From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932460AbXGKM1S (ORCPT ); Wed, 11 Jul 2007 08:27:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757677AbXGKM1K (ORCPT ); Wed, 11 Jul 2007 08:27:10 -0400 Received: from ag-out-0708.google.com ([72.14.246.251]:27984 "EHLO ag-out-0708.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756696AbXGKM1J (ORCPT ); Wed, 11 Jul 2007 08:27:09 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:date:from:to:cc:subject:message-id:in-reply-to:references:x-mailer:mime-version:content-type; b=SYVaYRM9ZSZYezFkj9U2EJGOC4YMCmdFB9wLxpZmj2LnNeFcQqr6VtvH9qaRVwHA08wHpNk3iG+yzVDlrMg5+qIOh5AQ9D1s98541RTcM+X/1vexZfLagz6jCLYEB48UfWzFo5te1n7RHNwgB3ZaRNJkcR2aqq/5XGzwcS81Utc= Date: Wed, 11 Jul 2007 09:26:58 -0300 From: Kevin Winchester To: Andrew Morton Cc: "Matthew Hawkins" , "Con Kolivas" , "ck list" , "Ingo Molnar" , "Paul Jackson" , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [ck] Re: -mm merge plans for 2.6.23 Message-Id: <20070711092658.645023b9.kjwinchester@gmail.com> In-Reply-To: <20070710181419.6d1b2f7e.akpm@linux-foundation.org> References: <20070710013152.ef2cd200.akpm@linux-foundation.org> <200707102015.44004.kernel@kolivas.org> <20070710181419.6d1b2f7e.akpm@linux-foundation.org> X-Mailer: Sylpheed 2.4.3 (GTK+ 2.11.5; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: multipart/signed; protocol="application/pgp-signature"; micalg="PGP-SHA1"; boundary="Signature=_Wed__11_Jul_2007_09_26_58_-0300_kP.9Jx2_N8V1N9lE" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --Signature=_Wed__11_Jul_2007_09_26_58_-0300_kP.9Jx2_N8V1N9lE Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, 10 Jul 2007 18:14:19 -0700 Andrew Morton wrote: > On Wed, 11 Jul 2007 11:02:56 +1000 "Matthew Hawkins" = wrote: >=20 > > We all know swap prefetch has been tested out the wazoo since Moses was= a > > little boy, is compile-time and runtime selectable, and gives an import= ant > > and quantifiable performance increase to desktop systems. >=20 > Always interested. Please provide us more details on your usage and > testing of that code. Amount of memory, workload, observed results, > etc? >=20 I only have 512 MB of memory on my Athlon64 desktop box, and I switch betwe= en -mm and mainline kernels regularly. I have noticed that -mm is always m= uch more responsive, especially first thing in the morning. I believe this= has been due to the new schedulers in -mm (because I notice an improvement= in mainline now that CFS has been merged), as well as swap prefetch. I ha= ven't tested swap prefetch alone to know for sure, but it seems pretty like= ly. My workload is compiling kernels, with sylpheed, pidgin and firefox[1] open= , and sometimes MonoDevelop if I want to slow my system to a crawl. I will be getting another 512 MB of RAM at Christmas time, but from the oth= er reports, it seems that swap prefetch will still be useful. [1] Is there a graphical browser for linux that doesn't suck huge amounts o= f RAM? --=20 Kevin Winchester --Signature=_Wed__11_Jul_2007_09_26_58_-0300_kP.9Jx2_N8V1N9lE Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFGlMyXKPGFQbiQ3tQRApQiAJ0ef9OKRssy6Sppc3l8B+tyGiLf1wCfUqBI /QAl7d0HbCfZgECvIWZa+x8= =Uck0 -----END PGP SIGNATURE----- --Signature=_Wed__11_Jul_2007_09_26_58_-0300_kP.9Jx2_N8V1N9lE--