a DSP, the improvement comprising means for transparent bi-directional translation of audio/video protocols into Internet standard protocols, thereby allowing directed attachment to other stream oriented protocol devices without interposed protocol translation while reducing complexity. Filed Jan. 8, 2001 , Lynne Greer Jolitz . See also Lynne Jolitz term memory patent and TCP/IP network accelerator system and method which identifies classes of packet traffic for predictable protocols and Term Addressable Memory of an Accelerator System and Method.
Review of Source Code Secrets 8/92 Linux Journal, US: Review of Source Code Secrets (by Phil Hughes). "The book is well-written, and, I expect, accurate. If you want to know how the 386BSD kernel works, this book will tell you. And, if you want to know how to implement low-level functionality that requires dealing with 386 hardware, this book has a wealth of information on the subject."
Vintage Computer Faire 2002October 26, 2002. "Looking for Symmetric 375", "met Mr. and Mrs. Jolitz, who did the first work on porting BSD Unix to the 386" at Vintage Computer Faire 2002. NASA Ames Research Center. Showed the original Symmetric Computer Systems operational running wire-wrap (20,000 connections, 25x22 inch board) Proto I computer (in the case) from 1983. Also showed a final production unit operational with 4.3BSD SYMMETRIX from 1987. Discussion and display board on “Funding a Systems Startup” about Symmetric Computer Systems, a venture-backed company founded by William Jolitz in 1982.
Before 386bsd: The Symmetric 375 Computer and Berkeley Unix October 2003. Vintage Computer Faire 2003. Computer History Museum. Before 386BSD: The Symmetric 375 Computer and Berkeley Unix, William F. (Bill) Jolitz. Symmetric Computer Systems, a venture-funded company founded in 1982 by William Jolitz, was a contender in the hot race to produce a personal BSD Unix system. The Symmetric 375 was the first system out the door with hardware floating point and virtual memory, beating Sun by years. It was the first system with open source supplied, integrated, and tested, from EMACS to SPICE for use in scientific and engineering work. And it was the first to ship systems with all software fully installed and tested, ready for use immediately.Join William and Lynne as they discuss the design and development of the 375 computer and its influence on 386BSD - the first open source BSD system for the X86 released a decade later. See the article “Talk About Legacy Machines” by Michael Cooney (January 5, 2004) Associate News Editor of Network World.
Issues in Deployment of Wireless Web Services March 2003. SDForum Web Services SIG of Silicon Valley, Microsoft MV Campus, USA. Issues in Deployment of Wireless Web Services, William F. (Bill) Jolitz. Deploying high valued web services in a wireless environment is an all or nothing proposition - you must deliver on it to keep a loyal customer. This expectation of service quality is key to customer adoption of the product and monetization of the service. A software framework that provides for reliability and embedded monitoring is a critical part of the deployment story. With it, customer quality is maintained while challenges to the service are communicated back to the developers. Concurrent service improvement is possible so that a deployment can recover from the inevitable "soft failures" during rollout. Such a framework is described in my article on "Web Services and DataCenter Environments" in this April's edition of Dr. Dobbs Journal. Issues in Deployment of Wireless Web Services Presentation.
Open Software Development in the Real World June 2003. Internet Developers Group of Silicon Valley, AOL Campus, USA. "Open Software Development in the Real World, William F. (Bill) Jolitz. We hear a great deal about challenges to violations of Intellectual Property Rights. How are open-source developers, interested in bringing new functionality to the software world, able to complete their projects without falling victim to attacks regarding intellectual property challenges? William Jolitz’s experience bringing 386BSD, the foundation of all UNIX like operating systems, to the software community without Intellectual Property challenges gives him special insight into the necessary steps to take. Audio and video streams of the talk are available at Internet Developers Group
.
TV Quality Reliable Wireless Video Streaming September 2003. SDForum Emerging Technologies SIG of Silicon Valley, Palo Alto, CA, USA. TV Quality Reliable Wireless Video Streaming, William F. (Bill) Jolitz. Everybody wants to watch movies on a computer, but nobody does. It's worse on wireless, and even more hobbled on a cellphone or PDA. So what's a service provider to do? The customer expects TV or the service is toast. Is this possible? The problem is maintaining continuous service delivery quality. We know this, because downloaded movies play just fine. But download movies have other problems - copyright, storage demand, and unpredictable viewing availability. While there are cures, the cure is often worse - killing the emerging business.
Let's get real - download is really "plan ahead, pay once, use forever". Streaming is "pay per view" - what the service provider wants. It would be so much easier if reliable streaming worked over wireless. Today we either rollout unreliable wireless services or demo reliable services in a fantasy sandbox - the real world is a hard test. When you still can't get good cellphone coverage on the financial mecca of Sand Hill road, can you expect to pull out a PDA at Starbucks and get Shrek even half as good as a cheap TV can?
Yet large-scale wireless deployment is happening worldwide - the business opportunity of delivering on the services that get a ROI on this immense gamble is extreme. We can make reliable streaming over wire connections right now using bandwidth surplus, fast failover switching, and careful network design. But it still takes remarkably little to destabilize a single stream, let alone thousands in competition for transport resource.
In studying the stable stream we've found a novel hardware/software approach for wireless video. The network hardware is InterProphet's Silicon TCP stack used as a distributed transport that can achieve on-time delivery of video. A software framework that provides for reliability and embedded monitoring is a critical part of the deployment story in managing the infrastructure. With it, customer quality is maintained while challenges to the service are acted upon before a loss of quality can occur. Such a framework is re-purposed from delivering reliable web services, as described in my article on Web Services in Datacenter Environments in the April edition of Dr. Dobbs Journal. See TV Quality Reliable Wireless Video Streaming
Before 386bsd: The Symmetric 375 Computer and Berkeley Unix October 11, 2003. Vintage Computer Festival 2003. Computer History Museum. Before 386bsd: The Symmetric 375 Computer and Berkeley Unix, William Jolitz and Lynne Jolitz. Symmetric Computer Systems, a venture-funded company founded in 1982 by William Jolitz, was a contender in the hot race to produce a personal BSD Unix system. The Symmetric 375 was the first system out the door with hardware floating point and virtual memory, beating Sun by years. It was the first system with open source supplied, integrated, and tested, from EMACS to SPICE for use in scientific and engineering work. And it was the first to ship systems with all software fully installed and tested, ready for use immediately. Join William and Lynne as they discuss the design and development of the 375 computer and its influence on 386BSD - the first open source BSD system for the X86 released a decade later.
See the article “Talk About Legacy Machines”.
Archive of published works of various kinds by Jolitz. An essential part of the Jolitz Heritage has been widespread publication, commentary, and opinion. Literally hundreds of these items that are slowly being assembled into this site. Check back soon both for missing older items and new ones as well!
