From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752246AbXDQRPr (ORCPT ); Tue, 17 Apr 2007 13:15:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752262AbXDQRPr (ORCPT ); Tue, 17 Apr 2007 13:15:47 -0400 Received: from wx-out-0506.google.com ([66.249.82.225]:40051 "EHLO wx-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752225AbXDQRPq (ORCPT ); Tue, 17 Apr 2007 13:15:46 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:from:organization:to:subject:date:user-agent:cc:references:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:message-id; b=d4j2XpaYTD1E1Mpl02qeYDK/zAtGPDoxC/o/3Pmq7/K7+dFiq7EhbwraMs6naR13/k0TB3R7OaPTRcRD7SxlI7VnKyy3NaHzB3HcEd0sE5/WysZWfekuEMss/IGeVy5PAFDo4xE5PKA/4oE5wDSnj22kPk7No5Lb9Mt3s7qv+WI= From: Gene Heskett Organization: Organization? very little To: Ingo Molnar Subject: Re: [patch] CFS (Completely Fair Scheduler), v2 Date: Tue, 17 Apr 2007 13:15:39 -0400 User-Agent: KMail/1.9.6 Cc: linux-kernel@vger.kernel.org, Linus Torvalds , Andrew Morton , Con Kolivas , Nick Piggin , Mike Galbraith , Arjan van de Ven , Peter Williams , Thomas Gleixner , caglar@pardus.org.tr, Willy Tarreau , Dmitry Adamushko References: <20070416220715.GA4071@elte.hu> <20070417061849.GA12385@elte.hu> <20070417070132.GA27261@elte.hu> In-Reply-To: <20070417070132.GA27261@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200704171315.39748.gene.heskett@gmail.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tuesday 17 April 2007, Ingo Molnar wrote: >* Ingo Molnar wrote: >> ok - fortunately the delta between -v2-rc0 and -v2-final is pretty >> small. One difference is the child-runs-first fix. To restore the >> parent-runs-first logic, do this: >> >> echo 0 > /proc/sys/kernel/sched_child_runs_first >> >> does this make any difference? > >ok, i've got something better to test: i separated the delta out into a >more finegrained stack of 3 patches. You can pick them up from: > > http://redhat.com/~mingo/cfs-scheduler/older/sched-cfs-v2-rc0.patch > http://redhat.com/~mingo/cfs-scheduler/older/sched-cfs-v2-rc0-preempt-fix.p >atch > http://redhat.com/~mingo/cfs-scheduler/older/sched-cfs-v2-rc0-child-runs-fi >rst.patch > http://redhat.com/~mingo/cfs-scheduler/older/sched-cfs-v2-rc0-misc.patch > Ahh, so many cats, and so few recipes here Ingo. In this case cats=patches & recipes=time to test adequately. I do have another box, but it would probably take a week & about a big buck to get that old rh7.3 brought up to date & suitable, and its only a 500MHZ K-III, which might make the diffs more obvious. It would need a video card to replace its dinosaur Diamond and a fresh dvd drive. And its motherboard has very buggy usb chips. TYAN S-1590. Never could get anything bigger than a mouse packet through them. >i test-built and test-booted all 4 steps of this. The baseline -v2-rc0 >patch should be the one that works - you might want to double-check it, >just to be sure. One of the other 3 patches ontop of this baseline >causes the regression on your desktop. My current bet is on preempt-fix, >so i have put that one first. The other one would be the second patch, >child-runs-first. The misc patch should have no effect on behavior - but >i've included it for completeness. (and i was wrong about the 'nice >fix', it is not in this delta) > > Ingo -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Q: What's the difference between a dead dog in the road and a dead lawyer in the road? A: There are skid marks in front of the dog.