From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965083AbXHYUnd (ORCPT ); Sat, 25 Aug 2007 16:43:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S934357AbXHYUnZ (ORCPT ); Sat, 25 Aug 2007 16:43:25 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:46602 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933844AbXHYUnX (ORCPT ); Sat, 25 Aug 2007 16:43:23 -0400 Date: Sat, 25 Aug 2007 22:43:19 +0200 From: Ingo Molnar To: Linus Torvalds Cc: Andrew Morton , linux-kernel@vger.kernel.org, Peter Zijlstra Subject: Re: [git pull request] scheduler updates Message-ID: <20070825204319.GA8772@elte.hu> References: <20070824141215.GA24403@elte.hu> <20070824193758.GA6440@elte.hu> <20070825172319.GA2080@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070825172319.GA2080@elte.hu> User-Agent: Mutt/1.5.14 (2007-02-12) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.0.3 -1.0 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Ingo Molnar wrote: > git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched.git > > Find the shortlog further below. There are 3 commits in it: adaptive > granularity, a subsequent cleanup, and a lockdep sysctl bug Peter > noticed while hacking on this. (the bug was introduced with the > initial CFS commits but nobody noticed because the lockdep sysctls are > rarely used.) hm, a small (and mostly harmless) buglet sneaked into it: the wakeup granularity and the runtime limit is now dependent on sched_latency - while it should be dependent on min_granularity and latency. To pick up that fix please pull from: git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched.git (ontop of your very latest git tree) the effect of this bug was too high wakeup latency that could cause audio skipping on small-audio-buffer setups. (didnt happen on mine, they have large enough buffers.) Ingo ------------------> Ingo Molnar (1): sched: s/sched_latency/sched_min_granularity sched.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)