Published Items| Archive of published works of various kinds by Jolitz. An essential part of the Jolitz Heritage has been widespread publication, commentary, and opinion. Literally hundreds of these items that are slowly being assembled into this site. Check back soon both for missing older items and new ones as well! |
Designing a Software Specification 1/91 Dr. Dobbs Journal, USA: JAN91: PORTING UNIX TO THE 386: DESIGNING THE SOFTWARE SPECIFICATION, William Jolitz and Lynne Jolitz. In this first installment of a multipart series, the design specification for 386BSD, Berkeley UNIX for the 80386, is discussed. Contains: Getting Started: References, Equipment, and Software, Development of the 386BSD Specification, The Definition of the 386BSD Specification, Conflicts in Priorities, 386BSD Port Goals: A Practical Approach, Microprocessor and System Specification Issues, 386 Memory Management Vitals, Segmentation and 386BSD, Kernel Linear Address Space Overhead, Virtual Address Space Layout, Per-Process Data Structures, 386 Virtual Memory Address Translation Mechanism, User to Kernel Communication Primitives, Berkeley UNIX Virtual Memory System Strategy, Structure of Per-Process Data (u.), Process Context Description, Page Fault and Segmentation Fault Mechanism, Other Processor Faults, Microprocessor Idiosyncrasies, System Call Interface, System Specific (ISA) Issues, Physical Memory Map, ISA Device Controllers, ISA Device Auto Configuration, Interrupt Priority Level Management, Bootstrap Operation, Summary: Where is 386BSD Now?, and Suggested Readings. (Part of the series PORTING UNIX TO THE 386: A PRACTICAL APPROACH, see also Three Initial PC Utilities)
Three Initial PC Utilities 2/91 Dr. Dobbs Journal, USA: FEB91: PORTING UNIX TO THE 386: THREE INITIAL PC UTILITIES, William Jolitz and Lynne Jolitz. Utilities to let you execute GCC-compiled programs in protected mode from MS-DOS and copy files to a shared portion of disk so MS-DOS and UNIX can exchange information. Contains: The Purpose of Our PC Utilities, The First PC Utility: boot.exe, Unix Kernel Load Program, The GCC Executable Format, Consistency Checks, GATE A20, Entering Protected Mode, The Second PC Utility: cpfs.exe, The Third PC Utility: cpsw.exe, Where We Go From Here, and The 386BSD Project and Berkeley UNIX . (Part of the series PORTING UNIX TO THE 386: A PRACTICAL APPROACH, see also Designing a Software Specification and The Standalone System)
The Standalone System 3/91 Dr. Dobbs Journal, USA: The Standalone System, William Jolitz and Lynne Jolitz. Using the protected mode program loader, a minimal 80386 protected mode standalone C programming environment for operating systems kernel development is created. (See also Three Initial PC Utilities and Copyrights, Copyleft, and Competitive Advantage)
Copyrights, Copyleft, and Competitive Advantage 4/91 Dr. Dobbs Journal, USA: Copyrights, Copyleft, and Competitive Advantage, Lynne Greer Jolitz . An overview and analysis of the effects and trends towards the use of copyrights, Free Software Foundation (FSF) “copylefts”, and the impact on American competitive advantage.
Zwei Seiten der Medaille 4/91 UNIX Magazin, Germany: Zwei Seiten der Medaille, William Jolitz and Lynne Jolitz. Die Uniforum-Konferenz gehört zu den wichtigsten Veranstaltungen, die der UNIX-Kalender im Jahr aufweist. Grund genug, diese Veranstaltung wie in den Vorjahren für Sie zu besuchen, um wichtige Neuerungen und Trends aufzuspüren. Doch der Golfkrieg hat auch hier seine vergleichsweise bescheidenen Eindrücke hinterlassen; die geplanten Reisen mussten abgesagt werden. Mit Bill Jolitz konnte ein UNIX-Insider gefunden werden, der uns seine Eindrücke zukommen liess.
Language Tools Cross Support 4/91 Dr. Dobbs Journal, USA: Language Tools Cross Support, William Jolitz and Lynne Jolitz. Developing the inital cross-tool utilities to bootstrap 386BSD.
The Initial Root Filesystem 5/91 Dr. Dobbs Journal, USA: The Initial Root Filesystem, William Jolitz and Lynne Jolitz. The development of the initial root filesystem required for the 386BSD operating system kernel.
Portierung von BSD-UNIX auf den 80386. Heimliche Liebe 6/91 UNIX Magazin, Germany: Portierung von BSD-UNIX auf den 80386. Heimliche Liebe, William Jolitz and Lynne Jolitz. Bislang galt die Intel-Plattform als Hochburg von AT&T System V, während vor allem der technische Workstationmarkt nach wie vor mit BSD-UNIX arbeitet. Kein Wunder, dass die BSD-FAns auf einen 80386-Port warteten. Unsere 386BSD-Serie beschreibt im Detail den Port und gibt wichtige Einblicke in BSD.
Research and the Commercial Sector: Where Does BSD Fit In? 6/91 Dr. Dobbs Journal, USA: Research and the Commercial Sector: Where Does BSD Fit In?, William Jolitz and Lynne Jolitz. A discussion of the various demands placed on research and commercial operating systems, and how they differ.
Steighilfe 7/91 UNIX Magazin, Germany: Steighilfe, William Jolitz and Lynne Jolitz. Der BSD-Kernel steht nicht gleich zu Beginn eines Ports in voller Blüte auf der neuen Hardwareplattform zur Verfügung. Bis man soweit ist, kann man sich auch die Funktionen eines bereits lauffähigen Systems, hier is es MS-DOS einschliesslich seiner Applikationen, zunutze machen.
A Stripped-Down Kernel 7/91 Dr. Dobbs Journal, USA: A Stripped-Down Kernel, William Jolitz and Lynne Jolitz. The 386BSD basic kernel, incorporating a unique recursive paging feature that leverages resources and reduces complexity.
Systemverwaltung durch Tabellen 8/91 UNIX Magazin, Germany: Systemverwaltung durch Tabellen, William Jolitz and Lynne Jolitz. Eine der wichtigsten Hürden, die bei der Portierung von BSD auf den 386 zu überwinden ist: die fehlerfreie Initialisierung der Systemtabellen im Protected Mode. Überraschungen sind zu jeder Zeit angesagt.
The Basic Kernel 8/91 Dr. Dobbs Journal, USA: The Basic Kernel, William Jolitz and Lynne Jolitz. Initialization of the 386BSD kernel services and data structures.
Sicher bewegen auf fremdem Terrain 9/91 UNIX Magazin, Germany: Sicher bewegen auf fremdem Terrain, William Jolitz and Lynne Jolitz. Die richtige Auswahl der Entwicklungs-hardware und -software kann während der eigentlichen Portierung viel Zeit sparen. Der Cross-Support offenbart auch so genügend Hindernisse, die zu überwinden sind.
Multiprogramming and Multiprocessing I 9/91 Dr. Dobbs Journal, USA: Multiprogramming and Multiprocessing I, William Jolitz and Lynne Jolitz. An overview of the multiprogramming paradigm in 386BSD. Conventions, definitions, and organization of multiprogramming.
Damit die Fehlersuche nicht zum Hürdenspringen wird 10/91 UNIX Magazin, Germany: Damit die Fehlersuche nicht zum Hürdenspringen wird, William Jolitz and Lynne Jolitz. Bei der Portierung eines Paketes wie BSD-UNIX muss man als Programierer verschiedene Verfahren zur Fehlersuche kombiniert einsetzen. Erst die Kombinartion führt zum Ziel, denn schliesslich pochen auch die Tools auf ihr Recht auf Fehler.
Multiprogramming and Multiprocessing II 10/91 Dr. Dobbs Journal, USA: Multiprogramming and Multiprocessing II, William Jolitz and Lynne Jolitz. How multiprogramming is achieved via multitasking. A discussion of the process. Alternative implementations and trade-offs. A reflection on why it has been so difficult to add multiprogramming to non-UNIX operating systems such as MS-DOS.
Alles in eine Schublade 11/91 UNIX Magazin, Germany: Alles in eine Schublade, William Jolitz and Lynne Jolitz.
Device Autoconfiguration 11/91 Dr. Dobbs Journal, USA: Device Autoconfiguration, William Jolitz and Lynne Jolitz. How 386BSD discovers hardware devices that are present and configures itself for operation with those devices.
Feuer und Wasser 12/91 UNIX Magazin, Germany: Feuer und Wasser, William Jolitz and Lynne Jolitz.
Rekursives Speicher-Mapping 1/92 UNIX Magazin, Germany: Rekursives Speicher-Mapping, William Jolitz and Lynne Jolitz. Die Speicherverwaltung gehört zu den Kernstücken jeder UNIX-implementation. Mit dem rekursiven Paging haben sich die Autoren ein neues Verfahren ausgedacht, weiches nicht nur auf dem 80386 eine verbesserte Performance ermöglicht.
Tanz auf dem Eis 2/92 UNIX Magazin, Germany: Tanz auf dem Eis, William Jolitz and Lynne Jolitz. Gerade die ersten wackeligen Schritte des Kernels in seiner unvoliständigen Systemumgebung sind die kritischen. Diese Folge beschreibt neben dem rekusiven Paging, wie man sich auf dem brüchigen Eis bewegt.
