From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266062AbUALGLb (ORCPT ); Mon, 12 Jan 2004 01:11:31 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266060AbUALGLb (ORCPT ); Mon, 12 Jan 2004 01:11:31 -0500 Received: from h80ad24b1.async.vt.edu ([128.173.36.177]:37248 "EHLO turing-police.cc.vt.edu") by vger.kernel.org with ESMTP id S266068AbUALGL3 (ORCPT ); Mon, 12 Jan 2004 01:11:29 -0500 Message-Id: <200401120611.i0C6BH7c003591@turing-police.cc.vt.edu> X-Mailer: exmh version 2.6.3 04/04/2003 with nmh-1.0.4+dev To: Andrew Morton Cc: gene.heskett@verizon.net, linux-kernel@vger.kernel.org Subject: Re: 2.6.1-mm1: drivers/video/sis/sis_main.c link error In-Reply-To: Your message of "Sun, 11 Jan 2004 21:42:59 PST." <20040111214259.568cff35.akpm@osdl.org> From: Valdis.Kletnieks@vt.edu References: <20040109014003.3d925e54.akpm@osdl.org> <3FFF79E5.5010401@winischhofer.net> <200401112353.43282.gene.heskett@verizon.net> <20040111214259.568cff35.akpm@osdl.org> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_-752633002P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Mon, 12 Jan 2004 01:11:17 -0500 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --==_Exmh_-752633002P Content-Type: text/plain; charset=us-ascii On Sun, 11 Jan 2004 21:42:59 PST, Andrew Morton said: > Gene Heskett wrote: > > hubble of about 4 or 5 months back. In any other kernel, switching > > to that window took about 12 seconds for the backdrop to be converted > > to 1600x1200x32 and drawn the first time and about 8 seconds for the > > next time. But with this 2.6.1-mm1 kernel, that repeat window switch > > is so close to instant that I cannot see it being drawn. > There are no significant fbdev patches in 2.6.1-mm1. There is a DRM > update. The 12 seconds coming and 8 seconds going, versus instant, sounds an *awful* lot like the virtual memory manager making better choices in -mm kernels, so the pages of pixmap are staying in memory rather than paging out. Other guess is that o21-sched.patch is DTRT, while the stock scheduler DTWT for his particular config. Gene: Can you tell what exactly your system is doing for the 12/8 seconds? Is it CPU bound, or beating on the disk while paging in/out, or just sitting idle? Leaving a 'vmstat 1' running while you change backdrops should tell us something. --==_Exmh_-752633002P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) Comment: Exmh version 2.5 07/13/2001 iD8DBQFAAjqFcC3lWbTT17ARAoQQAJ9xCT+kjdTlD71HjV39ZtnHUIS/zQCgydL9 2bBhB3aAJTbvOkRZDeU+/uo= =czGy -----END PGP SIGNATURE----- --==_Exmh_-752633002P--