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Bump version number to 0.5.2.
Update docs.
This commit is contained in:
Con Kolivas
parent
ead0e54182
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2af314cf9d
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@ -1,4 +1,13 @@
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lrzip ChangeLog
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NOVEMBER 2010, version 0.5.2 Con Kolivas
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* Fixed the Darwin build, again.
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* Fixed cases of extreme ram usage on 32 bit failing by limiting zpaq to 600MB
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windows as well.
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* Check page size if we can instead of assuming it's always 4k.
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* Improve the progress output.
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* Change failure to chmod and failure to set nice level to warnings only.
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* Standardise what's a stderr message and what's output.
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NOVEMBER 2010, version 0.5.1 Con Kolivas
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* Fix Darwin build - Darwin doesn't support mremap so introduce a fake wrapper
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for it.
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14
README
14
README
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@ -1,4 +1,4 @@
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lrzip v0.5.1
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lrzip README
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Long Range ZIP or Lzma RZIP
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@ -123,7 +123,8 @@ As you can see, the -U option gives the same compression in this case as the
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-M option, and for about 50% more time. The advantage to using -U is that it
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will work even when the size can't be encompassed by -M, but progressively
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slower. Why isn't it on by default? If the compression window is a LOT larger
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than ram, with a lot of redundant information it can be drastically slower.
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than ram, with a lot of redundant information it can be drastically slower. I
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may revisit this possibility in the future if I can make it any faster.
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Q. Can I use your tool for even more compression than lzma offers?
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A. Yes, the rzip preparation of files makes them more compressible by every
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@ -328,11 +329,12 @@ A. See http://www.7-zip.org and http://www.p7zip.org. Also, see the file
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LIMITATIONS
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Due to mmap limitations the maximum size a window can be set to is currently
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2GB on 32bit. Files generated on 64 bit machines with windows >2GB in size
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may not be decompressible on 32bit machines.
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2GB on 32bit unless the -U option is specified. Files generated on 64 bit
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machines with windows >2GB in size might not be decompressible on 32bit
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machines.
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BUGS:
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Probably lots.
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Probably lots. Tell me if you spot any :)
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Links:
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@ -357,7 +359,7 @@ Ed Avis for various fixes. Thanks to Matt Mahoney for zpaq code. Thanks to
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Jukka Laurila for Darwin support. Thanks to George Makrydakis for lrztar.
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Con Kolivas <kernel@kolivas.org>
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Mon, 4 Nov 2010
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Mon, 7 Nov 2010
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Also documented by
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Peter Hyman <pete@peterhyman.com>
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14
TODO
14
TODO
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@ -10,9 +10,19 @@ for a current file without doing any writes.
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Consider ncurses version or even GUI one.
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Consider using LZMA Filters for processor-optimized
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Consider using LZMA Filters for processor-optimised
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coding to increase compression.
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Get the ASM working on 64bit.
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Clean up the config system since it's a mystery to me.
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Clean up the config system since it's a mystery to me.
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Increased multi-threading.
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Make stdout work without a temporary file.
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Make stdin on decompression work without a temporary file.
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Make testing file integrity work without a temporary file.
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Stop breaking Darwin builds :P
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@ -1,3 +1,12 @@
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lrzip-0.5.2
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Fixed the Darwin build again.
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Fix the corner case of big ram usage on 32 bit zpaq failing due to the
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compression window not being limited by limiting zpaq to 600MB windows on 32
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bits as well.
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Some previous failures now only induce warnings.
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Improved progress output.
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lrzip-0.5.1
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Fixed the build on Darwin.
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22
configure
vendored
22
configure
vendored
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@ -1,6 +1,6 @@
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#! /bin/sh
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# Guess values for system-dependent variables and create Makefiles.
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# Generated by GNU Autoconf 2.67 for lrzip 0.5.1.
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# Generated by GNU Autoconf 2.67 for lrzip 0.5.2.
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#
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# Report bugs to <kernel@kolivas.org>.
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#
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@ -551,9 +551,9 @@ MAKEFLAGS=
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# Identity of this package.