Unix Device Drivers I 2/92 Dr. Dobbs Journal, USA: Unix Device Drivers I, William Jolitz and Lynne Jolitz. The structure of 386BSD device drivers, interfaces to the operating system, and minimal device drivers for the console, disk drive and scheduling clock of the PC.
Aus Hänschen wird Hans 3/92 UNIX Magazin, Germany: Aus Hänschen wird Hans, William Jolitz and Lynne Jolitz. Auch ein so umfangreiches Betreibssystem wie UNIX fängt mal kelin an. Gemeint ist die Bootphase, in der sich der Riese aus kleinen Teilen seibst zusammensetzt. Wer wollte nich schon einmal wissen, weiche Strategie hierbei verfolgt wird, um aus dem grossen Sortiment der Tabellen, Pages, Layer und Funktionen ein funktionierendes Ganzes zu machen.
Unix Device Drivers II 3/92 Dr. Dobbs Journal, USA: Unix Device Drivers II, William Jolitz and Lynne Jolitz. Interfaces to the operating system. Entering, exiting and masking processor interrupts. (See also Unix Device Drivers I andUnix Device Drivers III)
Das Geheimnis des Multiprogramming 4/92 UNIX Magazin, Germany: Das Geheimnis des Multiprogramming, William Jolitz and Lynne Jolitz. Einer der wichtigsten Unterschiede von Unix gegenüber den Singeltasking Systemen wie MS-DOS ist der von Anfang an einbezogene Faktor des Multiprogramming. Erst hiermit können auf einen einzigen Prozessor das Gefühl und die vielfältigen Möglichkeiten der Parallelverarbeitung nicht nur versprochen, sondern auch gehalten werden.
Unix Device Drivers III 4/92 Dr. Dobbs Journal, USA: Unix Device Drivers III, William Jolitz and Lynne Jolitz. Completion of basic 386BSD device drivers.
Missing Pieces I 5/92 Dr. Dobbs Journal, USA: Missing Pieces I, William Jolitz and Lynne Jolitz. Finishing the NET/2 release of Berkeley UNIX to obtain a complete, unencumbered system for the 386 PC. Describes the methodology and implementation of the remaining facilities necessary to generate a working operating system for the PC. (See also Unix Device Drivers III and Missing Pieces II)
Magie des Kernels 6/92 UNIX Magazin, Germany: Magie des Kernels, William Jolitz and Lynne Jolitz. Als Anwender eines Multitasking-Betriebssystems nutzt man die praktischen Möglichkeiten, ohne zu wissen, welche fundamentalen Dienstleistungen innerhalb des Kernels dafür verantwortlich sind.
Missing Pieces II 6/92 Dr. Dobbs Journal, USA: Missing Pieces II, William Jolitz and Lynne Jolitz. Finishing the NET/2 release of Berkeley UNIX to obtain a complete, unencumbered system for the 386 PC. Describes the methodology and implementation of the remaining facilities necessary to generate a working operating system for the PC.
Erkenne Dich Selbst 7/92 UNIX Magazin, Germany: Erkenne Dich Selbst, William Jolitz and Lynne Jolitz. Kenner der BSD-Systeme Wissen die Systemmeldungen während des Bootvorganges zu entziffern. In dieser Folge wird das zugrundeliegende Schema der Autokonfiguration der Gerätetreiber näher beschrieben. Vorteil dieser Technik is, dass erst beim Booten die aktuellen Daten der angeschlossenen Devices in den Kernel übernommen werden. Die Zeit der Betriebssystem-Patches sollte damit vorbei sein.
The Final Step: Running Light with 386bsd 7/92 Dr. Dobbs Journal, USA: The Final Step: Running Light with 386BSD, William Jolitz and Lynne Jolitz. Overview of the impact of Release 0.0 on the BSD community. Installation procedures for and highlights of Release 0.1. Final installment of series.
High-Speed Networking 8/92 Dr. Dobbs Journal, USA: High-Speed Networking, William F. (Bill) Jolitz. Even though network systems with data transfer rates in the gigabits-per-second range are just around the corner, today's software architectures won't necessarily scale well to higher rates. The problems and promises of high-speed networking are examined, focussing on header prediction and forward-error correction.
Das Beste aus ISA machen 9/92 UNIX Magazin, Germany: Das Beste aus ISA machen, William Jolitz and Lynne Jolitz. Die Autokonfiguration bietet ein hohes Mass an Flexibilität bezüglich der Auswahl peripherer Einheiten. Doch so gut das Betriebssystem hierzu vorbereitet sein mag, so abhängig ist dieses doch von der zugrundeliegenden Hardware. Die betagte, aber weitverbreitete ISA-Architektur des PC/AT-Bus bereitet bei der Portierung denn auch oft Kopfschmerzen.
Coming to Grips with the Information Age 9/92 Dr. Dobb’s Journal, USA: Programmer’s Bookshelf: Coming to Grips with the Information Age, William F. (Bill) Jolitz. William Jolitz writes on the seperated evolution of the Internet apart from the world's largest connected network - the telephone system, as he reviews Global Telecommunications: Layered Networks, Layered Services by Robert Heldman.
Das Beste aus ISA machen 9/92 UNIX Magazin, Germany: Das Beste aus ISA machen, William Jolitz and Lynne Jolitz. Die Autokonfiguration bietet ein hohes Mass an Flexibilität bezüglich der Auswahl peripherer Einheiten. Doch so gut das Betriebssystem hierzu vorbereitet sein mag, so abhängig ist dieses doch von der zugrundeliegenden Hardware. Die betagte, aber weitverbreitete ISA-Architektur des PC/AT-Bus bereitet bei der Portierung denn auch oft Kopfschmerzen.
Treiberlatein 10/92 UNIX Magazin, Germany: Treiberlatein, William Jolitz and Lynne Jolitz. Damit ein Betriebssystem das Laufen lernt, müssen zumindestens gewisse Grundbedürfnisse der Schnittstelle zur Hardware befriedigt werden. Diese Aufgabe erledingen die Device-Treiber, deren grundsätzliche Arbeitsweise und Umfeld in dieser Folge näher beschrieben wird.
Inside the ISO-9660 Filesystem Format 12/92 Dr. Dobbs Journal, USA: Inside the ISO-9660 Filesystem Format, William Jolitz and Lynne Jolitz. For delivering large amounts of data, CD-ROMS give you the biggest bang for the buck. The ISO-9660 filesystem format is discussed. Example utilities which allow a person to decode a CD-ROM and view a file are also presented.
Einladung erforderlich 12/92 UNIX Magazin, Germany: Einladung erforderlich, William Jolitz and Lynne Jolitz. Für die Ebene der Device-Treiber ist das Interrupthandling fundamental. Die Initialisierung der Interrupt-Tabellen sowie die Organisation der Treiber richtet sich bei 386-Systemen natürlich sehr eng nach den spezifischen Gegebenheiten der Hardware. Wie die Interrupts beim PC funktionieren, wird in dieser Folge beschrieben.
Extending Standards for CD-ROM 6/93 Dr. Dobbs Journal, USA: Extending Standards for CD-ROM, Lynne Greer Jolitz . Although ISO-compliant CD-ROMs are interchangeable and usable on any type of system, the minimalism that made the ISO-9660 standard successful is sometimes too minimal. Consequently, the Rock Ridge Group and others have developed extensions to give new life to CD-ROMs.
Under Lock and Key 9/93 Dr. Dobb’s Journal, USA: Programmer’s Bookshelf: Under Lock and Key, Lynne Greer Jolitz . While you can’t keep network systems and data under lock and key, there are security techniques you can still employ. Lynne examines the approaches presented in UNIX System Security and UNIX Installation, Security, and Integrity.
