From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751520Ab1IMJk1 (ORCPT ); Tue, 13 Sep 2011 05:40:27 -0400 Received: from merlin.infradead.org ([205.233.59.134]:48996 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751185Ab1IMJk0 convert rfc822-to-8bit (ORCPT ); Tue, 13 Sep 2011 05:40:26 -0400 Subject: Re: CFS Bandwidth Control - Test results of cgroups tasks pinned vs unpinnede From: Peter Zijlstra To: Srivatsa Vaddagiri Cc: Paul Turner , Kamalesh Babulal , Vladimir Davydov , "linux-kernel@vger.kernel.org" , Bharata B Rao , Dhaval Giani , Vaidyanathan Srinivasan , Ingo Molnar , Pavel Emelianov Date: Tue, 13 Sep 2011 11:39:48 +0200 In-Reply-To: <20110913050306.GB7254@linux.vnet.ibm.com> References: <20110615053716.GA390@linux.vnet.ibm.com> <20110907152009.GA3868@linux.vnet.ibm.com> <1315423342.11101.25.camel@twins> <20110908151433.GB6587@linux.vnet.ibm.com> <1315571462.26517.9.camel@twins> <20110912101722.GA28950@linux.vnet.ibm.com> <1315830943.26517.36.camel@twins> <20110913041545.GD11100@linux.vnet.ibm.com> <20110913050306.GB7254@linux.vnet.ibm.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT X-Mailer: Evolution 3.0.3- Message-ID: <1315906788.575.3.camel@twins> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2011-09-13 at 10:33 +0530, Srivatsa Vaddagiri wrote: > > This is perhaps not optimal (as it may lead to more lock contentions), but > something to note for those who care for both capping and utilization in > equal measure! You meant lock inversion, which leads to more idle time :-)