Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752619AbZCIGw4 (ORCPT ); Mon, 9 Mar 2009 02:52:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751782AbZCIGwr (ORCPT ); Mon, 9 Mar 2009 02:52:47 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:39255 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751578AbZCIGwq (ORCPT ); Mon, 9 Mar 2009 02:52:46 -0400 Date: Mon, 9 Mar 2009 07:52:38 +0100 From: Ingo Molnar To: Mike Galbraith Cc: Balazs Scheidler , linux-kernel@vger.kernel.org, Peter Zijlstra Subject: Re: scheduler oddity [bug?] Message-ID: <20090309065238.GB7057@elte.hu> References: <1236448069.16726.21.camel@bzorp.balabit> <1236505323.6281.57.camel@marge.simson.net> <1236506309.6972.8.camel@marge.simson.net> <20090308153956.GB19658@elte.hu> <1236529200.7110.16.camel@marge.simson.net> <20090308175255.GA22802@elte.hu> <1236537580.7094.8.camel@marge.simson.net> <20090308185518.GB28169@elte.hu> <1236571851.15543.13.camel@marge.simson.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1236571851.15543.13.camel@marge.simson.net> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.5 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 661 Lines: 21 * Mike Galbraith wrote: > On Sun, 2009-03-08 at 19:55 +0100, Ingo Molnar wrote: > > > btw., there's room for a cleanup + micro-optimization here too: > > it would be nice to change se.last_wakeup and > > se.prev_sum_exec_runtime to be the same variable, > > se.prev_timestamp or so. > > I don't see how they can meld without breaking > check_preempt_tick() all to pieces. hm, indeed. Ingo -- 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/