Very High Speed Networks: HiPPI and SIGNA Winter 1994 Dr. Dobbs Journal Information Highway Special Issue, USA: Very High Speed Networks: HiPPI and SIGNA, William Jolitz and Lynne Jolitz. Very high-speed networking is the key to rapidly and economically delivering large amounts of information.
Polymorphic Protocols 1/94 Dr. Dobbs Journal, USA: Polymorphic Protocols, William F. (Bill) Jolitz. The Internet's fixed address space is being put to the test by dramatic growth in the number of Internet users. Polymorphic protocols may ultimately be the solution to the address-space problem and similar network limitations.
Developer's Bookshelf: Gigabit Networking 7/94 Dr. Dobb's Developer Update, USA: Developer's Bookshelf: Gigabit Networking, William F. (Bill) Jolitz. A discussion of the state-of-the-art on gigabit networking.
Op Ed: Inside 'Intel Inside' 2/95 Dr. Dobb's Developer Update, USA: Op Ed: Inside 'Intel Inside', William F. (Bill) Jolitz. Reflections on Intel's Pentium debacle and how such problems should be handled in the future.
Security and the INTERNET 3/95 Dr. Dobb's Developer Update, USA: Security and the INTERNET, William Jolitz and Lynne Jolitz. A detailed analysis of the technical flaws in the TCP/IP implementations which allowed intrusion by a cracker over several months and new approaches to correct them.
Role-Based Network Security 5/95 Dr. Dobb’s Journal, USA: Role-Based Network Security, William Jolitz and Lynne Jolitz. Network level security is usually very costly, but through the use of role-based security, PC network administration can be reduced to a simple level without loss of integrity.
Perspectives on Computer Security 8/95 Dr. Dobb’s Journal, USA: Programmer’s Bookshelf: Perspectives on Computer Security, Lynne Greer Jolitz . When you get on the net, who can you trust? Lynne examines several new books that address this question: Network Security: Private Communications in a Public World, by Charlie Kaufman, Radia Perlman, and Michael Speciner; E-Mail Security, by Bruce Schneier; Network Security, by Steven Shaffer and Alan Simon; and Network Security: How to Plan for It and Achieve It, by Richard H. Baker. [Embedded in "Le Monde En Tique" ]
Book Review: POSIX.4 Programming 8/95 Dr. Dobb's Developer Update, USA: Book Review: POSIX.4 Programming, Lynne Greer Jolitz . Contrasts traditional operating systems techniques with real-time demands.
DNS on the Hot Seat November 2002. Byte.com, USA. DNS on the Hot Seat, Lynne Greer Jolitz . Distributed DOS attacks on the Internet's root servers can grind Web traffic to a halt. Is it time to find a replacement for DNS? Feature article.
DDOS: Just a Matter of Resource February 2003. Byte.com, USA. DDOS: Just a Matter of Resource, Lynne Greer Jolitz . Why are we so vulnerable still to distributed denial-of-service attacks? Because the Internet has no policy for monitoring service and isolating misbehaving network elements. Special Feature.
Web Services and DataCenter Environments
April 2003. Dr. Dobbs Journal, USA. Web Services and DataCenter Environments, William F. (Bill) Jolitz. Forget your cellphones and wireless PDAs. Web services can be used even more effectively in Internet datacenters to solve client communication errors and other such problems.Paving the Way for ‘Systers’ September 15, 2003. San Francisco Chronicle, Technology and Business Section page E1. USA. Paving the Way for ‘Systers’, Lynne Greer Jolitz . On Sept. 9, Anita Borg, a well-known computer scientist and champion for the advancement of women in the technology industry who died in April, was eulogized by colleagues at Stanford University's Memorial Auditorium. Here are the thoughts of Lynne Greer Jolitz , who has spearheaded several Silicon Valley Startups. Article also posted on SF Gate, among the top five newspaper-affiliated web sites in the U.S., with 4.9 million users and 58 million page views per month.
Memories and Cookies September 2003. Byte.com, USA. Memories and Cookies, Lynne Greer Jolitz . The optimism and untethered ambition of the dot-com boom may have vanished from the face of the Internet, but it lingers on in cookie files. Special Feature.
Buffer, Buffer, Where is the Buffer? October 2004. Byte.com, USA. Buffer, Buffer, Where is the Buffer?, Lynne Greer Jolitz .With so much of modern technology concerned with buffers, buffering, and the dreaded buffer overflow, Lynne asks: Can we build a better buffer?
The Problems of Personalization November 2004. Byte.com, USA. The Problems of Personalization, Lynne Greer Jolitz .Online retailers are crowding onto the "personalization" bandwagon—with humorous and occasionally insulting results.
Free Culture And the Internet
September 2004. Dr. Dobbs Journal, USA. Free Culture And the Internet, Lynne Greer Jolitz . Lynne Jolitz reviews the book Free Culture by Lawrence Lessig. See also Free Culture and the InternetThe Year Ahead January 2005. Byte.com, USA. The Year Ahead, Lynne Greer Jolitz .Lynne predicts that 2005 will bring us more spam, less security, and maybe some shake-ups in search—but each of these fields holds opportunity for technical innovation.
Search Engine Quirks and Search Engine Jerks May 2005. Byte.com, USA. Search Engine Quirks and Search Engine Jerks, Lynne Greer Jolitz . Search engines can seem almost human in their obsessions, preferences, and desires. But it's the real humans who can use search techniques to threaten a site or a business.
Misplaced software priorities
June 2005. C|net News.com.com, USA. Misplaced software priorities, William F. (Bill) Jolitz. We are in danger of losing out in the best and most interesting part of the software market. (See at "Misplaced software priorities | Perspectives | CNET News.com")Opinion: Getting "Beyond Fear": A Security Expert's Prescription for A Safer World June 23, 2005. TechWeb / Security Pipeline, USA. Opinion: Getting "Beyond Fear": A Security Expert's Prescription for A Safer World , Lynne Greer Jolitz . Open source pioneer Lynne Jolitz turns a skeptical eye toward airport security, wondering if all the pat-downs and X-rays are good policy. While politicians and the public debate whether the searches are too intrusive, Lynne says that's the wrong question. The real question is whether the searches are cost-effective. Are they the best way we can be spending our security effort and money? (See at "Security Pipeline | Opinion: Getting "Beyond Fear": A Security Expert's Prescription for A Safer World")
Innovation After Grokster August 2005. Byte.com, USA. Innovation After Grokster, Lynne Greer Jolitz . Will the Supreme Court's Grokster decision throttle innovation in video search, podcasting, and other emerging technologies?.
Geek of the Week Award Oracle E-Business Network, Geek of the Week Award, Lynne Greer Jolitz (January 2001) for 386bsd (1991-1995) and SiliconTCP (1997-2001) technologies.
2003 Alumni Award
Physics Department, University of California at Berkeley, 2003 Alumni Award, Lynne Greer Jolitz
(October 2003) for her work in behalf of the physics alumni association and outreach.The Symmetric 375 and Symmetrix Owner's Manual The Symmetric 375 and Symmetrix Owner's Manual, Lynne Greer Jolitz . Publisher: Symmetric Computer Systems, San Jose, CA. (1984, 1987). 260 pp. Documents the system administration, basic use of languages and utilities, and the hardware, including circuitry of the Symmetric 375 computer and its Berkeley Unix derived Symmetrix operating system. See also "Writing the Owner's Manual for the Symmetric 375 Computer system".
The 386BSD Release 1.0 CDROM Liner Notes 11/94 Dr. Dobbs Journal, USA: The 386BSD Release 1.0 CDROM Liner Notes, William Jolitz and Lynne Jolitz.(15 pages). We are pleased to present the release of our first official 386BSD Reference CD-ROM. This single CD-ROM contains the most up-to-date work in our continuing operating systems and networking research project including articles appearing in Dr. Dobb's Journal, select annotations, system and kernel source code, and executable binaries for select configurations. This CD-ROM is intended as a research and educational reference used to explore state-of the-art paradigms, choices, and trade-offs, as well as examine testbed implementations of these design choices. In addition, the collection of resources, articles, and other reference materials on this CD creates an informational programming resource that can be referred to again and again.. See also "The Fun with 386BSD".
