From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Chen, Kenneth W" Date: Wed, 06 Apr 2005 05:56:00 +0000 Subject: RE: [Gelato-technical] Serious performance degradation on a RAID withkernel 2.6.11 Message-Id: <200504060556.j365u0g24048@unix-os.sc.intel.com> List-Id: References: <16978.62532.841151.100745@napali.hpl.hp.com> In-Reply-To: <16978.62532.841151.100745@napali.hpl.hp.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org On Tue, Apr 05, 2005 at 09:45:34PM -0700, David Mosberger wrote: > > Did you compile the driver as a module? Duraid Madina wrote on Tuesday, April 05, 2005 9:53 PM > Nope. You're not seeing the problem? That is the reason for the performance problem. And this is definitely *not* ia64 specific. See this discussion which started with performance problem seen on opteron and reproduced on DELL machine as well. http://marc.theaimsgroup.com/?t1028927300002&r=1&w=2 The changeset that david pointed out is the right fix. Or you can just take the small patch I posted in the above thread. - Ken