From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <46ACAB45.6080307@gmail.com> Date: Sun, 29 Jul 2007 16:59:17 +0200 From: Rene Herman MIME-Version: 1.0 Subject: Re: RFT: updatedb "morning after" problem [was: Re: -mm merge plans for 2.6.23] References: <9a8748490707231608h453eefffx68b9c391897aba70@mail.gmail.com> <46AA3680.4010508@gmail.com> <46AAEDEB.7040003@gmail.com> <46AB166A.2000300@gmail.com> <20070728122139.3c7f4290@the-village.bc.nu> <46AC4B97.5050708@gmail.com> <20070729141215.08973d54@the-village.bc.nu> <46AC9F2C.8090601@gmail.com> <2c0942db0707290758p39fef2e8o68d67bec5c7ba6ab@mail.gmail.com> In-Reply-To: <2c0942db0707290758p39fef2e8o68d67bec5c7ba6ab@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Ray Lee Cc: Alan Cox , david@lang.hm, Daniel Hazelton , Mike Galbraith , Andrew Morton , Ingo Molnar , Frank Kingswood , Andi Kleen , Nick Piggin , Jesper Juhl , ck list , Paul Jackson , linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: On 07/29/2007 04:58 PM, Ray Lee wrote: > On 7/29/07, Rene Herman wrote: >> On 07/29/2007 03:12 PM, Alan Cox wrote: >>> More radically if anyone wants to do real researchy type work - how about >>> log structured swap with a cleaner ? >> Right over my head. Why does log-structure help anything? > > Log structured disk layouts allow for better placement of writeout, so > that you cn eliminate most or all seeks. Seeks are the enemy when > trying to get full disk bandwidth. > > google on log structured disk layout, or somesuch, for details. I understand what log structure is generally, but how does it help swapin? Rene. -- 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