Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932997AbXB0LbI (ORCPT ); Tue, 27 Feb 2007 06:31:08 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933013AbXB0LbI (ORCPT ); Tue, 27 Feb 2007 06:31:08 -0500 Received: from agminet01.oracle.com ([141.146.126.228]:62717 "EHLO agminet01.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932997AbXB0LbG (ORCPT ); Tue, 27 Feb 2007 06:31:06 -0500 Date: Tue, 27 Feb 2007 12:29:08 +0100 From: Jens Axboe To: Evgeniy Polyakov Cc: Suparna Bhattacharya , Ingo Molnar , linux-kernel@vger.kernel.org, Linus Torvalds , Arjan van de Ven , Christoph Hellwig , Andrew Morton , Alan Cox , Ulrich Drepper , Zach Brown , "David S. Miller" , Davide Libenzi , Thomas Gleixner Subject: Re: A quick fio test (was Re: [patch 00/13] Syslets, "Threadlets", generic AIO support, v3) Message-ID: <20070227112908.GB4271@kernel.dk> References: <20070223145826.GA32465@elte.hu> <20070223151515.GA12960@in.ibm.com> <20070223162508.GA16782@kernel.dk> <20070223171348.GA27838@in.ibm.com> <20070226135736.GF3822@kernel.dk> <20070226141315.GA15631@in.ibm.com> <20070226144548.GH3822@kernel.dk> <20070227043331.GA29942@in.ibm.com> <20070227094211.GR3822@kernel.dk> <20070227111258.GA19125@2ka.mipt.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070227111258.GA19125@2ka.mipt.ru> X-Brightmail-Tracker: AAAAAQAAAAI= X-Whitelist: TRUE Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1331 Lines: 48 On Tue, Feb 27 2007, Evgeniy Polyakov wrote: > My two coins: > # cat job > [global] > bs=8k > size=1g > direct=0 > ioengine=sync > iodepth=32 > rw=read > > [file] > filename=/home/user/test > > sync: > READ: io=1,024MiB, aggrb=39,329KiB/s, minb=39,329KiB/s, > maxb=39,329KiB/s, mint=27301msec, maxt=27301msec > > libaio: > READ: io=1,024MiB, aggrb=39,435KiB/s, minb=39,435KiB/s, > maxb=39,435KiB/s, mint=27228msec, maxt=27228msec > > syslet-rw: > READ: io=1,024MiB, aggrb=29,567KiB/s, minb=29,567KiB/s, > maxb=29,567KiB/s, mint=36315msec, maxt=36315msec > > During syslet-rw test about 9500 async schduledes happend. > I use fio-git-20070226150114.tar.gz That looks pretty pathetic :-). What IO scheduler did you use? syslets will confuse CFQ currently, so you want to compare with using eg deadline or as. That is one of the downsides of this approach. I'll try your test as soon as this bisect series is done. > P.S. Jens, fio_latest.tar.gz has wrong permissions, it can not be > opened. Oh thanks, indeed. It was disabled symlinks that broke it. Fixed now. -- Jens Axboe - 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/