From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753376Ab3GAJVF (ORCPT ); Mon, 1 Jul 2013 05:21:05 -0400 Received: from moutng.kundenserver.de ([212.227.17.8]:56355 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753126Ab3GAJVE (ORCPT ); Mon, 1 Jul 2013 05:21:04 -0400 Message-ID: <1372670432.7678.114.camel@marge.simpson.net> Subject: Re: sched: context tracking demolishes pipe-test From: Mike Galbraith To: Peter Zijlstra Cc: LKML , Ingo Molnar Date: Mon, 01 Jul 2013 11:20:32 +0200 In-Reply-To: <1372669941.7678.113.camel@marge.simpson.net> References: <1372579056.6607.16.camel@marge.simpson.net> <20130630212940.GK6626@twins.programming.kicks-ass.net> <1372658875.7678.17.camel@marge.simpson.net> <20130701080638.GM6626@twins.programming.kicks-ass.net> <1372669941.7678.113.camel@marge.simpson.net> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 X-Provags-ID: V02:K0:Xcz0ZdA3nBMs87K1JxGbRdRaEd7oMrgnyDuFhgTPg22 L3SxPtGDae8vC7h25G7t2Lp7krfT47qWZINxiFS8dwQzvXyBGV 1RVsKzedBmk9UjruFNewLiAUcb5ZVqa+8I3YlEajXTaYJ4Hnk5 s4YSISiv0U1FtkVfa4lv1QkiCooqyiivYU0sAKtS6/HpktRiYE jx45ltbCrW8/2Xz1tV/a+l62OnJ7ULOfBdNZKySs/CGMSNLdUj kxsrm7DpttafKPLMmKFjuYSkGg4/lRAaHb+58u/6K24NAlfdAD vK7iEOvpuGgxzFAxDSbrrVib5dleUlloZHJbUtDlGVTLrPHKnT AMKqK053O3MPrrKhJYbUMIct8YYUZIVsVqPPrwt5t3aJJixF0a NlrXDTmecwdYQ== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2013-07-01 at 11:12 +0200, Mike Galbraith wrote: > On Mon, 2013-07-01 at 10:06 +0200, Peter Zijlstra wrote: > > > So aside from the context tracking stuff, there's still a regression > > we might want to look at. That's still a ~10% drop against 2.6.32 for > > TCP_RR and few percents for tbench. > > Yeah, known, and some of it's ours. (btw tbench has a ~5% phase-of-moon jitter, you can pretty much disregard that one)