From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755477AbZC3GiY (ORCPT ); Mon, 30 Mar 2009 02:38:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753590AbZC3GiP (ORCPT ); Mon, 30 Mar 2009 02:38:15 -0400 Received: from courier.cs.helsinki.fi ([128.214.9.1]:54747 "EHLO mail.cs.helsinki.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752675AbZC3GiO (ORCPT ); Mon, 30 Mar 2009 02:38:14 -0400 Subject: Re: [patch 0/3] slub partial list thrashing performance degradation From: Pekka Enberg To: David Rientjes Cc: Christoph Lameter , Nick Piggin , Martin Bligh , linux-kernel@vger.kernel.org In-Reply-To: References: Date: Mon, 30 Mar 2009 09:38:11 +0300 Message-Id: <1238395091.26742.24.camel@penberg-laptop> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 7bit X-Mailer: Evolution 2.22.3.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 2009-03-29 at 22:43 -0700, David Rientjes wrote: > SLUB causes a performance degradation in comparison to SLAB when a > workload has an object allocation and freeing pattern such that it spends > more time in partial list handling than utilizing the fastpaths. Christoph, Nick, any objections to merging this? The patches look sane and the numbers convincing enough to me. Pekka