From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 9 Sep 2008 20:11:15 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [RFC][PATCH 6/14] memcg: lockless page cgroup Message-Id: <20080909201115.b87f9bdb.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20080909171154.f3cfdfd6.nishimura@mxp.nes.nec.co.jp> References: <20080822202720.b7977aab.kamezawa.hiroyu@jp.fujitsu.com> <20080822203551.598a263c.kamezawa.hiroyu@jp.fujitsu.com> <20080909144007.48e6633a.nishimura@mxp.nes.nec.co.jp> <20080909165608.878d7182.kamezawa.hiroyu@jp.fujitsu.com> <20080909171154.f3cfdfd6.nishimura@mxp.nes.nec.co.jp> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Daisuke Nishimura Cc: "linux-mm@kvack.org" , "balbir@linux.vnet.ibm.com" List-ID: On Tue, 9 Sep 2008 17:11:54 +0900 Daisuke Nishimura wrote: > > I'm sorry to say that I'll have to postpone this to remove > > page->page_cgroup pointer. I need some more performance-improvement > > effort to remove page->page_cgroup pointer without significant overhead. > > > No problem. I know about that :) > This is the latest result of lockless series. (on rc5-mmtom) (Don't trust shell script result...it seems too slow.) ==on 2cpu/1socket x86-64 host== rc5-mm1 == Execl Throughput 3006.5 lps (29.8 secs, 3 samples) C Compiler Throughput 1006.7 lpm (60.0 secs, 3 samples) Shell Scripts (1 concurrent) 4863.7 lpm (60.0 secs, 3 samples) Shell Scripts (8 concurrent) 943.7 lpm (60.0 secs, 3 samples) Shell Scripts (16 concurrent) 482.7 lpm (60.0 secs, 3 samples) Dc: sqrt(2) to 99 decimal places 124804.9 lpm (30.0 secs, 3 samples) lockless == Execl Throughput 3035.5 lps (29.6 secs, 3 samples) C Compiler Throughput 1010.3 lpm (60.0 secs, 3 samples) Shell Scripts (1 concurrent) 4881.0 lpm (60.0 secs, 3 samples) Shell Scripts (8 concurrent) 947.7 lpm (60.0 secs, 3 samples) Shell Scripts (16 concurrent) 485.0 lpm (60.0 secs, 3 samples) Dc: sqrt(2) to 99 decimal places 125437.9 lpm (30.0 secs, 3 samples) == I'll try to build "remove-page-cgroup-pointer" patch on this and see what happens tomorrow. (And I think my 8cpu box will come back.. Thanks, -Kame -- 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