Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932961Ab3CYSgv (ORCPT ); Mon, 25 Mar 2013 14:36:51 -0400 Received: from a192-166.smtp-out.amazonses.com ([199.255.192.166]:6416 "EHLO a192-166.smtp-out.amazonses.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932748Ab3CYSgu (ORCPT ); Mon, 25 Mar 2013 14:36:50 -0400 X-Greylist: delayed 558 seconds by postgrey-1.27 at vger.kernel.org; Mon, 25 Mar 2013 14:36:50 EDT Date: Mon, 25 Mar 2013 18:27:30 +0000 From: Christoph Lameter X-X-Sender: cl@gentwo.org To: Steven Rostedt cc: LKML , RT , Thomas Gleixner , Clark Williams Subject: Re: [RT LATENCY] 249 microsecond latency caused by slub's unfreeze_partials() code. In-Reply-To: <1364234613.6345.184.camel@gandalf.local.home> Message-ID: <0000013da2ce20f8-0e3a64ef-67ed-4ab4-9f20-b77980c876c3-000000@email.amazonses.com> References: <1363906545.6345.81.camel@gandalf.local.home> <0000013d92c37ff3-5fb85400-bec1-4eda-8ba1-332566884c59-000000@email.amazonses.com> <1364010673.6345.156.camel@gandalf.local.home> <0000013da1f93be3-c3d42ae8-ff34-4c63-8094-77a83291ea19-000000@email.amazonses.com> <1364227073.6345.182.camel@gandalf.local.home> <1364228039.6345.183.camel@gandalf.local.home> <0000013da2ace21a-9e87fe8a-75c2-4b7c-b5e1-37ad196ce012-000000@email.amazonses.com> <1364234613.6345.184.camel@gandalf.local.home> User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-SES-Outgoing: 199.255.192.166 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 544 Lines: 13 On Mon, 25 Mar 2013, Steven Rostedt wrote: > If this makes it more deterministic, and lower worse case latencies, > then it's definitely worth the price. Yes that would make it more deterministic. Maybe I should add an option to be able to compile the allocator without cpu partial page support? -- 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/