linux-kernel - Re: [PATCH 0/4] CGroup: Support for named and empty hierarchies

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Message-ID: <6599ad830907222237jcdac287tf4243e24024f8055@mail.gmail.com>
Date:	Wed, 22 Jul 2009 22:37:53 -0700
From:	Paul Menage <menage@...gle.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Cc:	akpm@...ux-foundation.org, lizf@...fujitsu.com,
	containers@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/4] CGroup: Support for named and empty hierarchies

On Wed, Jul 22, 2009 at 10:13 PM, KAMEZAWA
Hiroyuki<kamezawa.hiroyu@...fujitsu.com> wrote:
>
> Thank you. I'd like to look into procps package to allow
>
>  #ps -lf -cgroup=/xxxx/yyy
> or
>  #top -cgroup=/xxx/yyy
>

Wouldn't it be less invasive to change procps so that doing

ps <pid1> <pid2> ...

only actually looks at /proc/<pid1>, /proc/<pid2>, etc, rather than
looking at all of them and then throwing away any that aren't in the
supplied list?

Then you could do what you want with ps $(cat /dev/cgroup/xxxx/yyy/tasks)

Paul
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