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From: Balbir Singh <balbir@linux.vnet.ibm.com>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"nishimura@mxp.nes.nec.co.jp" <nishimura@mxp.nes.nec.co.jp>
Subject: Re: [RFC][PATCH 0/5] memcg: reduce lock conetion
Date: Fri, 28 Aug 2009 09:58:36 +0530	[thread overview]
Message-ID: <20090828042836.GD4889@balbir.in.ibm.com> (raw)
In-Reply-To: <20090828132015.10a42e40.kamezawa.hiroyu@jp.fujitsu.com>

* KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> [2009-08-28 13:20:15]:

> Hi,
> 
> Recently, memcg's res_counter->lock contention on big server is reported and
> Balbir wrote a workaround for root memcg.
> It's good but we need some fix for children, too.
> 
> This set is for reducing lock conetion of memcg's children cgroup based on mmotm-Aug27.
> 
> I'm sorry I have only 8cpu machine and can't reproduce very troublesome lock conention.
> Here is lock_stat of make -j 12 on my 8cpu box, befre-after this patch series.
>

Kamezawa-San,

I've been unable to get mmotm to boot (24th August, I'll try the 27th
Aug and debug). Once that is done, I'll test on a large machine.
 
-- 
	Balbir

WARNING: multiple messages have this Message-ID (diff)
From: Balbir Singh <balbir@linux.vnet.ibm.com>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"nishimura@mxp.nes.nec.co.jp" <nishimura@mxp.nes.nec.co.jp>
Subject: Re: [RFC][PATCH 0/5] memcg: reduce lock conetion
Date: Fri, 28 Aug 2009 09:58:36 +0530	[thread overview]
Message-ID: <20090828042836.GD4889@balbir.in.ibm.com> (raw)
In-Reply-To: <20090828132015.10a42e40.kamezawa.hiroyu@jp.fujitsu.com>

* KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> [2009-08-28 13:20:15]:

> Hi,
> 
> Recently, memcg's res_counter->lock contention on big server is reported and
> Balbir wrote a workaround for root memcg.
> It's good but we need some fix for children, too.
> 
> This set is for reducing lock conetion of memcg's children cgroup based on mmotm-Aug27.
> 
> I'm sorry I have only 8cpu machine and can't reproduce very troublesome lock conention.
> Here is lock_stat of make -j 12 on my 8cpu box, befre-after this patch series.
>

Kamezawa-San,

I've been unable to get mmotm to boot (24th August, I'll try the 27th
Aug and debug). Once that is done, I'll test on a large machine.
 
-- 
	Balbir

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  parent reply	other threads:[~2009-08-28  4:29 UTC|newest]

