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From: Paul Menage <paul@paulmenage.org>
To: Glauber Costa <glommer@parallels.com>
Cc: Greg Thelen <gthelen@google.com>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	containers@lists.osdl.org, netdev@vger.kernel.org,
	xemul@parallels.com, "David S. Miller" <davem@davemloft.net>,
	Hiroyouki Kamezawa <kamezawa.hiroyu@jp.fujitsu.com>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	Suleiman Souhlal <suleiman@google.com>,
	Lennart Poettering <lennart@poettering.net>
Subject: Re: [PATCH] per-cgroup tcp buffer limitation
Date: Tue, 13 Sep 2011 11:46:29 -0700	[thread overview]
Message-ID: <CALdu-PDGpBnVHW7E5NobAwtXop5c03NTmijkk8oB7u-a5LEXww@mail.gmail.com> (raw)
In-Reply-To: <4E6F9CC4.2000601@parallels.com>

On Tue, Sep 13, 2011 at 11:11 AM, Glauber Costa <glommer@parallels.com> wrote:
>
> What if they are all updated under the same lock ?

Right, that would be the kind of optimization that would remove the
need for worrying about whether or not to account it. It would
probably mean creating some memcg-specific structures like
res-counters that could handle multiple values, since you'd need to
update both the kernel charge and the total charge, in this cgroup
*and* its ancestors.

Paul

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  reply	other threads:[~2011-09-13 18:46 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-06  2:35 Glauber Costa
2011-09-06 10:00 ` KAMEZAWA Hiroyuki
2011-09-06 15:28   ` Glauber Costa
2011-09-06 22:52   ` Glauber Costa
2011-09-06 16:08 ` Greg Thelen
2011-09-06 16:16   ` Glauber Costa
2011-09-06 22:12     ` Greg Thelen
2011-09-06 22:37       ` Glauber Costa
2011-09-07 21:35         ` Greg Thelen
2011-09-08  4:44           ` Glauber Costa
2011-09-08 21:53             ` Greg Thelen
2011-09-09  4:17               ` Glauber Costa
2011-09-09 23:38                 ` Greg Thelen
2011-09-12 16:30                   ` Glauber Costa
2011-09-12  5:03                 ` Paul Menage
2011-09-12 16:57                   ` Glauber Costa
2011-09-13  6:56                     ` Greg Thelen
2011-09-13 18:09                     ` Paul Menage
2011-09-13 18:11                       ` Glauber Costa
2011-09-13 18:46                         ` Paul Menage [this message]
2011-09-13 19:08                           ` Glauber Costa
2011-09-07  2:38       ` Eric Dumazet
2011-09-07  1:08 ` Paul Menage
2011-09-07  1:09   ` Glauber Costa
2011-09-07  1:29     ` Paul Menage
2011-09-07  1:32       ` Glauber Costa
2011-09-09  0:18 ` Rick Jones

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