From mboxrd@z Thu Jan 1 00:00:00 1970 From: Grant Grundler Date: Wed, 30 Jul 2003 18:51:33 +0000 Subject: Re: EXT2_MAX_BLOCK_LOG_SIZE increase? Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org On Wed, Jul 30, 2003 at 02:21:02PM -0400, Theodore Ts'o wrote: > I'd be interested in benchmark runs comparing 4k, 8k, 16k, 32k, and > 64k, if you would, please. vary kernel page size or ext2 block size or both together? re-aim-7 benchmark or something different? (and please don't say "dbench" :^) 32k is not possible in the kernel. Could use 64k. Two of the re-aim-7 (aka osdl-aim-7) results (4k and 16k) are posted on lkml and I can resend if I get a private request. I'm going to be in transit or offline alot of the next 2 weeks. Not likely I'll be able to generate the additional numbers. Other volunteers? I'm happy to share the s3kr3T osdl-aim-7 sauce recipe. And I'd really just like to prove if VMERGE code in the BIO layer is useful or not. I've concluded it's not useful for 53c1030. I think it's more interesting to measure 53c1010. > Was any patches necessary for the ia64 kernel before the block sizes > > 8k started working for you? nope. :^) Just twiddle the CONFIG_IA64_PAGE_SIZE_* parameters if one wants 64KB. 16KB is the default. thanks, grant