Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264134AbTEGR1K (ORCPT ); Wed, 7 May 2003 13:27:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264135AbTEGR0a (ORCPT ); Wed, 7 May 2003 13:26:30 -0400 Received: from air-2.osdl.org ([65.172.181.6]:18138 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S264134AbTEGR00 (ORCPT ); Wed, 7 May 2003 13:26:26 -0400 Subject: Re: OSDL DBT-2 AS vs. Deadline 2.5.68-mm2 From: Mark Haverkamp To: Jens Axboe Cc: Mark Wong , akpm@digeo.com, linux-kernel , wli@holomorphy.com In-Reply-To: <20030507173637.GQ823@suse.de> References: <20030507164728.GO823@suse.de> <200305071659.h47GxmW22250@mail.osdl.org> <20030507173637.GQ823@suse.de> Content-Type: text/plain Organization: Message-Id: <1052329151.25135.14.camel@markh1.pdx.osdl.net> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.4 Date: 07 May 2003 10:39:11 -0700 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2468 Lines: 50 On Wed, 2003-05-07 at 10:36, Jens Axboe wrote: > On Wed, May 07 2003, markw@osdl.org wrote: > > On 7 May, Jens Axboe wrote: > > > On Wed, May 07 2003, markw@osdl.org wrote: > > >> I've collected some data from STP to see if it's useful or if there's > > >> anything else that would be useful to collect. I've got some tests > > >> queued up for the newer patches, but I wanted to put out what I had so > > >> far. > > >> > > >> > > >> METRICS OVER LAST 20 MINUTES: > > >> --------------- -------- ----- ---- -------- ----------------------------------- > > >> Kernel Elevator NOTPM CPU% Blocks/s URL > > >> --------------- -------- ----- ---- -------- ----------------------------------- > > >> 2.5.68-mm2 as 1155 94.3 8940.2 http://khack.osdl.org/stp/271356/ > > >> 2.5.68-mm2 deadline 1255 94.9 9598.7 http://khack.osdl.org/stp/271359/ > > >> > > >> FUNCTIONS SORTED BY TICKS: > > >> -- ------------------------- ------- ------------------------- ------- > > >> # as 2.5.68-mm2 ticks deadline 2.5.68-mm2 ticks > > >> -- ------------------------- ------- ------------------------- ------- > > >> 1 default_idle 6103428 default_idle 5359025 > > >> 2 bounce_copy_vec 86272 bounce_copy_vec 97696 > > >> 3 schedule 63819 schedule 70114 > > >> 4 __make_request 30397 __blk_queue_bounce 31167 > > >> 5 __blk_queue_bounce 26962 scsi_request_fn 26623 > > >> 6 scsi_request_fn 24845 __make_request 25012 > > > > > > uhh nasty, you are spending a lot of time bouncing. How much RAM is in > > > the machine, and what is the scsi hba? > > > > The system has 4GB of memory and has a DECchip 21554 (aacraid) that the > > external drives are connected to. Mark Haverkamp is currently trying to > > address those bounce buffers. > > aacraid actually looks sane enough. so you should just be able to set > host->highmem_io and it should work. That is what I thought, but I wanted to get a machine with lots of memory to try it out on. Mark. -- Mark Haverkamp - 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/