Received: (from majordomo@localhost) by oss.sgi.com (8.11.2/8.11.3) id g27LKfr17736 for linux-xfs-outgoing; Thu, 7 Mar 2002 13:20:41 -0800 Received: from thor.goeci.com (thor.goeci.com [216.181.40.16]) by oss.sgi.com (8.11.2/8.11.3) with SMTP id g27LKb917713 for ; Thu, 7 Mar 2002 13:20:37 -0800 Received: by THOR with Internet Mail Service (5.5.2650.21) id ; Thu, 7 Mar 2002 15:20:32 -0500 Message-ID: From: Murthy Kambhampaty To: "'Steve Lord'" Cc: linux-xfs@oss.sgi.com Subject: RE: Does XFS on hardware RAID5 have perfomance issues? Date: Thu, 7 Mar 2002 15:20:31 -0500 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linux-xfs@oss.sgi.com Precedence: bulk > From: Steve Lord [mailto:lord@sgi.com] > Sent: Thursday, March 07, 2002 14:49 ... > Subject: Re: Does XFS on hardware RAID5 have perfomance issues? ... > So I do not think it should matter. Let me guess, you do not like the > performance you are getting right now. We have a SuperMicro S2QR6 motherboard with four PIII Xeon 500 MHz/2Mb cache and 4gb RAM (call it comp1). I get kernel compile times that are thrice as long as on a dual PIII 550 Mhz Katmai processor with 256 MB of RAM (call it comp2); importing a file into MySQL seems to take almost 50% longer on comp1 than on comp2. So, I'm chasing down all the bottlenecks and trying to eliminate them. I thought the 2.4 kernel scaled well to sixteen processors, and there is no indication that the highmem configuration slows the kernel down this much, but I might have to get on the kernel mailing list with this. Thanks for the response to my original question, Murthy