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PACKAGE_NAME='lrzip'
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PACKAGE_TARNAME='lrzip-0.5.1'
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PACKAGE_VERSION='0.5.1'
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PACKAGE_STRING='lrzip 0.5.1'
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PACKAGE_TARNAME='lrzip-0.5.2'
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PACKAGE_VERSION='0.5.2'
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PACKAGE_STRING='lrzip 0.5.2'
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PACKAGE_BUGREPORT='kernel@kolivas.org'
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PACKAGE_URL=''
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@ -1221,7 +1221,7 @@ if test "$ac_init_help" = "long"; then
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# Omit some internal or obsolete options to make the list less imposing.
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# This message is too long to be a string in the A/UX 3.1 sh.
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cat <<_ACEOF
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\`configure' configures lrzip 0.5.1 to adapt to many kinds of systems.
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\`configure' configures lrzip 0.5.2 to adapt to many kinds of systems.
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Usage: $0 [OPTION]... [VAR=VALUE]...
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@ -1269,7 +1269,7 @@ Fine tuning of the installation directories:
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--infodir=DIR info documentation [DATAROOTDIR/info]
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--localedir=DIR locale-dependent data [DATAROOTDIR/locale]
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--mandir=DIR man documentation [DATAROOTDIR/man]
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--docdir=DIR documentation root [DATAROOTDIR/doc/lrzip-0.5.1]
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--docdir=DIR documentation root [DATAROOTDIR/doc/lrzip-0.5.2]
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--htmldir=DIR html documentation [DOCDIR]
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--dvidir=DIR dvi documentation [DOCDIR]
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--pdfdir=DIR pdf documentation [DOCDIR]
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@ -1286,7 +1286,7 @@ fi
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if test -n "$ac_init_help"; then
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case $ac_init_help in
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short | recursive ) echo "Configuration of lrzip 0.5.1:";;
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short | recursive ) echo "Configuration of lrzip 0.5.2:";;
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esac
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cat <<\_ACEOF
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@ -1375,7 +1375,7 @@ fi
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test -n "$ac_init_help" && exit $ac_status
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if $ac_init_version; then
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cat <<\_ACEOF
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lrzip configure 0.5.1
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lrzip configure 0.5.2
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generated by GNU Autoconf 2.67
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Copyright (C) 2010 Free Software Foundation, Inc.
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@ -2014,7 +2014,7 @@ cat >config.log <<_ACEOF
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This file contains any messages produced by compilers while
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running configure, to aid debugging if configure makes a mistake.
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It was created by lrzip $as_me 0.5.1, which was
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It was created by lrzip $as_me 0.5.2, which was
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generated by GNU Autoconf 2.67. Invocation command line was
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$ $0 $@
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@ -5324,7 +5324,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
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# report actual input values of CONFIG_FILES etc. instead of their
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# values after options handling.
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ac_log="
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This file was extended by lrzip $as_me 0.5.1, which was
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This file was extended by lrzip $as_me 0.5.2, which was
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generated by GNU Autoconf 2.67. Invocation command line was
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CONFIG_FILES = $CONFIG_FILES
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@ -5386,7 +5386,7 @@ _ACEOF
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cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
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ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
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ac_cs_version="\\
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lrzip config.status 0.5.1
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lrzip config.status 0.5.2
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configured by $0, generated by GNU Autoconf 2.67,
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with options \\"\$ac_cs_config\\"
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@ -1,5 +1,5 @@
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dnl Process this file with autoconf to produce a configure script.
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AC_INIT([lrzip],[0.5.1],[kernel@kolivas.org],[lrzip-0.5.1])
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AC_INIT([lrzip],[0.5.2],[kernel@kolivas.org],[lrzip-0.5.2])
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AC_CONFIG_HEADER(config.h)
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# see what our system is!
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AC_CANONICAL_HOST
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@ -17,14 +17,14 @@ using lrzip v0.42.
