From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755838AbYEJJxs (ORCPT ); Sat, 10 May 2008 05:53:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752410AbYEJJxi (ORCPT ); Sat, 10 May 2008 05:53:38 -0400 Received: from one.firstfloor.org ([213.235.205.2]:42792 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752356AbYEJJxh (ORCPT ); Sat, 10 May 2008 05:53:37 -0400 Message-ID: <4825709A.2020407@firstfloor.org> Date: Sat, 10 May 2008 11:53:30 +0200 From: Andi Kleen User-Agent: Thunderbird 1.5.0.12 (X11/20060911) MIME-Version: 1.0 To: Christoph Lameter CC: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, Mel Gorman , Rik van Riel , Pekka Enberg , mpm@selenic.com Subject: Re: [patch 21/21] slab defrag: Obsolete SLAB References: <20080510030831.796641881@sgi.com> <20080510030919.604216074@sgi.com> In-Reply-To: <20080510030919.604216074@sgi.com> 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 Christoph Lameter wrote: > Slab defragmentation introduces new functionality not supported by SLAB and > SLOB. > > Make slab depend on EXPERIMENTAL and note its obsoleteness and that > various functionality is not supported by SLAB. > > Also update SLOB's description a bit to indicate that certain OS > support is limited by design. What about the TPC performance regressions? My understanding was that slub still performed worse in the "object allocated on one CPU, freed on the other CPU" type workloads due to less batching. -Andi