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Bug 269870 - use .tar.7z archives
Summary: use .tar.7z archives
Status: RESOLVED WONTFIX
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: New packages (show other bugs)
Hardware: All Linux
: High enhancement
Assignee: Gentoo Linux bug wranglers
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2009-05-14 19:15 UTC by wbrana
Modified: 2009-05-15 17:57 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


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Description wbrana 2009-05-14 19:15:00 UTC
archives could use .tar.7z format since 7-Zip support multi-threaded operation
which is 4 times faster on Quad Core than single-threaded operation
lzma-utils don't support multi-threading.

7-Zip (A) 4.65  Copyright (c) 1999-2009 Igor Pavlov  2009-02-03
p7zip Version 4.65 (locale=C,Utf16=off,HugeFiles=on,4 CPUs)

RAM size:    3949 MB,  # CPU hardware threads:   4
RAM usage:    419 MB,  # Benchmark threads:      1

Dict        Compressing          |        Decompressing
      Speed Usage    R/U Rating  |    Speed Usage    R/U Rating
       KB/s     %   MIPS   MIPS  |     KB/s     %   MIPS   MIPS

22:    3134    99   3065   3049  |    31202   100   2812   2817
23:    3007    99   3081   3064  |    30790   100   2811   2819
24:    2899   100   3119   3117  |    30373   100   2816   2818
25:    2775   100   3171   3169  |    29901   100   2807   2812
----------------------------------------------------------------
Avr:          100   3109   3100               100   2811   2816
Tot:          100   2960   2958

7-Zip (A) 4.65  Copyright (c) 1999-2009 Igor Pavlov  2009-02-03
p7zip Version 4.65 (locale=C,Utf16=off,HugeFiles=on,4 CPUs)

RAM size:    3949 MB,  # CPU hardware threads:   4
RAM usage:    850 MB,  # Benchmark threads:      4

Dict        Compressing          |        Decompressing
      Speed Usage    R/U Rating  |    Speed Usage    R/U Rating
       KB/s     %   MIPS   MIPS  |     KB/s     %   MIPS   MIPS

22:   10658   348   2975  10368  |   123083   398   2789  11105
23:   11343   377   3064  11557  |   119459   393   2778  10931
24:    9594   344   3002  10315  |   118758   397   2771  11017
25:    9739   367   3026  11119  |   114618   390   2762  10778
----------------------------------------------------------------
Avr:          359   3017  10840               395   2775  10958
Tot:          377   2896  10899
Comment 1 Jeremy Olexa (darkside) (RETIRED) archtester gentoo-dev Security 2009-05-14 19:19:24 UTC
What is this a suggestion for? We don't repackage upstream tarballs. If you are suggesting that, it is a pretty insane request.
Comment 2 Rafał Mużyło 2009-05-14 23:09:31 UTC
What's more, there are tar.lzma tarballs,
but they're superseded by tar.xz tarballs
(we're not using them, probably cause
the final version of the utils has yet to come,
but upstream of a few packages already provides them).