Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757250AbYGaO20 (ORCPT ); Thu, 31 Jul 2008 10:28:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756099AbYGaO1w (ORCPT ); Thu, 31 Jul 2008 10:27:52 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:32830 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756065AbYGaO1v (ORCPT ); Thu, 31 Jul 2008 10:27:51 -0400 Message-ID: <4891CBA9.8030203@linux-foundation.org> Date: Thu, 31 Jul 2008 09:26:49 -0500 From: Christoph Lameter User-Agent: Thunderbird 2.0.0.16 (Windows/20080708) MIME-Version: 1.0 To: Matt Mackall CC: Linus Torvalds , Pekka J Enberg , Ingo Molnar , Hugh Dickins , Andi Kleen , Peter Zijlstra , Linux Kernel Mailing List , vegard.nossum@gmail.com, hannes@saeurebad.de Subject: Re: [RFC PATCH] greatly reduce SLOB external fragmentation References: <1199314218.4497.109.camel@cinder.waste.org> <20080103085239.GA10813@elte.hu> <1199378818.8274.25.camel@cinder.waste.org> <1199419890.4608.77.camel@cinder.waste.org> <1199641910.8215.28.camel@cinder.waste.org> <1199906151.6245.57.camel@cinder.waste.org> <1199919548.6245.74.camel@cinder.waste.org> <1217466583.18911.226.camel@calx> In-Reply-To: <1217466583.18911.226.camel@calx> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 629 Lines: 15 Matt Mackall wrote: > Finally getting rid of SLAB is a much trickier proposition because SLUB > still loses in a few important corner cases. Which corner cases? I know about the reports on the TPC issue which I guess is a result of the avoidance of queueing in the cold free case. It would be good to have a small C program (under an open source license) that shows the issue. -- 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/