From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Mosberger Date: Wed, 06 Apr 2005 07:32:50 +0000 Subject: Re: [Gelato-technical] Serious performance degradation on a RAID Message-Id: <16979.37026.139746.102031@napali.hpl.hp.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 Wed, 06 Apr 2005 09:29:59 +0200, Andreas Hirstius said: Andreas> Because of this strange correlation between block size and Andreas> page size and the fact, that I don't see a problem on x86 I Andreas> suspected an ia64-specific problem. My "favourite" Andreas> candidate is the conversion to 4 level pagetables between Andreas> 2.6.10-bk6 and 2.6.10-bk7. That's certainly a possibility. But didn't you say the problem also occurred when using 4KB page size on ia64? --david