From: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
To: Greg Thelen <gthelen@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
containers@lists.osdl.org, Andrea Righi <arighi@develer.com>,
Balbir Singh <balbir@linux.vnet.ibm.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Minchan Kim <minchan.kim@gmail.com>,
Ciju Rajan K <ciju@linux.vnet.ibm.com>,
David Rientjes <rientjes@google.com>,
Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Subject: Re: [PATCH v3 09/11] memcg: add cgroupfs interface to memcg dirty limits
Date: Wed, 20 Oct 2010 12:46:59 +0900 [thread overview]
Message-ID: <20101020124659.526ce56c.nishimura@mxp.nes.nec.co.jp> (raw)
In-Reply-To: <20101020123110.fd269ab4.nishimura@mxp.nes.nec.co.jp>
On Wed, 20 Oct 2010 12:31:10 +0900
Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> wrote:
> On Mon, 18 Oct 2010 17:39:42 -0700
> Greg Thelen <gthelen@google.com> wrote:
>
> > Add cgroupfs interface to memcg dirty page limits:
> > Direct write-out is controlled with:
> > - memory.dirty_ratio
> > - memory.dirty_limit_in_bytes
> >
> > Background write-out is controlled with:
> > - memory.dirty_background_ratio
> > - memory.dirty_background_limit_bytes
> >
> > Other memcg cgroupfs files support 'M', 'm', 'k', 'K', 'g'
> > and 'G' suffixes for byte counts. This patch provides the
> > same functionality for memory.dirty_limit_in_bytes and
> > memory.dirty_background_limit_bytes.
> >
> > Signed-off-by: Andrea Righi <arighi@develer.com>
> > Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com>
> > Signed-off-by: Greg Thelen <gthelen@google.com>
>
> Acked-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
>
> One question: shouldn't we return -EINVAL when writing to dirty(_background)_limit_bytes
> a bigger value than that of global one(if any) ? Or do you intentionally
> set the input value without comparing it with the global value ?
> But, hmm..., IMHO we should check it in __mem_cgroup_dirty_param() or something
> not to allow dirty pages more than global limit.
>
Oh, Kamazawa-san has just send a fix for this problem :)
Please ignore this comment.
Thanks,
Daisuke Nishimura.
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next prev parent reply other threads:[~2010-10-20 3:48 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-19 0:39 [PATCH v3 00/11] memcg: per cgroup dirty page accounting Greg Thelen
2010-10-19 0:39 ` [PATCH v3 01/11] memcg: add page_cgroup flags for dirty page tracking Greg Thelen
2010-10-19 4:31 ` Daisuke Nishimura
2010-10-19 0:39 ` [PATCH v3 02/11] memcg: document cgroup dirty memory interfaces Greg Thelen
2010-10-19 0:46 ` KAMEZAWA Hiroyuki
2010-10-19 8:27 ` Daisuke Nishimura
2010-10-19 21:00 ` Greg Thelen
2010-10-20 0:11 ` KAMEZAWA Hiroyuki
2010-10-20 0:45 ` Greg Thelen
2010-10-20 4:06 ` KAMEZAWA Hiroyuki
2010-10-20 4:25 ` Greg Thelen
2010-10-20 4:26 ` KAMEZAWA Hiroyuki
2010-10-20 0:48 ` Daisuke Nishimura
2010-10-20 1:14 ` KAMEZAWA Hiroyuki
2010-10-20 2:24 ` KAMEZAWA Hiroyuki
2010-10-20 3:47 ` Daisuke Nishimura
2010-10-19 0:39 ` [PATCH v3 03/11] memcg: create extensible page stat update routines Greg Thelen
2010-10-19 0:47 ` KAMEZAWA Hiroyuki
2010-10-19 4:52 ` Daisuke Nishimura
2010-10-19 0:39 ` [PATCH v3 04/11] memcg: add lock to synchronize page accounting and migration Greg Thelen
2010-10-19 0:45 ` KAMEZAWA Hiroyuki
2010-10-19 4:43 ` [RFC][PATCH 1/2] memcg: move_account optimization by reduct put,get page (Re: " KAMEZAWA Hiroyuki
2010-10-19 4:45 ` [RFC][PATCH 2/2] memcg: move_account optimization by reduce locks " KAMEZAWA Hiroyuki
2010-10-19 1:17 ` Minchan Kim
2010-10-19 5:03 ` Daisuke Nishimura
2010-10-19 0:39 ` [PATCH v3 05/11] memcg: add dirty page accounting infrastructure Greg Thelen
2010-10-19 0:49 ` KAMEZAWA Hiroyuki
2010-10-20 0:53 ` Daisuke Nishimura
2010-10-19 0:39 ` [PATCH v3 06/11] memcg: add kernel calls for memcg dirty page stats Greg Thelen
2010-10-19 0:51 ` KAMEZAWA Hiroyuki
2010-10-19 7:03 ` Daisuke Nishimura
2010-10-19 0:39 ` [PATCH v3 07/11] memcg: add dirty limits to mem_cgroup Greg Thelen
2010-10-19 0:53 ` KAMEZAWA Hiroyuki
2010-10-20 0:50 ` Daisuke Nishimura
2010-10-20 4:08 ` Greg Thelen
2010-10-19 0:39 ` [PATCH v3 08/11] memcg: CPU hotplug lockdep warning fix Greg Thelen
2010-10-19 0:54 ` KAMEZAWA Hiroyuki
2010-10-20 3:47 ` Daisuke Nishimura
2010-10-19 0:39 ` [PATCH v3 09/11] memcg: add cgroupfs interface to memcg dirty limits Greg Thelen
2010-10-19 0:56 ` KAMEZAWA Hiroyuki
2010-10-20 3:31 ` Daisuke Nishimura
2010-10-20 3:44 ` KAMEZAWA Hiroyuki
2010-10-20 3:46 ` Daisuke Nishimura [this message]
2010-10-19 0:39 ` [PATCH v3 10/11] writeback: make determine_dirtyable_memory() static Greg Thelen
2010-10-19 0:57 ` KAMEZAWA Hiroyuki
2010-10-20 3:47 ` Daisuke Nishimura
2010-10-19 0:39 ` [PATCH v3 11/11] memcg: check memcg dirty limits in page writeback Greg Thelen
2010-10-19 1:00 ` KAMEZAWA Hiroyuki
2010-10-20 4:18 ` KAMEZAWA Hiroyuki
2010-10-20 4:33 ` Greg Thelen
2010-10-20 4:33 ` KAMEZAWA Hiroyuki
2010-10-20 4:34 ` Daisuke Nishimura
2010-10-20 5:25 ` Daisuke Nishimura
2010-10-20 3:21 ` [PATCH][memcg+dirtylimit] Fix overwriting global vm dirty limit setting by memcg (Re: [PATCH v3 00/11] memcg: per cgroup dirty page accounting KAMEZAWA Hiroyuki
2010-10-20 4:14 ` KAMEZAWA Hiroyuki
2010-10-20 5:02 ` [PATCH v2][memcg+dirtylimit] " KAMEZAWA Hiroyuki
2010-10-20 6:09 ` Daisuke Nishimura
2010-10-20 14:35 ` Minchan Kim
2010-10-21 0:10 ` KAMEZAWA Hiroyuki
2010-10-24 18:44 ` Greg Thelen
2010-10-25 0:24 ` KAMEZAWA Hiroyuki
2010-10-25 2:00 ` Daisuke Nishimura
2010-10-25 7:03 ` Ciju Rajan K
2010-10-25 7:08 ` KAMEZAWA Hiroyuki
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