Operating System Source Code Secrets Volume 1: The Basic Kernel
Operating System Source Code Secrets Volume 1: The Basic Kernel, William Jolitz and Lynne Jolitz. In this multi-volume series, William and Lynne examine the anatomy of an operating system. The heart of an operating system is the basic kernel. Like a human heart, the basic kernel provides a complex operating system a fundamental means to distribute resources to all other subsystems in order for them to function independently. Without the basic kernel, no other portion of the operating system can live. Among the most crucial of functions are: dynamic configuration; bootstrap and kernel program loading; memory allocation and management; process credentials and privileges; machine dependent elements (X86); system call, interrupt and exception handling; context switching; thread creation and destruction; process multiplexing; files and file descriptors; and UNIX and BSD API’s. In addition to its historical origins, the modularity and scalability of the complete kernel is discussed and how its future evolution impacts clustering, security, extensibility, and performance. Future scheduled volumes in this series will examine the virtual memory subsystem, the TCP/IP networking protocols, and Berkeley/WINSOCK sockets. Publisher: Peer-to-Peer Communications, Charlottesville, Virginia (1996). 530 pp. See also review386bsd カーネルソースコードの秘密 (Japanese)
386BSD カーネルソースコードの秘密William Frederick Jolitz/ Lynne Greer Jolitz 。
386BSDソースコードシリーズ。PCUNIXの先駆け386BSDのカーネルソースコードを開発者自ら詳細に解説しています。近代オペレーティングシステムの実装技術を余す所なく収録しています。アスキ。発売日1998/12/24。(588ページ) 。 ASCII, [Room KNEO（吉川邦夫の部屋）]
386BSD from the Inside-Out 386BSD from the Inside-Out, William Jolitz and Lynne Jolitz. Describes in detail the internal structure of the 386BSD operating system done by the authors as an example of operating system design methodology and implementation choice, thus reconciling the implementation-specific practice discussed in the Operating Systems Source Code Secrets series with formal operating systems design. The unique approach of this work is to proceed from fundamental structure of the kernel and its interfaces to the specific subsystems present within the operating system. This inside-out progression illuminates alternative choices for structure in a historical light by detailing how the decisions made in the past affect the current technology. The focus of this book is to provide an exploded view of a modern computer operating system and why it is composed the way it is, so that students of the field can grasp the concepts and methodologies chosen.
Operating System Source Code Secrets Volume 2: The Virtual Memory System
Operating System Source Code Secrets Volume 2: The Virtual Memory System, William Jolitz and Lynne Jolitz. This multivolume series examines the anatomy of an operating system. The brain of an operating system is the virtual memory system. Like a human brain, the virtual memory system is the means through which temporary and permanent memory is stored and accessed. Temporary memory is used as a workspace to assemble a new item before it is stored into permanent memory. Among those most fundamental of functions are: management of kernel and program virtual address spaces (creation, replication, modification, and destruction); management of store backing an address space (naming, protection, sharing, and inheritance of memory contents); persistent and temporary memory; machine dependent (X86) memory management unit control; copy-on-write semantics; main store and secondary store management; page replacement; memory mapped I/O; address space fault handling; demand loading from secondary store; lazy versus industrious evaluation; and UNIX and BSD API’s for address space control. The virtual memory module is not only a key subsystem of the operating system kernel but is itself composed of layers and levels of abstraction. These layers are discussed in terms of future evolution to support the needs of clustering, security, extensibility, and performance. 386BSD R1.0 Reference CD-ROM: Modular Kernel Design Modular Kernel Design, William Jolitz and Lynne Jolitz. Starting with Release 1.0, the 386BSD kernel was radically changed. Utilizing the lessons learned in modular design, the kernel is transformed into independent modules that may be included into the kernel program simply by adding a line into a parameterized makefile describing a system (ex: odysseus.mk). This is novel work done for 386BSD Release 1.0.
386BSD R1.0 Reference CD-ROM: So You Want to Write a UNIX Paper So You Want to Write a UNIX Paper, William Jolitz and Lynne Jolitz. Essay on the trials and tribulations of submitting novel research papers.
386BSD R1.0 Reference CD-ROM: CPU Kernel Facilities CPU Kernel Facilities (i386/cpu.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code specific to the central processor unit (CPU) which implements at the bottom level of abstraction a variety of kernel facilities.
386BSD R1.0 Reference CD-ROM: Process Creation Process Creation (kern/fork.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements the mechanism for replicating a process or thread, the basic concurrent objects in a POSIX-based system created explicitly by other user processes.
386BSD R1.0 Reference CD-ROM: Process Termination Process Termination (kern/exit.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements the mechanism for terminating a process or thread. POSIX processes may be terminated explicitly by a function call from the process being terminated itself, or implicitly, either as a result of a processor exception or of a signal sent by another process.
386BSD R1.0 Reference CD-ROM: Process Exceptions via Signals Process Exceptions via Signals (kern/sig.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements the POSIX signal mechanism for passing software interrupts to processes.
386BSD R1.0 Reference CD-ROM: Process Protection Process Protection (kern/cred.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code responsible for implementing the process protection mechanism.
386BSD R1.0 Reference CD-ROM: Process Privileges Process Privileges (kern/priv.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which provides the fine-grain definition for the use of privileges by other portions of the kernel code. It is in essence the gateway through which a privileged operation is permitted to be performed. This is novel work done for 386BSD Release 1.0.
386BSD R1.0 Reference CD-ROM: Executable File Format Emulator Executable File Format Emulator (kern/execve.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements the execution of program machine instruction binary files. It corresponds to the top layer of abstraction of a POSIX 1003.1-based system, by implementing the entire execve() functionality of that standard as a single system call. This is novel work done for 386BSD Release 1.0.
386BSD R1.0 Reference CD-ROM: File Descriptors File Descriptors (kern/descrip.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements the file and file descriptor mechanisms. It is through this mechanism that low level file-like objects are attached to the Posix program interface in the system calls which in turn implement all of the Posix functions used with files.
386BSD R1.0 Reference CD-ROM: Kernel Memory Allocator Kernel Memory Allocator (kern/malloc.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements the primary dynamic memory allocator of the kernel. It is composed of three functions: malloc(), free(), and kmeminit().
386BSD R1.0 Reference CD-ROM: Configuration in Kernel Design Configuration in Kernel Design (kern/config.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which configures the software modules of the kernel and reconciles a shared configuration file with the configuration scripts in every module. The configuration scripts themselves allow for symbolic reconfiguration of the kernel without altering its contents. This file also contains the device-independent device interfaces used by the kernel exclusively to access devices. This is novel work done for 386BSD Release 1.0.
386BSD R1.0 Reference CD-ROM: Process Scheduling Process Scheduling (kern/synch.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements the blocking, unblocking, and scheduling mechanisms used in a multiprogramming system.
386BSD R1.0 Reference CD-ROM: Memory Maps Memory Maps (vm/map.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements a series of routines for managing map entries and performing map operations on the map entries as needed for the rest of the virtual memory system, and is analogous to a virtual address database of sorts.
386BSD R1.0 Reference CD-ROM: Memory Objects Memory Objects (vm/object.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements management of memory objects for the virtual memory system.
386BSD R1.0 Reference CD-ROM: Paging Mechanism Paging Mechanism (vm/page.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code used to maintain the logical page abstraction vm_page.
386BSD R1.0 Reference CD-ROM: Page Reclamation Page Reclamation (vm/pageout.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements the page reclamation daemon (the paging replacement function).
386BSD R1.0 Reference CD-ROM: Fault Handling Fault Handling ( vm/fault.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which implements the virtual memory system's address space fault handler mechanism, interpreting both hardware and software faults on a portion of the address space.
