From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail190.messagelabs.com (mail190.messagelabs.com [216.82.249.51]) by kanga.kvack.org (Postfix) with SMTP id 7282A6B004F for ; Tue, 11 Aug 2009 10:57:17 -0400 (EDT) Message-ID: <4A81863A.2050504@redhat.com> Date: Tue, 11 Aug 2009 10:54:50 -0400 From: Prarit Bhargava MIME-Version: 1.0 Subject: Re: Help Resource Counters Scale better (v4) References: <20090811144405.GW7176@balbir.in.ibm.com> In-Reply-To: <20090811144405.GW7176@balbir.in.ibm.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: balbir@linux.vnet.ibm.com Cc: Andrew Morton , KAMEZAWA Hiroyuki , "nishimura@mxp.nes.nec.co.jp" , KOSAKI Motohiro , "menage@google.com" , andi.kleen@intel.com, Pavel Emelianov , "lizf@cn.fujitsu.com" , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" List-ID: Balbir Singh wrote: > Enhancement: Remove the overhead of root based resource counter accounting > > > > Please test/review. > > FWIW ... 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 patch, results in real 4m18.607s user 84m58.943s sys 50m52.682s P. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org