Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265789AbUFWS2r (ORCPT ); Wed, 23 Jun 2004 14:28:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266598AbUFWS2r (ORCPT ); Wed, 23 Jun 2004 14:28:47 -0400 Received: from 82-147-17-1.dsl.uk.rapidplay.com ([82.147.17.1]:54355 "HELO 82-147-17-1.dsl.uk.rapidplay.com") by vger.kernel.org with SMTP id S265789AbUFWS2p (ORCPT ); Wed, 23 Jun 2004 14:28:45 -0400 From: Mark Watts To: linux-kernel@vger.kernel.org, ben@easynews.com Subject: Re: I/O Confirmation/Problem under 2.6/2.4 Date: Wed, 23 Jun 2004 19:28:43 +0100 User-Agent: KMail/1.6.1 References: <1088012966.1347.28.camel@solaris.skunkware.org> In-Reply-To: <1088012966.1347.28.camel@solaris.skunkware.org> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200406231928.43759.mrwatts@fast24.co.uk> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1999 Lines: 61 I get the following performance numbers from a Dell PowerEdge 1750 (2x Xeon) with a Perc 4/Di (megaraid driver). 13x U320 10k 146GB disks configured in a raid5 (in a PowerVault 220s external U320 enclosure). Kernel is 2.6.3 (Mandrake 10.0) # bonnie++ -u mwatts -d . Using uid:500, gid:500. Writing with putc()...done Writing intelligently...done Rewriting...done Reading with getc()...done Reading intelligently...done start 'em...done...done...done... Create files in sequential order...done. Stat files in sequential order...done. Delete files in sequential order...done. Create files in random order...done. Stat files in random order...done. Delete files in random order...done. Version 1.02c ------Sequential Output------ --Sequential Input- --Random- -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks-- Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP ircd.eris.qineti 4G 28774 99 89047 93 54483 21 34335 89 115549 20 575.2 1 ------Sequential Create------ --------Random Create-------- -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete-- files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP 16 2192 99 +++++ +++ +++++ +++ 2197 99 +++++ +++ 5526 99 ircd.eris.qinetiq.com,4G,28774,99,89047,93,54483,21,34335,89,115549,20,575.2,1,16,2192,99, +++++,+++,+++++,+++,2197,99,+++++,+++,5526,99 hdparm: # hdparm -tT /dev/sdb /dev/sdb: Timing buffer-cache reads: 2812 MB in 2.00 seconds = 1404.11 MB/sec Timing buffered disk reads: 294 MB in 3.00 seconds = 97.92 MB/sec I've been advised that the megaraid2 driver can be faster, but I've yet to try it. Mark. - 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/