ALT Linux Team development discussions
 help / color / mirror / Atom feed
From: Led <ledest@gmail.com>
To: ALT Linux Team development discussions <devel@lists.altlinux.org>
Subject: Re: [devel] Q: exit_group slowness
Date: Tue, 5 Jun 2012 01:47:11 +0300
Message-ID: <201206050147.11566.ledest@gmail.com> (raw)
In-Reply-To: <20120604223928.GB10007@shutemov.name>



On Tuesday 05 June 2012 01:39:29 Kirill A. Shutemov wrote:
> On Tue, Jun 05, 2012 at 01:35:36AM +0300, Led wrote:
> > On Tuesday 05 June 2012 00:11:17 Dmitry V. Levin wrote:
> > > 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?
> >
> > А
> > grep cgroup /proc/mounts
> > при этом пустой?
>
> А как это может быть связано?

Не знаю. Но у меня была завидная повторяемость: стОит смонтировать cgroup и hasher становится неюзабельным. 
Размонтрование cgroup не помогает - только ребут.

-- 
Led

  reply	other threads:[~2012-06-04 22:47 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-04 21:11 Dmitry V. Levin
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 [this message]
2012-06-06  8:43 ` Michael Shigorin

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=201206050147.11566.ledest@gmail.com \
    --to=ledest@gmail.com \
    --cc=devel@lists.altlinux.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

ALT Linux Team development discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror http://lore.altlinux.org/devel/0 devel/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 devel devel/ http://lore.altlinux.org/devel \
		devel@altlinux.org devel@altlinux.ru devel@lists.altlinux.org devel@lists.altlinux.ru devel@linux.iplabs.ru mandrake-russian@linuxteam.iplabs.ru sisyphus@linuxteam.iplabs.ru
	public-inbox-index devel

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://lore.altlinux.org/org.altlinux.lists.devel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git