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Annotation of 43BSDReno/share/doc/smm/12.uchanges/0.t, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1986 Regents of the University of California.
        !             2: .\" All rights reserved.  The Berkeley software License Agreement
        !             3: .\" specifies the terms and conditions for redistribution.
        !             4: .\"
        !             5: .\"    @(#)0.t 6.7 (Berkeley) 4/15/86
        !             6: .\"
        !             7: .EH 'SMM:12-%''Bug Fixes and Changes in 4.3BSD'
        !             8: .OH 'Bug Fixes and Changes in 4.3BSD''SMM:12-%'
        !             9: .de IR
        !            10: \fI\\$1\\|\fR\\$2\\fR\\fR
        !            11: ..
        !            12: .TL
        !            13: Bug Fixes and Changes in 4.3BSD
        !            14: .sp
        !            15: April 15, 1986
        !            16: .AU
        !            17: Marshall Kirk McKusick
        !            18: James M. Bloom
        !            19: Michael J. Karels
        !            20: .AI
        !            21: Computer Systems Research Group
        !            22: Department of Electrical Engineering and Computer Science
        !            23: University of California, Berkeley
        !            24: Berkeley, California 94720
        !            25: (415) 642-7780
        !            26: .AB
        !            27: This document briefly describes the changes in the Berkeley version of
        !            28: .UX
        !            29: for the VAX\(dd
        !            30: .FS
        !            31: \(dd \s-2DEC\s0, \s-2VAX\s0, \s-2PDP\s0, \s-2MASSBUS\s0, \s-2UNIBUS\s0,
        !            32: \s-2Q-bus\s0 and \s-2ULTRIX\s0
        !            33: are trademarks of Digital Equipment Corporation.
        !            34: .FE
        !            35: between the 4.2BSD distribution of July 1983
        !            36: and this, its revision of March 1986.
        !            37: It attempts only to summarize the changes that have been made.
        !            38: .AE
        !            39: .SH
        !            40: .ce
        !            41: .LG
        !            42: Notable improvements
        !            43: .SM
        !            44: .sp
        !            45: .IP \s+1\(bu\s0
        !            46: The performance of the system has been improved to be at least as
        !            47: good as that of 4.1BSD, and in many instances is better.
        !            48: This was accomplished by improving the performance of kernel operations,
        !            49: rewriting C library routines for efficiency,
        !            50: and optimization of heavily used utilities.
        !            51: .IP \s+1\(bu\s0
        !            52: Many programs were rewritten to do I/O in optimal blocks for the filesystem.
        !            53: Most of these programs were doing their own I/O and not using the standard
        !            54: I/O library.
        !            55: .IP \s+1\(bu\s0
        !            56: The system now supports the Xerox Network System
        !            57: network communication protocols.
        !            58: Most of the remaining Internet dependencies in shared common code
        !            59: have been removed or generalized.
        !            60: .IP \s+1\(bu\s0
        !            61: The signal mechanism has been extended
        !            62: to allow selected signals to interrupt pending system calls.
        !            63: .IP \s+1\(bu\s0
        !            64: The C and Fortran 77 compilers have been modified so that they
        !            65: can generate single precision floating point operations.
        !            66: .IP \s+1\(bu\s0
        !            67: The Fortran 77 compiler and associated I/O library have undergone
        !            68: extensive changes to improve reliability and performance.  Compilation may,
        !            69: optionally, include optimization phases to improve code density and
        !            70: decrease execution time.
        !            71: Many minor bugs in the C compiler have been fixed.
        !            72: .IP \s+1\(bu\s0
        !            73: The math library has been completely rewritten
        !            74: by a group of numerical analysts
        !            75: to improve both its speed and accuracy.
        !            76: .IP \s+1\(bu\s0
        !            77: Password lookup functions now use a hashed database rather than linear
        !            78: search of the password file.
        !            79: .IP \s+1\(bu\s0
        !            80: C library string routines and several standard I/O functions
        !            81: were recoded in VAX assembler for greater speed.
        !            82: The C versions are available for portability.
        !            83: Standard error is now buffered within a single call to perform output.
        !            84: .IP \s+1\(bu\s0
        !            85: The symbolic debugger, \fIdbx\fP, has been dramatically improved.
        !            86: \fIDbx\fP works on C, Pascal and Fortran 77 programs and allows users
        !            87: to set break points and trace execution by source code line numbers,
        !            88: references to memory locations, procedure entry, etc.  \fIDbx\fP allows
        !            89: users to reference structured and local variables using
        !            90: the program's programming language syntax.
        !            91: .IP \s+1\(bu\s0
        !            92: A new internet name domain server has been added to allow sites to
        !            93: administer their name space locally and export it to the rest of the Internet.
        !            94: Sites not using the name server may use a static host table with a hashed
        !            95: lookup mechanism.
        !            96: .IP \s+1\(bu\s0
        !            97: A new time synchronization server has been added to allow a set of machines to
        !            98: keep their clocks within tens of milliseconds of each other.
        !            99: .br
        !           100: .ne 10
        !           101: .LP

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