386BSD R1.0 Reference CD-ROM: Filesystem Cache Management Filesystem Cache Management (fs/bio.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code used to implement the cache management of independent filesystems. It corresponds to the middle layer of abstraction of a filesystem which maintains the exchange of file data and metadata contents read or written to the external storage comprising the physical file.
386BSD R1.0 Reference CD-ROM: Filesystem Lookup Filesystem Lookup (fs/lookup.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD machine-independent code which is the initial point for transactions involving the filesystem. This file is responsible for turning file path names into the vnodes referenced by the rest of the virtual filesystem.
386BSD R1.0 Reference CD-ROM: Assembly Entry and Primitives Assembly Entry and Primitives (i386/locore.c), William Jolitz and Lynne Jolitz. Detailed discussion of the design, trade-offs, and implementation of the 386BSD file containing the initial assembly language that expands the core machine dependencies of the architecture of 386/486/Pentium processors. This is novel work done for 386BSD Release 1.0.
386BSD: Die unendliche Geschichte 8/92 UNIX Magazin, Germany: 386BSD: Die unendliche Geschichte (by Jürgen Fey, Editor). Siet über einem Jahr können Sie die 386BSD-Serie im UNIX Magazin verfolgen. Sietdem Release 0.0 über FTP verfügbar ist, hat sich das Interesse noch weiter verstärkt und von der Theorie in die Praxis verlagert. Wir haven Bill Jolitz im Berkeley-Nachbarort Oakland besucht und ihn nach den BSD-Hintergründen, seiner Philosophie und zukünftigen Entwicklungen befragt.
Faktor 10: Stauende; IP-Netze bis zu zehnmal schneller durch SiliconTCP 7/98 Gateway, Germany: Faktor 10: Stauende; IP-Netze bis zu zehnmal schneller durch SiliconTCP (by Jürgen Fey, Editor). Das Internet droht am eigenen Erfolg zu ersticken, denn allzu oft sind die Pipelines verstopft. SiliconTCP, ein einfaches und dennoch wirkungsvolles Verfahren könnte viele Probleme lösen und die Performance verzehnfachen.
The Unknown Hackers 5/00 Salon.Com USA.: The Unknown Hackers (by Rachel Chalmers). Bill and Lynne Jolitz may be the most famous programmers you've never heard of. Not many Linux-come-latelies know this, but Linux was actually the second open-source Unix-based operating system for personal computers to be distributed over the Internet. The first was 386BSD, which was put together by an extraordinary couple named Bill and Lynne Jolitz. In a 1993 interview in Meta magazine, Linus Torvalds himself name-checked their O.S. "If 386BSD had been available when I started on Linux," he said, "Linux would probably never have happened." (See also "The Fun with 386BSD")
Fixing the Bandwidth Bottleneck January 2001 (Air Date). Fixing the Bandwidth Bottleneck, Jeremy Burton, Host. Oracle E-Business Network. Lynne Jolitz, the co-creator of 386BSD, the first Berkeley Unix open source operating system, and SiliconTCP, the first ballistic protocol processing mechanism for wire-speed Internet transactions, contrasts past software mechanisms in operating systems with future hardware approaches.
DSL, Bandwidth and IPv6: Where are We Heading? April 2001 (Air Date). DSL, Bandwidth and IPv6: Where are We Heading?, John Dvorak, Host. Real Computing. Understanding the 2001 business fall-out in the DSL broadband area. A critical examination of IPv6. Finally, a look at what’s in it for the consumer.
Open Systems Networking With TCP/IP Open Systems Networking With TCP/IP, William Jolitz and Lynne Jolitz. A comprehensive course which details the TCP/IP protocol suite, the Internet CORE protocols and the basics of Internet architecture, including the Domain Name Server. It also examines the underlying concepts and principles of TCP/IP. Examples, network management, the integration of applications protocols into a useful network, and network operations are also discussed.
ISDN Networking Technology: A Strategic Overview ISDN Networking Technology: A Strategic Overview, William Jolitz and Lynne Jolitz. An introduction to the Integrated Services Digital Network (ISDN) is provided with a tour of motivations, standards, terminology, functional blocks, system equipment, link access protocols, signaling protocols and standard services. Specific case examples on the interoperability between current networking technology and ISDN are developed and examined. In addition, a number of possible ISDN applications are explored along with the current limitations and frustrations of the ISDN standards, the current schedule of events of ISDN service accessibility, and the near-term changes expected within the world of ISDN.
The Internet and ISDN The Internet and ISDN, William F. (Bill) Jolitz. This intensive short course reviewed ISDN basics, IP growth, ISDN service introductions, and existing ad hoc implementations. ISDN is studied as a catalyst for campus Internet service, using the University of California at Berkeley as a case example.
Apple's Next Step is a Software Gamble December 23, 1996. Apple's Next Step is a Software Gamble, Lee Gomes, The Wall Street Journal, (page B1) , Steve Jobs has persuaded Apple Computer Inc. to spend $400 million, mostly in cash, to buy his Next Software Inc., convincing Apple executives that it can fill a technological hole at the company Mr. Jobs co-founded 20 years ago. The deal is a coup for 41-year-old Mr. Jobs, who owns half of Next and who has tried to take it public for years. The big question: Is it a similarly good deal for Apple? ... discussing the abrupt acquisition of Next, William Jolitz expressed optimism that this acquisition, if handled appropriately, could be a good opportunity for Apple "If they can pull it off, Apple might actually break ahead of the field. They have a possibility of being a surprise dark-horse finisher." [See also Darwin/Mac OS X: The Fifth BSD.]
What’s Venture Doing? October 2001. What’s Venture Doing? TANSTAFL - There Ain't No Such Thing As Free Lunch, Mo Krochmal, DotComScoop.com. Where’s Sand Hill Road parking their money? Commentary.
Darwin/Mac OS X: The Fifth BSD April 12, 2002. The Terminal Mac, Darwin/Mac OS X: The Fifth BSD, Lance M. Westerhoff, Applelust, "... [William Jolitz] posted a fully compilable and bootable system for personal computers built with the Intel 386 CPU. This release was the first of the 386BSD distribution." [See also Apple's Next Step is a Software Gamble.]
Among the deluge of sarcastic messages ... March 10, 2003. Among the deluge of sarcastic messages… Good Morning Silicon Valley, John Paczkowski, San Jose Mercury News. “I received about the researchers who managed to transmit 6.7 gigabytes of data from Sunnyvale, Calif., to Amsterdam in less than a minute was this one from Lynne Jolitz, who suggests that such a transmission rate would aid and abet the downloading of more than digital content…” Commentary.
Automatic Security Leak July 2, 2003 Technology "Automatic Security Leak"by David Strom, VARBusiness. “"The point is to create a better user experience where they did not need to do hideous system administration," says William Jolitz...” News and perspective.
Talk About Legacy Machines January 5, 2004 Applications "Talk About Legacy Machines"by Michael Cooney, Associate News Editor, Network World. “The 6th annual fair featured sessions led by renowned technology developers such as William and Lynne Jolitz, co-inventors of 386BSD - the first open source Berkeley Software Distribution Unix system for the x86 platform.” News and perspective.
Spotlight on "Hidden Physicists"
September 23, 2004. Spotlight on "Hidden Physicists", Radiations Magazine of the Sigma Pi Sigma National Physics Honors Society. “Lynn Greer Jolitz has been a
founder of startups ranging from workstations
to Internet infrastructure. She is
currently founder and CTO of
ExecProducer, an Internet multimedia
collaboration company.” Commentary.Cyberbullying 101 January 21, 2005. Commentary, on Cyberbullying 101… Just An Online Minute, Tobi Elkin, MediaPost.
How Do We Categorize Our Industry? January 26, 2005. Lynne Commentary on How Do We Categorize Our Industry?… OnlineSPIN, Cory Treffiletti, MediaPost.
Digging Silicon Valley's roots: some Homebrew Computer club & other newsletters online January 27, 2005. William Commentary - Silicon Valley's roots on Digging Silicon Valley's roots: some Homebrew Computer Club & other newsletters online… Silicon Valley's Memory Lane, Doug Millison, SiliconValleyWatcher.