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Compression Size Percentage Compress Decompress
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None 365711360 100
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7z 53315279 14.6 2m4.770s 0m5.360s
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lrzip 52372722 14.3 2m48.477s 0m8.336s
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lrzip -z 43455498 11.9 10m11.335 10m14.296
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lrzip -l 112151676 30.7 0m14.913s 0m5.063s
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lrzip -g 73476127 20.1 0m29.628s 0m5.591s
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lrzip -b 60851152 16.6 0m43.539s 0m12.244s
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bzip2 62416571 17.1 0m44.493s 0m9.819s
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gzip 80563601 22.0 0m14.343s 0m2.781s
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7z 53315279 14.6 2m4s 0m5.4s
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lrzip 52372722 14.3 2m48s 0m8.3s
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lrzip -z 43455498 11.9 10m11s 10m14s
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lrzip -l 112151676 30.7 0m14s 0m5.1s
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lrzip -g 73476127 20.1 0m29s 0m5.6s
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lrzip -b 60851152 16.6 0m43s 0m12.2s
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bzip2 62416571 17.1 0m44s 0m9.8s
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gzip 80563601 22.0 0m14s 0m2.8s
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These results are interesting to note the compression of lrzip by default is
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@ -53,8 +53,11 @@ Tarball of 6 consecutive kernel trees.
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Compression Size Percentage Compress Decompress
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None 2373713920 100
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7z 344088002 14.5 17m26s 1m22s
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lrzip 104874109 4.4 11m37s 56s
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lrzip -l 223130711 9.4 05m21s 1m01s
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lrzip -U 73356070 3.1 08m53s 43s
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lrzip -Ul 158851141 6.7 04m31s 35s
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lrzip -Uz 62614573 2.6 24m42s 25m30s
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Things start getting very interesting now when lrzip is really starting to
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shine. Note how it's not that much larger for 6 kernel trees than it was for
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@ -62,16 +65,21 @@ one. That's because all the similar data in both kernel trees is being
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compressed as one copy and only the differences really make up the extra size.
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All compression software does this, but not over such large distances. If you
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copy the same data over multiple times, the resulting lrzip archive doesn't
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get much larger at all.
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get much larger at all. You might find this example interesting because the
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-U option is actually faster as well as providing better compression. The
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reason is that the window is not much larger than the amount of ram addressable
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(2GB), and it compresses so much more in the rzip stage that it makes up the
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time by not needing to compress anywhere near as much data with the backend
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compressor.
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Using the first example (linux-2.6.31.tar) and simply copying the data multiple
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times over gives these results with lrzip(lzo):
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Copies Size Compressed Compress Decompress
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1 365711360 112151676 0m14.913s 0m5.063s
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2 731422720 112151829 0m16.174s 0m6.543s
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3 1097134080 112151832 0m17.466s 0m8.115s
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1 365711360 112151676 0m14.9s 0m5.1s
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2 731422720 112151829 0m16.2s 0m6.5s
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3 1097134080 112151832 0m17.5s 0m8.1s
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I had the amusing thought that this compression software could be used as a
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Compression Size Percentage Compress Time Decompress Time
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None 10737418240 100.0
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gzip 2772899756 25.8 05m47.35s 2m46.77s
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bzip2 2704781700 25.2 16m15.603s 6m19.718s
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xz 2272322208 21.2 50m58.437s 3m52.734s
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7z 2242897134 20.9 26m36.333s 5m41.198s
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lrzip 1354237684 12.6 29m13.402s 6m55.441s
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lrzip -M 1079528708 10.1 23m44.226s 4m05.461s
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lrzip -l 1793312108 16.7 05m13.246s 3m12.886s
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lrzip -lM 1413268368 13.2 04m18.338s 2m54.650s
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gzip 2772899756 25.8 05m47s 2m46s
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bzip2 2704781700 25.2 16m15s 6m19s
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xz 2272322208 21.2 50m58s 3m52s
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7z 2242897134 20.9 26m36s 5m41s
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lrzip 1354237684 12.6 29m13s 6m55s
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lrzip -M 1079528708 10.1 23m44s 4m05s
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lrzip -l 1793312108 16.7 05m13s 3m12s
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lrzip -lM 1413268368 13.2 04m18s 2m54s
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lrzip -z 1299844906 12.1 04h32m14s 04h33m
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lrzip -zM 1066902006 9.9 04h07m14s 04h08m
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@ -123,4 +131,4 @@ Or, to make things easier, just use the default settings all the time and be
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happy as lzma gives good results. :D
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Con Kolivas
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Tue, 5th Nov 2010
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Tue, 7th Nov 2010
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