From: Alexey Tourbin <at@altlinux.ru>
To: ALT Devel discussion list <devel@lists.altlinux.org>
Subject: Re: [devel] 4.1 obstacle: who will suffer?
Date: Sat, 27 Sep 2008 16:30:43 +0000
Message-ID: <20080927163043.GH22333@altlinux.org> (raw)
In-Reply-To: <20080927162212.GG22333@altlinux.org>
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On Sat, Sep 27, 2008 at 04:22:12PM +0000, Alexey Tourbin wrote:
> $ du -hs glibc-locales-2.5.1-alt7.x86_64.rpm
> 5.5M glibc-locales-2.5.1-alt7.x86_64.rpm
> $ rpm -qp --qf '%{PAYLOADCOMPRESSOR} %{PAYLOADFLAGS}\n' glibc-locales-2.5.1-alt7.x86_64.rpm
> lzma 2
> $ rpm2cpio glibc-locales-2.5.1-alt7.x86_64.rpm |wc -c
> 59561580
> $ rpm2cpio glibc-locales-2.5.1-alt7.x86_64.rpm |gzip -9 |wc -c
> 13146656
> $ rpm2cpio glibc-locales-2.5.1-alt7.x86_64.rpm |bzip2 |wc -c
> 10698481
> $ rpm2cpio glibc-locales-2.5.1-alt7.x86_64.rpm |lzma -2 |wc -c
> 5200645
> $ rpm2cpio glibc-locales-2.5.1-alt7.x86_64.rpm |lzma -5 |wc -c
> 2776880
> $ rpm2cpio glibc-locales-2.5.1-alt7.x86_64.rpm |lzma -8 |wc -c
> 1859862
> $
>
> Пакет glibc прошёл в Сизиф в обход incoming, и было использовано
> "быстрое" сжатие "lzma -2" (по умолчанию в rpm) вместо "сильного" сжатия
> "lzma -5" (по умолчанию в incoming). Как видно, "быстрое" сжатие даёт
> больше преимущество по сравнению с gzip и bzip2; но при "сильном" сжатии
> пакет glibc-locales мог бы получиться ещё почти вдвое меньше по размеру.
Точнее, на треть меньше:
$ perl -le 'print 1-1859862/2776880'
0.330233211373916
$
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next prev parent reply other threads:[~2008-09-27 16:30 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-17 8:36 Igor Vlasenko
2008-09-17 8:44 ` Ildar Mulyukov
2008-09-17 8:49 ` Igor Vlasenko
2008-09-17 8:52 ` Stanislav Ievlev
2008-09-17 11:22 ` Vitaly Ostanin
2008-09-17 11:58 ` Dmitry V. Levin
2008-09-17 18:51 ` Michael Shigorin
2008-09-17 21:10 ` Dmitry V. Levin
2008-09-18 7:04 ` Michael Shigorin
2008-09-27 16:22 ` Alexey Tourbin
2008-09-27 16:30 ` Alexey Tourbin [this message]
2008-09-27 16:32 ` Alexey Tourbin
2008-09-18 11:18 ` Igor Vlasenko
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