From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756776Ab1HaQMu (ORCPT ); Wed, 31 Aug 2011 12:12:50 -0400 Received: from mailout-de.gmx.net ([213.165.64.23]:47848 "HELO mailout-de.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1755985Ab1HaQMr (ORCPT ); Wed, 31 Aug 2011 12:12:47 -0400 X-Authenticated: #14349625 X-Provags-ID: V01U2FsdGVkX19tno8lQA1tgir5LaUPeF+jggNx3wE6wK7ega5zxd 5ZRz8vKr998Lye Subject: Re: [RFC PATCH 00/32] Nohz cpusets (was: Nohz Tasks) From: Mike Galbraith To: Gilad Ben-Yossef Cc: Peter Zijlstra , Frederic Weisbecker , LKML , Andrew Morton , Anton Blanchard , Avi Kivity , Ingo Molnar , Lai Jiangshan , "Paul E . McKenney" , Stephen Hemminger , Thomas Gleixner , Tim Pepper In-Reply-To: References: <1313423549-27093-1-git-send-email-fweisbec@gmail.com> <20110830140648.GL9748@somewhere.redhat.com> <1314762442.4653.5.camel@marge.simson.net> <1314782887.23993.12.camel@twins> <1314786377.4653.19.camel@marge.simson.net> Content-Type: text/plain; charset="UTF-8" Date: Wed, 31 Aug 2011 18:12:40 +0200 Message-ID: <1314807160.4653.48.camel@marge.simson.net> Mime-Version: 1.0 X-Mailer: Evolution 2.32.1 Content-Transfer-Encoding: 7bit X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2011-08-31 at 17:05 +0300, Gilad Ben-Yossef wrote: > > Guess I'll have to try creating a cpuset per cpu, and see how it > > compares to isolcpus. cset shield --cpu 4-63 didn't work well enough. > > Try adding: > > # cset shield --kthread on Yeah, did that. Killing load balancing in the cpuset should eliminate the problem. Well, for the test app I was running anyway, which has everything pinned, and pure RT. -Mike