Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757413AbZCJWM0 (ORCPT ); Tue, 10 Mar 2009 18:12:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755846AbZCJWMN (ORCPT ); Tue, 10 Mar 2009 18:12:13 -0400 Received: from smtp-out.google.com ([216.239.45.13]:50157 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754734AbZCJWMM (ORCPT ); Tue, 10 Mar 2009 18:12:12 -0400 DomainKey-Signature: a=rsa-sha1; s=beta; d=google.com; c=nofws; q=dns; h=mime-version:in-reply-to:references:date:message-id:subject:from:to: cc:content-type:content-transfer-encoding:x-system-of-record; b=xpTbu6r4SUKEeDVEIyilU9HQaK3PLHdx+pjUBRAZhQklXSPdBlwE+E6hVKZVPnyx4 lLUb50/5tRPfKINkbx5Hw== MIME-Version: 1.0 In-Reply-To: References: <20090309123011.A228.A69D9226@jp.fujitsu.com> <20090309181756.CF66.A69D9226@jp.fujitsu.com> Date: Tue, 10 Mar 2009 15:12:07 -0700 Message-ID: <6599ad830903101512g16a8eda3w959123e71c225960@mail.gmail.com> Subject: Re: [patch -mm] cpusets: add memory_slab_hardwall flag From: Paul Menage To: Christoph Lameter Cc: David Rientjes , KOSAKI Motohiro , Andrew Morton , Pekka Enberg , Matt Mackall , Randy Dunlap , linux-kernel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-System-Of-Record: true Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 932 Lines: 20 On Tue, Mar 10, 2009 at 1:50 PM, Christoph Lameter wrote: > > So no real workload just some isolation idea. We definitely have real workloads where a job is allocating lots of slab memory (e.g. network socket buffers, dentry/inode objects, etc) and we want to be able to account the memory usage to each job rather than having all the slab scattered around unidentifiably, and to reduce fragmentation (so when a job finishes, all its sockets close and all its files are deleted, there's a better chance that we'll be able to reclaim some slab memory). We could probably turn those into more synthetic benchmarkable loads if necessary for demonstration. Paul -- 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/