Thread overview: 71+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-08-28  4:20 [RFC][PATCH 0/5] memcg: reduce lock conetion KAMEZAWA Hiroyuki
2009-08-28  4:20 ` KAMEZAWA Hiroyuki
2009-08-28  4:23 ` [RFC][PATCH 1/5] memcg: change for softlimit KAMEZAWA Hiroyuki
2009-08-28  4:23   ` KAMEZAWA Hiroyuki
2009-08-28  7:20   ` Balbir Singh
2009-08-28  7:20     ` Balbir Singh
2009-08-28  7:35     ` KAMEZAWA Hiroyuki
2009-08-28  7:35       ` KAMEZAWA Hiroyuki
2009-08-28 13:26       ` Balbir Singh
2009-08-28 13:26         ` Balbir Singh
2009-08-28 14:29         ` KAMEZAWA Hiroyuki
2009-08-28 14:29           ` KAMEZAWA Hiroyuki
2009-08-28 14:40           ` KAMEZAWA Hiroyuki
2009-08-28 14:40             ` KAMEZAWA Hiroyuki
2009-08-28 14:46             ` Balbir Singh
2009-08-28 15:06               ` KAMEZAWA Hiroyuki
2009-08-28 15:06                 ` KAMEZAWA Hiroyuki
2009-08-28 15:08                 ` Balbir Singh
2009-08-28 15:08                   ` Balbir Singh
2009-08-28 15:12                   ` KAMEZAWA Hiroyuki
2009-08-28 15:12                     ` KAMEZAWA Hiroyuki
2009-08-28 15:15                     ` Balbir Singh
2009-08-28 15:15                       ` Balbir Singh
2009-08-28 14:45           ` Balbir Singh
2009-08-28 14:45             ` Balbir Singh
2009-08-28 14:58             ` KAMEZAWA Hiroyuki
2009-08-28 14:58               ` KAMEZAWA Hiroyuki
2009-08-28 15:07               ` Balbir Singh
2009-08-28 15:07                 ` Balbir Singh
2009-08-28  4:24 ` [RFC][PATCH 2/5] memcg: uncharge in batched manner KAMEZAWA Hiroyuki
2009-08-28  4:24   ` KAMEZAWA Hiroyuki
2009-08-28  4:53   ` KAMEZAWA Hiroyuki
2009-08-28  4:53     ` KAMEZAWA Hiroyuki
2009-08-28  4:55     ` KAMEZAWA Hiroyuki
2009-08-28  4:55       ` KAMEZAWA Hiroyuki
2009-08-28 15:10   ` Balbir Singh
2009-08-28 15:10     ` Balbir Singh
2009-08-28 15:21     ` KAMEZAWA Hiroyuki
2009-08-28 15:21       ` KAMEZAWA Hiroyuki
2009-08-28 16:03       ` Balbir Singh
2009-08-28 16:03         ` Balbir Singh
2009-08-31 11:02   ` Balbir Singh
2009-08-31 11:02     ` Balbir Singh
2009-08-31 11:59     ` KAMEZAWA Hiroyuki
2009-08-31 11:59       ` KAMEZAWA Hiroyuki
2009-08-31 12:10       ` Balbir Singh
2009-08-31 12:14         ` KAMEZAWA Hiroyuki
2009-08-31 12:14           ` KAMEZAWA Hiroyuki
2009-08-31 12:23           ` Balbir Singh
2009-08-31 14:36             ` KAMEZAWA Hiroyuki
2009-08-31 14:36               ` KAMEZAWA Hiroyuki
2009-08-28  4:25 ` [RFC][PATCH 3/5] memcg: unmap, truncate, invalidate uncharege in batch KAMEZAWA Hiroyuki
2009-08-28  4:25   ` KAMEZAWA Hiroyuki
2009-08-31 11:02   ` Balbir Singh
2009-08-31 11:02     ` Balbir Singh
2009-08-28  4:27 ` [RFC][PATCH 4/5] memcg: per-cpu charge stock KAMEZAWA Hiroyuki
2009-08-28  4:27   ` KAMEZAWA Hiroyuki
2009-08-31 11:10   ` Balbir Singh
2009-08-31 11:10     ` Balbir Singh
2009-08-31 12:07     ` KAMEZAWA Hiroyuki
2009-08-31 12:07       ` KAMEZAWA Hiroyuki
2009-08-28  4:28 ` [RFC][PATCH 5/5] memcg: drain per cpu stock KAMEZAWA Hiroyuki
2009-08-28  4:28   ` KAMEZAWA Hiroyuki
2009-08-31 11:11   ` Balbir Singh
2009-08-31 11:11     ` Balbir Singh
2009-08-31 12:09     ` KAMEZAWA Hiroyuki
2009-08-31 12:09       ` KAMEZAWA Hiroyuki
2009-08-28  4:28 ` Balbir Singh [this message]
2009-08-28  4:28   ` [RFC][PATCH 0/5] memcg: reduce lock conetion Balbir Singh
2009-08-28  4:33   ` KAMEZAWA Hiroyuki
2009-08-28  4:33     ` KAMEZAWA Hiroyuki

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