From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933486AbbCRQrz (ORCPT ); Wed, 18 Mar 2015 12:47:55 -0400 Received: from mail-vc0-f169.google.com ([209.85.220.169]:49227 "EHLO mail-vc0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932090AbbCRQru (ORCPT ); Wed, 18 Mar 2015 12:47:50 -0400 Date: Wed, 18 Mar 2015 12:47:45 -0400 From: Tejun Heo To: riel@redhat.com Cc: linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, lizefan@huawei.com, Peter Zijlstra , Clark Williams , Ingo Molnar , Luiz Capitulino , David Rientjes , Mike Galbraith Subject: Re: [PATCH 3/4] cpusets,isolcpus: add file to show isolated cpus in cpuset Message-ID: <20150318164745.GA21564@htj.duckdns.org> References: <1425917530-1771-1-git-send-email-riel@redhat.com> <1425917530-1771-4-git-send-email-riel@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1425917530-1771-4-git-send-email-riel@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Mar 09, 2015 at 12:12:09PM -0400, riel@redhat.com wrote: > From: Rik van Riel > > The previous patch makes it so the code skips over isolcpus when > building scheduler load balancing domains. This makes it hard to > see for a user which of the CPUs in a cpuset are participating in > load balancing, and which ones are isolated cpus. > > Add a cpuset.isolcpus file with info on which cpus in a cpuset are > isolated CPUs. > > This file is read-only for now. In the future we could extend things > so isolcpus can be changed at run time, for the root (system wide) > cpuset only. Didn't Li say that this is trivially computable from userland? I'm not sure this knob actually belongs to cpuset. Thanks. -- tejun