Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754867AbYBILFY (ORCPT ); Sat, 9 Feb 2008 06:05:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751259AbYBILFL (ORCPT ); Sat, 9 Feb 2008 06:05:11 -0500 Received: from mail.gmx.net ([213.165.64.20]:57412 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1750823AbYBILFK (ORCPT ); Sat, 9 Feb 2008 06:05:10 -0500 X-Authenticated: #14349625 X-Provags-ID: V01U2FsdGVkX1+c2wcVjsmcVx4KUmaFwG9/Ko+wvxKQ4SA6GcC1FQ pGeJnaDSThwNrN Subject: Re: Scheduler(?) regression from 2.6.22 to 2.6.24 for short-lived threads From: Mike Galbraith To: Willy Tarreau Cc: Olof Johansson , linux-kernel@vger.kernel.org, Peter Zijlstra , Ingo Molnar In-Reply-To: <20080209080319.GO8953@1wt.eu> References: <20080209000456.GA21021@lixom.net> <1202543920.9578.3.camel@homer.simson.net> <20080209080319.GO8953@1wt.eu> Content-Type: text/plain Date: Sat, 09 Feb 2008 11:58:25 +0100 Message-Id: <1202554705.10287.12.camel@homer.simson.net> Mime-Version: 1.0 X-Mailer: Evolution 2.12.0 Content-Transfer-Encoding: 7bit X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 622 Lines: 24 On Sat, 2008-02-09 at 09:03 +0100, Willy Tarreau wrote: > How many CPUs do you have ? It's a P4/HT, so 1 plus $CHUMP_CHANGE_MAYBE > > 2.6.25-smp (git today) > > time 29 ms > > time 61 ms > > time 72 ms > > These ones look rather strange. What type of workload is it ? Can you > publish the program for others to test it ? It's the proglet posted in this thread. -Mike -- 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/