From: Mike Galbraith <efault@gmx.de>
To: Alexey Vlasov <renton@renton.name>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Attaching a process to cgroups
Date: Wed, 20 Jun 2012 14:28:18 +0200 [thread overview]
Message-ID: <1340195298.15707.3.camel@marge.simpson.net> (raw)
In-Reply-To: <20120619185856.GC31797@beaver>
On Tue, 2012-06-19 at 22:58 +0400, Alexey Vlasov wrote:
> Hi.
>
> Is it possible to somehow fasten a process of pid attaching to cgroup?
> The problem is the pid attaches to a task-file with some strange delay:
>
> 22:28:00.788224 open("/sys/fs/cgroup/memory/virtwww/w_test-l24-apache1_4bdf3d13/apache/tasks", O_WRONLY|O_CREAT|O_APPEND, 0666) = 3 <0.000035>
> 22:28:00.788289 fstat(3, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 <0.000004>
> 22:28:00.788326 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5e78074000 <0.000005>
> 22:28:00.788355 fstat(3, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 <0.000004>
> 22:28:00.788389 lseek(3, 0, SEEK_SET) = 0 <0.000004>
> 22:28:00.788426 write(3, "16317\n", 6) = 6 <0.128094>
> 22:28:00.916578 close(3) = 0 <0.000006>
kernel/cgroup.c::cgroup_attach_task()
{
...
synchronize_rcu();
...
}
next prev parent reply other threads:[~2012-06-20 12:28 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-19 18:58 Alexey Vlasov
2012-06-20 3:34 ` Daisuke Nishimura
2012-06-20 11:08 ` Alexey Vlasov
2012-06-20 12:28 ` Mike Galbraith [this message]
2012-06-21 7:54 ` Alexey Vlasov
2012-06-21 8:23 ` Mike Galbraith
2012-06-21 8:26 ` Mike Galbraith
2012-06-26 18:06 ` Paul E. McKenney
2012-06-27 7:23 ` Mike Galbraith
2012-06-27 17:10 ` Paul E. McKenney
2012-06-28 2:40 ` Mike Galbraith
2012-07-23 20:41 ` Andrea Righi
2012-07-24 1:19 ` Mike Galbraith
2012-07-25 13:36 ` Alexey Vlasov
2012-07-25 13:57 ` Mike Galbraith
2012-07-26 13:02 ` Alexey Vlasov
2012-07-26 14:44 ` Mike Galbraith
2012-08-08 16:40 ` Alexey Vlasov
2012-08-08 16:51 ` Paul E. McKenney
2012-08-10 9:53 ` Alexey Vlasov
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=1340195298.15707.3.camel@marge.simpson.net \
--to=efault@gmx.de \
--cc=linux-kernel@vger.kernel.org \
--cc=renton@renton.name \
/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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Powered by JetHome