Why so few women in tech? It's Anthro 101 February 7, 2005. Workplace, Lynne Commentary - Why so few women in tech? It's Anthro 101, on Opening doors for women in computing, Ed Frauenheim, c|net.
Where Are All the Women? February 16, 2005. Rants & Raves , Lynne Commentary - Where Are All the Women?, on Where Are All the Women?, Kristen Philipkoski, Wired.
Intel Develops Hardware To Enhance TCP/IP Stacks February 21, 2005. Intel Develops Hardware To Enhance TCP/IP Stacks, Timothy Lord, Slashdot. [See also InterProphet]
In Silicon Valley, it's often who you know February 25, 2005. Lynne Commentary - In Silicon Valley, it's often who you know, on In Silicon Valley, it's often who you know, Matt Marshall, SiliconBeat.
Design of a Voice Output Adapter for Computer 1977 West Coast Computer Faire, USA: The Design of a Voice Output Adapter for Computer, William F. (Bill) Jolitz. The design of a Voice Output Adapter for visually handicapped computer programmers is discussed. This device, based on a DEC LSI-11 microcomputer and a VOTRAX VS-6 synthesizer will generate speech from ordinary typed text. Phonetic translation is accomplished by a set of rules, instead of a dictionary. Although this device uses a VOTRAX synthesizer, and experimentation has been limited to English, the device will act independently of language or synthesizer type. All software will reside in the main memory; no peripheral memory will be used. This results in a compact device.
UNIX on the National Semiconductor NS16032 Winter 1983 USENIX Conference Proceedings. UNIX on the National Semiconductor NS16032 (, William F. (Bill) Jolitz, with Glenn Skinner and Laura Neff). Using Unix as a micro-program development tool. Unix is standardized on many working platforms, so it is used to debug a new microprocessor and novel memory management unit designed at National Semiconductor in a project code-named Project Mesa.
The 375 and 875 Single Microprocessor BSD-Unix Systems Symmetric Computer Systems. The 375 and 875 Single Microprocessor BSD-Unix Systems. 1982-1990.
A Survey of Select Utilities on Current and Future Demand Side Management Strategies for the 1990’s October 1989. TeleMuse. A Survey of Select Utilities on Current and Future Demand Side Management Strategies for the 1990’s, Lynne Greer Jolitz . Marketing assessment for the American power industry. Still pertinent today (don't utilities every change?). Done under contract for MSC.
Jurisdiction and the Information Superhighway 12/95 UC Berkeley, Berkeley, CA. Jurisdiction and the Information Superhighway, William F. (Bill) Jolitz. An individual in Tennessee downloads a pornographic image from a computer located in California, initiating an action brought by Tennessee authorities against the California business which owns the computer. Since the Internet spans not only state and federal jurisdictions but also international boundaries, the question of just who has personal jurisdiction impacts the choice of which laws to apply to commerce on the Internet. This question of jurisdiction is pivotal if we are to resolve the emerging conflicts just beginning to manifest themselves in the area of communications and technology commerce.
In this paper, the author argues for a doctrine independent of the technology itself to resolve these questions of personal jurisdiction to arrive at an obvious and equitable resolution of the conflict. 1 Since the basis of any legal system is that it be valid, reasonable, certain, flexible and knowable, the lack of clear rulings with respect to jurisdiction and Internet com- merce have led to confusion. In sum, the current doctrine is not knowable (since it depends on who is doing commerce in what jurisdiction), and not flexible (it must be revised every time technology appears to change); hence, it is inconsistently applied (and thus it is not reasonable or certain as to what the end result will be). This lack of clarity has resulted in confusion and ignorance as to the application of law on the Internet -- to the point that it is currently driven by a "law of the jungle" ethos.
Why NT Will Bury UNIX .... 3/96 Software Development Conference, San Francisco, CA. Why NT Will Bury UNIX, William Jolitz and Lynne Jolitz. The operating systems wars have been waged as long as computers have existed. Now, an aggressive and determined software company is attempting to position itself to conquer the entire market. In this paper, we answer the questions: How real is this threat? What are the actual stakes? And should NT succeed, where does UNIX stand as an also-ran? We also provide a preview of the pending truly new technology operating systems -- where the next great battleground will be fought.
... And Why the Internet Will Bury NT 4/97
Software Development Conference, San Francisco, CA. And Why the Internet Will Bury NT, William Jolitz and Lynne Jolitz. The Internet is metamorphosing into a single vehicle for information. The question is no longer Who will win the OS war, but instead Is the OS war relevant anymore? This talk examines how this new Internet age and its demands force the reshaping of OS technologies and the industry. Then Sliders scenarios are presented along with predictions about the next set of OS technology losers and winners.Enabling the New Internet Enterprise InterProphet Corporation Business Plan. Enabling the New Internet Enterprise, William Jolitz and Lynne Jolitz,(with Ross Hunt). 1997-2000.
From 386bsd to OSPREY: The Evolution of an Operating System October 2002. Grace Hopper Conference 2002, Vancouver, BC. From 386BSD to OSPREY: The Evolution of an Operating System, Lynne Greer Jolitz . While 386BSD is famous for pioneering inexpensive 386-based Unix systems for academics and open source code for programmers, it also proved to be a fungible framework for new approaches, unfettered by legacy or short-term commercial objective. This paper examines a single aspect of OS operation in the form of tracking root resource usage in a server, specifically processor and memory. This aspect is extremely relevant to all corporate datacenters, as the cost effectiveness of banks of as many as hundreds of servers is directly related to how effectively these two are utilized. Poor utilization of resources means a datacenter needs more machines to do the same work, while perfect resource utilization would match resource to need exactly. The author believes that the findings generalize to most other aspects of servers, as they derive efficiencies from the underlying effectiveness of these root resources – issues 386BSD addressed years ago. Due to the structure of Unix itself, however, some root resource legacies can only be conquered with a radical new approach, inspiring the OSPREY system.
All You Need is TCP: EtherSAN and Storage Networks May 2004. Digital Technology Center Intelligent Storage Workshop 2004, Minneapolis, MN. All You Need is TCP: EtherSAN and Storage Networks, William Jolitz and Lynne Jolitz. In this proposal, we discuss applying the end-to-end principle and a patented low latency TCP mechanism to create a global storage network architecture we call EtherSAN.
