From: Balbir Singh <balbir@linux.vnet.ibm.com>
To: Prarit Bhargava <prarit@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
"nishimura@mxp.nes.nec.co.jp" <nishimura@mxp.nes.nec.co.jp>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
"menage@google.com" <menage@google.com>,
andi.kleen@intel.com, Pavel Emelianov <xemul@openvz.org>,
"lizf@cn.fujitsu.com" <lizf@cn.fujitsu.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: Help Resource Counters Scale better (v4)
Date: Tue, 11 Aug 2009 20:30:57 +0530 [thread overview]
Message-ID: <20090811150057.GY7176@balbir.in.ibm.com> (raw)
In-Reply-To: <4A81863A.2050504@redhat.com>
* Prarit Bhargava <prarit@redhat.com> [2009-08-11 10:54:50]:
>
>
> Balbir Singh wrote:
>> Enhancement: Remove the overhead of root based resource counter accounting
>>
>>
>>
>
> <snip>
>> Please test/review.
>>
>>
> FWIW ...
>
Thanks for the testing!
> On a 64p/32G system running 2.6.31-git2-rc5, with RESOURCE_COUNTERS off,
> "time make -j64" results in
>
> real 4m54.972s
> user 90m13.456s
> sys 50m19.711s
>
> On the same system, running 2.6.31-git2-rc5, with RESOURCE_COUNTERS on,
> plus Balbir's "Help Resource Counters Scale Better (v3)" patch, and this
^^^
you mean (v4) right?
> patch, results in
>
> real 4m18.607s
> user 84m58.943s
> sys 50m52.682s
>
Without the patch and RESOURCE_COUNTERS do you see a big overhead. I'd
assume so, I am seeing it on my 24 way box that I have access to.
--
Balbir
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next prev parent reply other threads:[~2009-08-11 15:01 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-11 14:44 Balbir Singh
2009-08-11 14:54 ` Prarit Bhargava
2009-08-11 15:00 ` Balbir Singh [this message]
2009-08-11 15:11 ` Prarit Bhargava
2009-08-11 15:14 ` Prarit Bhargava
2009-08-11 15:20 ` Andi Kleen
2009-08-11 15:21 ` Prarit Bhargava
2009-08-11 16:52 ` Balbir Singh
2009-08-11 23:31 ` Andrew Morton
2009-08-12 2:34 ` Daisuke Nishimura
2009-08-12 3:56 ` Balbir Singh
2009-08-12 3:57 ` Balbir Singh
2009-08-12 4:57 ` [PATCH] Help Resource Counters Scale better (v4.1) Balbir Singh
2009-08-12 10:53 ` Prarit Bhargava
2009-08-12 16:19 ` KAMEZAWA Hiroyuki
2009-08-12 16:28 ` KAMEZAWA Hiroyuki
2009-08-12 17:19 ` Balbir Singh
2009-08-13 1:03 ` Daisuke Nishimura
2009-08-13 3:33 ` Balbir Singh
2009-08-13 5:08 ` Daisuke Nishimura
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