From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 24 Jan 2001 12:04:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 24 Jan 2001 12:04:24 -0500 Received: from tstac.esa.lanl.gov ([128.165.46.3]:34963 "EHLO tstac.esa.lanl.gov") by vger.kernel.org with ESMTP id ; Wed, 24 Jan 2001 12:04:12 -0500 From: Steven Cole Reply-To: scole@lanl.gov Date: Wed, 24 Jan 2001 10:03:41 -0700 X-Mailer: KMail [version 1.1.99] Content-Type: text/plain; charset="us-ascii" Cc: Marcelo Tosatti , lkml To: Jens Axboe In-Reply-To: <01012208583400.01639@spc.esa.lanl.gov> <01012409085700.02477@spc.esa.lanl.gov> <20010124174439.W16110@suse.de> In-Reply-To: <20010124174439.W16110@suse.de> Subject: Re: 2.4.1pre8 slowdown on dbench tests MIME-Version: 1.0 Message-Id: <01012410034100.03192@spc.esa.lanl.gov> Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday 24 January 2001 09:44, Jens Axboe wrote: > On Wed, Jan 24 2001, Steven Cole wrote: > > > Thanks! Could I talk you into doing one last run? pre8 with > > > include/linux/elevator.h having these values set for > > > ELEVATOR_LINUS: > > > > Here are two sets of dbench 48 runs with that mod. I can't explain why > > the second set is faster. The second set was performed with no reboot > > after the first set. The individual runs were performed with no wait > > in-between. > > Was this the 2.4.1-pre8x tree? Regardless, it's about back to the Yes, that kernel included the other change which was to blkdev.h which you suggested. I ran dbench 48 four more times right after the previous email. Here are those results, using exactly the same kernel (2.4.1-pre8 with changes to blkdev.h and elevator.h). Throughput 9.52243 MB/sec (NB=11.903 MB/sec 95.2243 MBit/sec) Throughput 9.98258 MB/sec (NB=12.4782 MB/sec 99.8258 MBit/sec) Throughput 9.41459 MB/sec (NB=11.7682 MB/sec 94.1459 MBit/sec) Throughput 9.23102 MB/sec (NB=11.5388 MB/sec 92.3102 MBit/sec) Steven - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/