Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S270772AbTGNUAf (ORCPT ); Mon, 14 Jul 2003 16:00:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S270773AbTGNUAG (ORCPT ); Mon, 14 Jul 2003 16:00:06 -0400 Received: from perninha.conectiva.com.br ([200.250.58.156]:51349 "EHLO perninha.conectiva.com.br") by vger.kernel.org with ESMTP id S270772AbTGNT5S (ORCPT ); Mon, 14 Jul 2003 15:57:18 -0400 Date: Mon, 14 Jul 2003 17:09:40 -0300 (BRT) From: Marcelo Tosatti X-X-Sender: marcelo@freak.distro.conectiva To: Jens Axboe Cc: Andrea Arcangeli , Chris Mason , lkml , "Stephen C. Tweedie" , Alan Cox , Jeff Garzik , Andrew Morton , Alexander Viro Subject: Re: RFC on io-stalls patch In-Reply-To: <20030714195138.GX833@suse.de> Message-ID: References: <20030710135747.GT825@suse.de> <1057932804.13313.58.camel@tiny.suse.com> <20030712073710.GK843@suse.de> <1058034751.13318.95.camel@tiny.suse.com> <20030713090116.GU843@suse.de> <20030713191921.GI16313@dualathlon.random> <20030714054918.GD843@suse.de> <20030714131206.GJ833@suse.de> <20030714195138.GX833@suse.de> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2065 Lines: 44 On Mon, 14 Jul 2003, Jens Axboe wrote: > Some initial results with the attached patch, I'll try and do some more > fine grained tomorrow. Base kernel was 2.4.22-pre5 (obviously), drive > tested is a SCSI drive (on aic7xxx, tcq fixed at 4), fs is ext3. I would > have done ide testing actually, but the drive in that machine appears to > have gone dead. I'll pop in a new one tomorrow and test on that too. > > no_load: > Kernel [runs] Time CPU% Loads LCPU% Ratio > 2.4.22-pre5 2 134 196.3 0.0 0.0 1.00 > 2.4.22-pre5-axboe 3 133 196.2 0.0 0.0 1.00 > ctar_load: > Kernel [runs] Time CPU% Loads LCPU% Ratio > 2.4.22-pre5 3 235 114.0 25.0 22.1 1.75 > 2.4.22-pre5-axboe 3 194 138.1 19.7 20.6 1.46 > xtar_load: > Kernel [runs] Time CPU% Loads LCPU% Ratio > 2.4.22-pre5 3 309 86.4 15.0 14.9 2.31 > 2.4.22-pre5-axboe 3 249 107.2 11.3 14.1 1.87 > io_load: > Kernel [runs] Time CPU% Loads LCPU% Ratio > 2.4.22-pre5 3 637 42.5 120.2 18.5 4.75 > 2.4.22-pre5-axboe 3 540 50.0 103.0 18.1 4.06 > io_other: > Kernel [runs] Time CPU% Loads LCPU% Ratio > 2.4.22-pre5 3 576 47.2 107.7 19.8 4.30 > 2.4.22-pre5-axboe 3 452 59.7 85.3 19.5 3.40 > read_load: > Kernel [runs] Time CPU% Loads LCPU% Ratio > 2.4.22-pre5 3 150 181.3 8.1 9.3 1.12 > 2.4.22-pre5-axboe 3 152 178.9 8.2 9.9 1.14 Awesome. I'll add it in -pre6. Thanks a lot Jens. - 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/