From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail202.messagelabs.com (mail202.messagelabs.com [216.82.254.227]) by kanga.kvack.org (Postfix) with SMTP id 7006D6B004A for ; Mon, 18 Oct 2010 20:50:40 -0400 (EDT) Received: from m2.gw.fujitsu.co.jp ([10.0.50.72]) by fgwmail7.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id o9J0obgF029401 for (envelope-from kamezawa.hiroyu@jp.fujitsu.com); Tue, 19 Oct 2010 09:50:37 +0900 Received: from smail (m2 [127.0.0.1]) by outgoing.m2.gw.fujitsu.co.jp (Postfix) with ESMTP id 8B26A45DE61 for ; Tue, 19 Oct 2010 09:50:37 +0900 (JST) Received: from s2.gw.fujitsu.co.jp (s2.gw.fujitsu.co.jp [10.0.50.92]) by m2.gw.fujitsu.co.jp (Postfix) with ESMTP id 6503845DE55 for ; Tue, 19 Oct 2010 09:50:37 +0900 (JST) Received: from s2.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s2.gw.fujitsu.co.jp (Postfix) with ESMTP id 4BE871DB803C for ; Tue, 19 Oct 2010 09:50:37 +0900 (JST) Received: from ml13.s.css.fujitsu.com (ml13.s.css.fujitsu.com [10.249.87.103]) by s2.gw.fujitsu.co.jp (Postfix) with ESMTP id F2FBC1DB803A for ; Tue, 19 Oct 2010 09:50:36 +0900 (JST) Date: Tue, 19 Oct 2010 09:45:12 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [PATCH v3 04/11] memcg: add lock to synchronize page accounting and migration Message-Id: <20101019094512.11eabc62.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <1287448784-25684-5-git-send-email-gthelen@google.com> References: <1287448784-25684-1-git-send-email-gthelen@google.com> <1287448784-25684-5-git-send-email-gthelen@google.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: Greg Thelen Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, containers@lists.osdl.org, Andrea Righi , Balbir Singh , Daisuke Nishimura , Minchan Kim , Ciju Rajan K , David Rientjes List-ID: On Mon, 18 Oct 2010 17:39:37 -0700 Greg Thelen wrote: > Performance Impact: moving a 8G anon process. > > Before: > real 0m0.792s > user 0m0.000s > sys 0m0.780s > > After: > real 0m0.854s > user 0m0.000s > sys 0m0.842s > > This score is bad but planned patches for optimization can reduce > this impact. > I'll post optimization patches after this set goes to -mm. RFC version will be posted soon. 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