Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261919AbTFBFxQ (ORCPT ); Mon, 2 Jun 2003 01:53:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261928AbTFBFxQ (ORCPT ); Mon, 2 Jun 2003 01:53:16 -0400 Received: from h80ad26bd.async.vt.edu ([128.173.38.189]:4736 "EHLO turing-police.cc.vt.edu") by vger.kernel.org with ESMTP id S261919AbTFBFxP (ORCPT ); Mon, 2 Jun 2003 01:53:15 -0400 Message-Id: <200306020606.h5266A4v002522@turing-police.cc.vt.edu> X-Mailer: exmh version 2.6.3 04/04/2003 with nmh-1.0.4+dev To: "ismail (cartman) donmez" Cc: Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: About 2.5.70-mm3 In-Reply-To: Your message of "Sat, 31 May 2003 23:21:22 +0300." <200305312321.22847.kde@myrealbox.com> From: Valdis.Kletnieks@vt.edu References: <200305311507.53284.kde@myrealbox.com> <20030531104443.63cb1445.akpm@digeo.com> <200305312321.22847.kde@myrealbox.com> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_-1712630272P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Mon, 02 Jun 2003 02:06:08 -0400 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2009 Lines: 48 --==_Exmh_-1712630272P Content-Type: text/plain; charset=us-ascii On Sat, 31 May 2003 23:21:22 +0300, "ismail (cartman) donmez" said: > On Saturday 31 May 2003 20:44, you wrote: > > There's a little hack in there which speeds up the loading of executables: > > when someone does a mmap of a file with executable permissions the kernel > > will slurp it all into pagecache during the mmap. That tends to speed up > > program loading quite a lot, because the normal demand-loading produces > > quite poor I/O patterns. > Cool Yes, *majorly* cool. Between that tweak and the anticipatory scheduler, it makes this laptop even more responsive than stock 2.5.70 was, and less prone to hiccups - without -mm3, it was pretty easy to make xmms pause/skip by suddenly hitting the disk with I/O. I've been trying to make it skip for an hour, even doing things like launching an X application while running an MH 'scan' command on a 7,000 item folder (which involves an open, read, close for 7,000 separate files), and that doesn't phase it at all.. > > I had a vague feeling that this code wasn't working actually, and > > reimplemented it for -mm4. > You do not really feel it in X but on system startup its *quite* impressive. It's noticeable on launching X apps on my laptop, and at boot time, I was wondering if my init scripts were scrogged - [OK] after [OK] faster than I'd seen before. Amazing work, thanks Andrew (and all the contributors...) --==_Exmh_-1712630272P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) Comment: Exmh version 2.5 07/13/2001 iD8DBQE+2ulQcC3lWbTT17ARAiDMAJ4tfjnsJ1/VL+dIMJ5LVPEeO7hd+gCglUuv dvdLRpPpUtpGShe7af2LTNo= =daPH -----END PGP SIGNATURE----- --==_Exmh_-1712630272P-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/