From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261767AbUBYXmp (ORCPT ); Wed, 25 Feb 2004 18:42:45 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261619AbUBYXjm (ORCPT ); Wed, 25 Feb 2004 18:39:42 -0500 Received: from fw.osdl.org ([65.172.181.6]:43666 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S261624AbUBYXg6 (ORCPT ); Wed, 25 Feb 2004 18:36:58 -0500 Message-Id: <200402252336.i1PNape32490@mail.osdl.org> To: Andrew Morton cc: cliff white , linux-kernel@vger.kernel.org, cliffw@osdl.org Subject: Re: reaim - 2.6.3-mm1 IO performance down. In-Reply-To: Your message of "Tue, 24 Feb 2004 17:03:37 PST." <20040224170337.798f5766.akpm@osdl.org> Date: Wed, 25 Feb 2004 15:36:51 -0800 From: Cliff White Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > cliff white wrote: > > > > For the same test on the same machine, results from 2.6.2-rc1-mm2 and 2.6.2 > -rc3-mm1 > > were within 1.0% of the linux-2.6.2 runs. So this is new. > > > > More data and tests if requested - are there some patch sets we should try > reverting? > > Thanks. You could try reverting adaptive-lazy-readahead.patch. If it is > not that I'd be suspecting CPU scheduler changes. Do you have uniprocessor > test results? adaptive-lazy-readahead reverted, not really much change here: Kernel Users JPM Run Time 2.6.3 60 10327.87 34.16 seconds 2.6.3-mm1 60 8279.75 42.61 seconds 2.6.3-mm1-noalr 60 7731.76 45.63 seconds 2.6.3 80 10275.23 45.78 seconds 2.6.3-mm1 80 7841.31 59.99 seconds 2.6.3-mm1-noalr 80 8565.19 54.92 seconds Full details, reaim tarball: http://developer.osdl.org/cliffw cliffw > > > - > 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/ >