From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <17258.46930.407556.162321@cargo.ozlabs.ibm.com> Date: Fri, 4 Nov 2005 12:20:18 +1100 From: Paul Mackerras Subject: Re: [Lhms-devel] [PATCH 0/7] Fragmentation Avoidance V19 In-Reply-To: References: <4366C559.5090504@yahoo.com.au> <1130854224.14475.60.camel@localhost> <20051101142959.GA9272@elte.hu> <1130856555.14475.77.camel@localhost> <20051101150142.GA10636@elte.hu> <1130858580.14475.98.camel@localhost> <20051102084946.GA3930@elte.hu> <436880B8.1050207@yahoo.com.au> <1130923969.15627.11.camel@localhost> <43688B74.20002@yahoo.com.au> <255360000.1130943722@[10.10.2.4]> <4369824E.2020407@yahoo.com.au> <306020000.1131032193@[10.10.2.4]> <1131032422.2839.8.camel@laptopd505.fenrus.org> <309420000.1131036740@[10.10.2.4]> <311050000.1131040276@[10.10.2.4]> <1131040786.2839.18.camel@laptopd505.fenrus.org> <312300000.1131041824@[10.1! 0.2.4]> <436AB241.2030403@yahoo.com.au> Sender: owner-linux-mm@kvack.org Return-Path: To: Linus Torvalds Cc: Nick Piggin , "Martin J. Bligh" , Arjan van de Ven , Mel Gorman , Dave Hansen , Ingo Molnar , Andrew Morton , kravetz@us.ibm.com, linux-mm , Linux Kernel Mailing List , lhms , Arjan van de Ven List-ID: Linus Torvalds writes: > 64kB pages are _only_ usable for databases, nothing else. Actually people running HPC apps also like 64kB pages since their TLB misses go down significantly, and their data files tend to be large. Fileserving for windows boxes should also benefit, since both the executables and the data files that typical office applications on windows use are largish. I got a distribution of file sizes for a government department office and concluded that 64k pages would only bloat the page cache by a few percent for that case. Paul. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org