Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757482AbYG2NFF (ORCPT ); Tue, 29 Jul 2008 09:05:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752422AbYG2NEz (ORCPT ); Tue, 29 Jul 2008 09:04:55 -0400 Received: from fgwmail7.fujitsu.co.jp ([192.51.44.37]:43481 "EHLO fgwmail7.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752011AbYG2NEz (ORCPT ); Tue, 29 Jul 2008 09:04:55 -0400 Date: Tue, 29 Jul 2008 22:04:16 +0900 From: KOSAKI Motohiro To: Rik van Riel Subject: Re: PERF: performance tests with the split LRU VM in -mm Cc: kosaki.motohiro@jp.fujitsu.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, akpm@linux-foundation.org In-Reply-To: <20080724222510.3bbbbedc@bree.surriel.com> References: <20080724222510.3bbbbedc@bree.surriel.com> Message-Id: <20080729220012.F192.KOSAKI.MOTOHIRO@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Mailer: Becky! ver. 2.42 [ja] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 758 Lines: 26 > TEST 1: dd if=/dev/sda of=/dev/null bs=1M > > kernel speed swap used > > 2.6.26 111MB/s 500kB > -mm 110MB/s 59MB (ouch, system noticably slower) > noforce 111MB/s 128kB > stream 108MB/s 0 (slight regression, not sure why yet) I tried to reproduce it, my ia64 result was kernel speed swap used 2.6.26-rc8 49.8MB/s 1M 2.6.26-rc8-mm1 47.6MB/s 168M -mm with above two patch 50.2MB/s 0 So, I think it isn't regression. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/