From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261987AbULPTBT (ORCPT ); Thu, 16 Dec 2004 14:01:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261985AbULPTBS (ORCPT ); Thu, 16 Dec 2004 14:01:18 -0500 Received: from rwcrmhc12.comcast.net ([216.148.227.85]:56487 "EHLO rwcrmhc12.comcast.net") by vger.kernel.org with ESMTP id S261989AbULPS6I (ORCPT ); Thu, 16 Dec 2004 13:58:08 -0500 Message-ID: <41C1DABF.2050004@namesys.com> Date: Thu, 16 Dec 2004 10:58:07 -0800 From: Hans Reiser User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.2) Gecko/20040803 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Marcelo Tosatti CC: Steve French , cliff white , linux-kernel@vger.kernel.org Subject: Re: cifs large write performance improvements to Samba References: <41BDC9CD.60504@austin.rr.com> <20041213092057.5bf773fb.cliffw@osdl.org> <41BDE0B4.6020003@austin.rr.com> <41BDE2CF.9060402@austin.rr.com> <20041216121151.GH8246@logos.cnet> In-Reply-To: <20041216121151.GH8246@logos.cnet> X-Enigmail-Version: 0.85.0.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Marcelo Tosatti wrote: > >> I have not seen anyone >>doing that on Linux in an automated fashion (e.g running iozone >>automated every time a new 2.6.x.rc on a half a dozen of the fs - simply >>to verify that things had not gotten drastically worse on a particular >>fs due to a bug or sideffect of a global VFS change). >> >> > >Yes, we definately need that. > > > Andrew Morton is saying that iozone does things real apps don't do, that is, it dirties mmap'd pages enough to swamp the machine. Do you guys agree or disagree with that? Reiser4 needs iozone optimization work which we haven't bothered with yet.