Lessons Learned in Massive Video Production (MVP) for University Alumni Outreach June 2004. ACM SIGCHI International Conference on Advances in Computer Entertainment Technology (ACE 2004). National University of Singapore, Singapore. Lessons Learned in Massive Video Production (MVP) for University Alumni Outreach, Lynne Greer Jolitz . In this paper, we describe lessons learned in creating a Massive Video Production (MVP) mechanism and filmography environment for the University of California at Berkeley. The goal was to provide a university department mandated to expand alumni outreach with personalized university-branded alumni VideoGreetings using a convenient and dynamic alumni outreach tool with modern multimedia production standards coupled with commonplace digital camera raw clips with no intervention on the part of the alumni coordinator and department other than editorial approval of the finished production. The actual mechanism consists of a hosted production engine, filmography and search environment, review and editorial functions, and subscription and protection. See also Lynne Jolitz Invited to Present at ACE2004 and retail version of this service can be found at "MinutePitch - Your Video Screen on the Web!", quick pitch ("Just Add Message ... That Easy!"), with details of what it provides ("What does MinutePitch do for you?"), what it does for you("Get the Most out of Video") and the point of using it ("Getting the Most out of Your Marketing and Sales Budget")
TCP/IP network accelerator system and method which identifies classes of packet traffic for predictable protocols US6173333: TCP/IP network accelerator system and method which identifies classes of packet traffic for predictable protocols. Grant Date: Jan. 9, 2001. Jolitz, et al. InterProphet Corporation . A network accelerator for TCP/IP includes programmable logic for performing network protocol processing at network signaling rates. The programmable logic is configured in a parallel-pipelined architecture controlled by state machines and implements processing for predictable patterns of the majority of transmissions. Incoming packets are compared with patterns corresponding to classes of transmissions which are stored in a content addressable memory, and are simultaneously stored in a dual port, dual bank application memory. The patterns are used to determine sessions to which an incoming IP datagram belongs, and data packets stored in the application memory are processed by the programmable logic. Processing of packet headers is performed in parallel and during memory transfers without the necessity of conventional store and forward techniques resulting in a substantial reduction in latency. Packets which constitute exceptions or which have checksum or other errors are processed in software. Filed July 17, 1998 Jolitz et. al. Provisional application filed Jul 18, 1997 , William Jolitz and Lynne Jolitz. See InterProphet Corporation for product/company/licensing details. See also Term Addressable Memory of an Accelerator System and Method
Term Addressable Memory of an Accelerator System and Method US6768992: Term Addressable Memory of an Accelerator System and Method. Grant Date: July 27, 2004. Lynne G. Jolitz. An improved term addressable memory of an accelerator system and method includes a mechanism for performing predetermined plurality of pattern matches of packets to classify them for use with stateful protocol processing units that can resolve session data spread across multiple data packets and process them for the ultimate destination. The invention replaces a conventional content addressable memory (CAM) with a term addressable memory, whereby redundant terms are recorded with a single memory entry. Two classes of terms are recorded with a single memory entry. Two classes of terms are used to match packet addresses and application ports, as well as a much smaller session CAM that matches the aggregate match of all terms to a specific session. Filed Jan. 8, 2001 , Lynne Greer Jolitz . See Lynne Jolitz term memory patent and TCP/IP network accelerator system and method which identifies classes of packet traffic for predictable protocols.
Accelerator system and method US6952409: Accelerator system and method. Issue Date: Oct 10, 2005. Lynne G. Jolitz. In a system consisting of a cell phone, wireless network, and a base station, for cell communication packets having a formatted header containing information about the packet, said cell phone comprising a modulator/RF detector and a DSP, the improvement comprising means for transparent bi-directional translation of audio/video protocols into Internet standard protocols, thereby allowing directed attachment to other stream oriented protocol devices without interposed protocol translation while reducing complexity. Filed Jan. 8, 2001 , Lynne Greer Jolitz . See also Lynne Jolitz term memory patent and TCP/IP network accelerator system and method which identifies classes of packet traffic for predictable protocols and Term Addressable Memory of an Accelerator System and Method.
Review of Source Code Secrets 8/92 Linux Journal, US: Review of Source Code Secrets (by Phil Hughes). "The book is well-written, and, I expect, accurate. If you want to know how the 386BSD kernel works, this book will tell you. And, if you want to know how to implement low-level functionality that requires dealing with 386 hardware, this book has a wealth of information on the subject."
Vintage Computer Faire 2002
Before 386bsd: The Symmetric 375 Computer and Berkeley Unix October 2003. Vintage Computer Faire 2003. Computer History Museum. Before 386BSD: The Symmetric 375 Computer and Berkeley Unix, William F. (Bill) Jolitz. Symmetric Computer Systems, a venture-funded company founded in 1982 by William Jolitz, was a contender in the hot race to produce a personal BSD Unix system. The Symmetric 375 was the first system out the door with hardware floating point and virtual memory, beating Sun by years. It was the first system with open source supplied, integrated, and tested, from EMACS to SPICE for use in scientific and engineering work. And it was the first to ship systems with all software fully installed and tested, ready for use immediately.Join William and Lynne as they discuss the design and development of the 375 computer and its influence on 386BSD - the first open source BSD system for the X86 released a decade later. See the article “Talk About Legacy Machines” by Michael Cooney (January 5, 2004) Associate News Editor of Network World.
Issues in Deployment of Wireless Web Services March 2003. SDForum Web Services SIG of Silicon Valley, Microsoft MV Campus, USA. Issues in Deployment of Wireless Web Services, William F. (Bill) Jolitz. Deploying high valued web services in a wireless environment is an all or nothing proposition - you must deliver on it to keep a loyal customer. This expectation of service quality is key to customer adoption of the product and monetization of the service. A software framework that provides for reliability and embedded monitoring is a critical part of the deployment story. With it, customer quality is maintained while challenges to the service are communicated back to the developers. Concurrent service improvement is possible so that a deployment can recover from the inevitable "soft failures" during rollout. Such a framework is described in my article on "Web Services and DataCenter Environments" in this April's edition of Dr. Dobbs Journal. Issues in Deployment of Wireless Web Services Presentation.
Open Software Development in the Real World June 2003. Internet Developers Group of Silicon Valley, AOL Campus, USA. "Open Software Development in the Real World, William F. (Bill) Jolitz. We hear a great deal about challenges to violations of Intellectual Property Rights. How are open-source developers, interested in bringing new functionality to the software world, able to complete their projects without falling victim to attacks regarding intellectual property challenges? William Jolitz’s experience bringing 386BSD, the foundation of all UNIX like operating systems, to the software community without Intellectual Property challenges gives him special insight into the necessary steps to take. Audio and video streams of the talk are available at Internet Developers Group
TV Quality Reliable Wireless Video Streaming September 2003. SDForum Emerging Technologies SIG of Silicon Valley, Palo Alto, CA, USA. TV Quality Reliable Wireless Video Streaming, William F. (Bill) Jolitz. Everybody wants to watch movies on a computer, but nobody does. It's worse on wireless, and even more hobbled on a cellphone or PDA. So what's a service provider to do? The customer expects TV or the service is toast. Is this possible? The problem is maintaining continuous service delivery quality. We know this, because downloaded movies play just fine. But download movies have other problems - copyright, storage demand, and unpredictable viewing availability. While there are cures, the cure is often worse - killing the emerging business.
Let's get real - download is really "plan ahead, pay once, use forever". Streaming is "pay per view" - what the service provider wants. It would be so much easier if reliable streaming worked over wireless. Today we either rollout unreliable wireless services or demo reliable services in a fantasy sandbox - the real world is a hard test. When you still can't get good cellphone coverage on the financial mecca of Sand Hill road, can you expect to pull out a PDA at Starbucks and get Shrek even half as good as a cheap TV can?
Yet large-scale wireless deployment is happening worldwide - the business opportunity of delivering on the services that get a ROI on this immense gamble is extreme. We can make reliable streaming over wire connections right now using bandwidth surplus, fast failover switching, and careful network design. But it still takes remarkably little to destabilize a single stream, let alone thousands in competition for transport resource.
In studying the stable stream we've found a novel hardware/software approach for wireless video. The network hardware is InterProphet's Silicon TCP stack used as a distributed transport that can achieve on-time delivery of video. A software framework that provides for reliability and embedded monitoring is a critical part of the deployment story in managing the infrastructure. With it, customer quality is maintained while challenges to the service are acted upon before a loss of quality can occur. Such a framework is re-purposed from delivering reliable web services, as described in my article on Web Services in Datacenter Environments in the April edition of Dr. Dobbs Journal. See TV Quality Reliable Wireless Video Streaming
Before 386bsd: The Symmetric 375 Computer and Berkeley Unix October 11, 2003. Vintage Computer Festival 2003. Computer History Museum. Before 386bsd: The Symmetric 375 Computer and Berkeley Unix, William Jolitz and Lynne Jolitz. Symmetric Computer Systems, a venture-funded company founded in 1982 by William Jolitz, was a contender in the hot race to produce a personal BSD Unix system. The Symmetric 375 was the first system out the door with hardware floating point and virtual memory, beating Sun by years. It was the first system with open source supplied, integrated, and tested, from EMACS to SPICE for use in scientific and engineering work. And it was the first to ship systems with all software fully installed and tested, ready for use immediately. Join William and Lynne as they discuss the design and development of the 375 computer and its influence on 386BSD - the first open source BSD system for the X86 released a decade later.
See the article “Talk About Legacy Machines”.