From: "Dmitry V. Levin" <ldv@altlinux.org>
To: ALT Devel discussion list <devel@lists.altlinux.org>
Subject: [devel] Q: exit_group slowness
Date: Tue, 5 Jun 2012 01:11:17 +0400
Message-ID: <20120604211117.GA10184@altlinux.org> (raw)
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Hi,
Наблюдаю странный эффект:
$ time /usr/libexec/hasher-priv/hasher-priv chrootuid2 /tmp/.private/bee1/hasher/chroot /bin/true
0.00user 0.00system 0:08.61elapsed 0%CPU (0avgtext+0avgdata 3152maxresident)k
0inputs+0outputs (0major+321minor)pagefaults 0swaps
$ uname -rm
3.3.7-std-def-alt1 x86_64
Воспроизводимость 100%, разброс примерно от 2 до 16 секунд. С момента
запуска команды до момента завершения всех системных вызовов exit_group(0)
проходит 0 секунд, остальные несколько секунд уходят на то, чтобы
проинформировать parent (bash, strace) о завершении child'а (hasher-priv).
Кто-нибудь когда-нибудь сталкивался с чем-нибудь подобным?
--
ldv
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next reply other threads:[~2012-06-04 21:11 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-04 21:11 Dmitry V. Levin [this message]
2012-06-04 22:30 ` Kirill A. Shutemov
2012-06-05 0:20 ` Dmitry V. Levin
2012-06-05 6:06 ` Kirill A. Shutemov
2012-06-05 9:08 ` [devel] [partially solved] " Dmitry V. Levin
2012-06-05 12:37 ` Kirill A. Shutemov
2012-06-05 12:46 ` Dmitry V. Levin
2012-06-05 13:10 ` Kirill A. Shutemov
2012-06-06 1:31 ` Dmitry V. Levin
2012-06-06 18:40 ` Kirill A. Shutemov
2012-06-08 12:46 ` Kirill A. Shutemov
2012-06-08 15:31 ` Kirill A. Shutemov
2012-06-08 15:56 ` Dmitry V. Levin
2012-06-12 7:00 ` Kirill A. Shutemov
2012-06-13 0:32 ` Dmitry V. Levin
2012-08-10 19:41 ` Michael Shigorin
2012-06-04 22:35 ` [devel] " Led
2012-06-04 22:39 ` Kirill A. Shutemov
2012-06-04 22:47 ` Led
2012-06-06 8:43 ` Michael Shigorin
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