From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752597AbZL2FZF (ORCPT ); Tue, 29 Dec 2009 00:25:05 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751922AbZL2FZB (ORCPT ); Tue, 29 Dec 2009 00:25:01 -0500 Received: from mail.gmx.net ([213.165.64.20]:50113 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751820AbZL2FZB (ORCPT ); Tue, 29 Dec 2009 00:25:01 -0500 X-Authenticated: #14349625 X-Provags-ID: V01U2FsdGVkX1/tq1tXxm7tO7o0yCSha77wBRUjPXd3V7t3pVHeLM bNBBH9ZcuWK4o+ Subject: Re: tbench regression with 2.6.33-rc1 From: Mike Galbraith To: Lin Ming Cc: "peterz@infradead.org" , "mingo@elte.hu" , "tglx@linutronix.de" , linux-kernel , "Zhang, Yanmin" In-Reply-To: <1262052582.10685.59.camel@minggr.sh.intel.com> References: <1261739467.10685.18.camel@minggr.sh.intel.com> <1261902760.6201.33.camel@marge.simson.net> <1262052582.10685.59.camel@minggr.sh.intel.com> Content-Type: text/plain Date: Tue, 29 Dec 2009 06:24:52 +0100 Message-Id: <1262064292.6412.30.camel@marge.simson.net> Mime-Version: 1.0 X-Mailer: Evolution 2.24.1.1 Content-Transfer-Encoding: 7bit X-Y-GMX-Trusted: 0 X-FuHaFi: 0.66 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2009-12-29 at 10:09 +0800, Lin Ming wrote: > And also no regression if I run tbench with RT scheduler on tulsa > machine, as below command, > > schedtool -R -p 20 -e tbench_srv & > schedtool -R -p 20 -e tbench 32 Hm, odd. I'd expect tbench to suffer when run SCHED_RR, and here it does, achieving roughly 85% of lowest SCHED_OTHER throughput. -Mike