Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753710AbaKDNRZ (ORCPT ); Tue, 4 Nov 2014 08:17:25 -0500 Received: from casper.infradead.org ([85.118.1.10]:37046 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752203AbaKDNRY (ORCPT ); Tue, 4 Nov 2014 08:17:24 -0500 Date: Tue, 4 Nov 2014 14:17:14 +0100 From: Peter Zijlstra To: Vikas Shivappa Cc: Tejun Heo , "Auld, Will" , Matt Fleming , Vikas Shivappa , "linux-kernel@vger.kernel.org" , "Fleming, Matt" , h.peter.anvin@intel.com Subject: Re: Cache Allocation Technology Design Message-ID: <20141104131714.GR3219@twins.programming.kicks-ass.net> References: <20141029081640.GT3337@twins.programming.kicks-ass.net> <20141029124834.GQ12020@console-pimps.org> <20141029134526.GC3337@twins.programming.kicks-ass.net> <96EC5A4F3149B74492D2D9B9B1602C27349EEB88@ORSMSX105.amr.corp.intel.com> <20141029172845.GP12706@worktop.programming.kicks-ass.net> <20141029182234.GA13393@mtj.dyndns.org> <20141030070725.GG3337@twins.programming.kicks-ass.net> <20141030124333.GA29540@htj.dyndns.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Oct 30, 2014 at 04:18:33PM -0700, Vikas Shivappa wrote: > One way to it is to merge the CAT cgroups into the cpuset . In essense there > is no CAT cgroup seperately and we just have a new file 'cbm' in the cpuset. > This would be visible only when system has Cache allocation support and the > user can manipulate the cache bit mask here. > The user can use the already existing cpu_exclusive file in the cpuset to > mark the cgroups to use exclusive CPUs. > That way we simplify and reuse cpuset code/hierarchy .. ? I don't like extending cpusets further. Its already a weird and too big controller. What is wrong with having a specific CQM controller and using it together with cpusets where desired? -- 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/