Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761254AbZJMUdb (ORCPT ); Tue, 13 Oct 2009 16:33:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761244AbZJMUda (ORCPT ); Tue, 13 Oct 2009 16:33:30 -0400 Received: from smtp2.ultrahosting.com ([74.213.174.253]:33973 "EHLO smtp.ultrahosting.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1761239AbZJMUd3 (ORCPT ); Tue, 13 Oct 2009 16:33:29 -0400 Date: Tue, 13 Oct 2009 16:25:18 -0400 (EDT) From: Christoph Lameter X-X-Sender: cl@gentwo.org To: Pekka Enberg cc: David Rientjes , Tejun Heo , linux-kernel@vger.kernel.org, Mathieu Desnoyers , Mel Gorman , Zhang Yanmin Subject: Re: [this_cpu_xx V6 7/7] this_cpu: slub aggressive use of this_cpu operations in the hotpaths In-Reply-To: <4AD4D8B6.6010700@cs.helsinki.fi> Message-ID: References: <20091007211024.442168959@gentwo.org> <20091007211053.378634196@gentwo.org> <4AD307A5.105@kernel.org> <84144f020910120614r529d8e4em9babe83a90e9371f@mail.gmail.com> <4AD4D8B6.6010700@cs.helsinki.fi> User-Agent: Alpine 1.10 (DEB 962 2008-03-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 601 Lines: 13 On Tue, 13 Oct 2009, Pekka Enberg wrote: > I wonder how reliable these numbers are. We did similar testing a while back > because we thought kmalloc-96 caches had weird cache behavior but finally > figured out the anomaly was explained by the order of the tests run, not cache > size. The tests were all run directly after booting the respective kernel. -- 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/