From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750928AbXCJXMA (ORCPT ); Sat, 10 Mar 2007 18:12:00 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751334AbXCJXMA (ORCPT ); Sat, 10 Mar 2007 18:12:00 -0500 Received: from mail04.syd.optusnet.com.au ([211.29.132.185]:42373 "EHLO mail04.syd.optusnet.com.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750928AbXCJXL7 (ORCPT ); Sat, 10 Mar 2007 18:11:59 -0500 From: Con Kolivas To: Mark Lord Subject: Re: 2.6.21-rc3-mm1 RSDL results Date: Sun, 11 Mar 2007 10:38:59 +1100 User-Agent: KMail/1.9.5 Cc: Serge Belyshev , William Lee Irwin III , Matt Mackall , linux-kernel , akpm@linux-foundation.org References: <20070309053931.GA10459@waste.org> <45F2F727.7010406@rtr.ca> <200703111034.02159.kernel@kolivas.org> In-Reply-To: <200703111034.02159.kernel@kolivas.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200703111038.59387.kernel@kolivas.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sunday 11 March 2007 10:34, Con Kolivas wrote: > On Sunday 11 March 2007 05:21, Mark Lord wrote: > > Con Kolivas wrote: > > > On Saturday 10 March 2007 05:07, Mark Lord wrote: > > >> Mmm.. when it's good, it's *really* good. > > >> My desktop feels snappier and all of that. > > > > > >.. > > > > > >> But when it's bad, it stinks. > > >> Like when a "make -j2" kernel rebuild is happening in a background > > >> window > > > > > > And that's bad. When you say "it stinks" is it more than 3 times > > > slower? It should be precisely 3 times slower under that load (although > > > low cpu using things like audio wont be affected by running 3 times > > > slower). If it feels like much more than that much slower, there is a > > > bug there somewhere. > > > > Scrolling windows is incredibly jerkey, and very very sluggish > > when images are involved (eg. a large web page in firefox). > > > > > As another reader suggested, how does it run with the compile 'niced'? > > > How does it perform with make (without a -j number). > > > > Yes, it behaves itself when the "make -j2" is nice'd. > > > > >> This is on a Pentium-M 760 single-core, w/2GB SDRAM (notebook). > > > > > > What HZ are you running? Are you running a Beryl desktop? > > > > HZ==1000, NO_HZ, Kubunutu Dapper Drake distro, ATI X300 open-source X.org > > driver. > > Can you try the new version of RSDL. Assuming it doesn't oops on you it has > some accounting bugfixes which may have been biting you. Oh I just checked the mesa repo for that driver as well. It seems the r300 drivers have sched_yield in them as well, but not all components. You may be getting bitten by this too. http://webcvs.freedesktop.org/mesa/Mesa/src/mesa/drivers/dri/r300/radeon_ioctl.c?revision=1.14&view=markup I don't really know what the radeon and other models are so I'm not sure if it applies to your hardware; I just did a random search through the r300 directory. -- -ck