From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758173AbXJCMmG (ORCPT ); Wed, 3 Oct 2007 08:42:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753619AbXJCMlz (ORCPT ); Wed, 3 Oct 2007 08:41:55 -0400 Received: from netops-testserver-4-out.sgi.com ([192.48.171.29]:41819 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752648AbXJCMly (ORCPT ); Wed, 3 Oct 2007 08:41:54 -0400 Date: Wed, 3 Oct 2007 05:41:49 -0700 From: Paul Jackson To: Nick Piggin Cc: akpm@linux-foundation.org, menage@google.com, linux-kernel@vger.kernel.org, dino@in.ibm.com, cpw@sgi.com, mingo@elte.hu Subject: Re: [PATCH] cpuset and sched domains: sched_load_balance flag Message-Id: <20071003054149.a18b0547.pj@sgi.com> In-Reply-To: <200710030553.27822.nickpiggin@yahoo.com.au> References: <20070930104403.24828.48263.sendpatchset@jackhammer.engr.sgi.com> <200710030525.29735.nickpiggin@yahoo.com.au> <20071003051438.e1371e99.pj@sgi.com> <200710030553.27822.nickpiggin@yahoo.com.au> Organization: SGI X-Mailer: Sylpheed version 2.2.4 (GTK+ 2.8.3; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > pdflush > is not pinned at all and can be dynamically created and destroyed. Ditto > for kjournald, as well as many others. Whatever is not pinned is moved out of the top cpuset, on the kind of systems I'm most familiar with. They are put in a smaller cpuset, with load balancing, that is sized for the workload they might present, but kept separate from the main jobs. > Basically: it doesn't feel like a satisfactory solution to brush > these under the carpet. We don't do a whole lot of brushing under the carpet on these kind of systems. If I gave you the impression we do, then I misled you - sorry. -- I won't rest till it's the best ... Programmer, Linux Scalability Paul Jackson 1.925.600.0401