From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161691AbXEDSrq (ORCPT ); Fri, 4 May 2007 14:47:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161625AbXEDSrp (ORCPT ); Fri, 4 May 2007 14:47:45 -0400 Received: from netops-testserver-4-out.sgi.com ([192.48.171.29]:48911 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1161605AbXEDSrm (ORCPT ); Fri, 4 May 2007 14:47:42 -0400 Date: Fri, 4 May 2007 11:47:41 -0700 (PDT) From: Christoph Lameter X-X-Sender: clameter@schroedinger.engr.sgi.com To: Pekka Enberg cc: Peter Zijlstra , linux-kernel@vger.kernel.org, linux-mm@kvack.org, netdev@vger.kernel.org, Trond Myklebust , Thomas Graf , David Miller , James Bottomley , Mike Christie , Andrew Morton , Daniel Phillips Subject: Re: [PATCH 08/40] mm: kmem_cache_objsize In-Reply-To: <463B7F63.8070508@cs.helsinki.fi> Message-ID: References: <20070504102651.923946304@chello.nl> <20070504103157.215424767@chello.nl> <1178301545.24217.56.camel@twins> <1178302904.2767.6.camel@lappy> <1178303538.2767.9.camel@lappy> <463B7F63.8070508@cs.helsinki.fi> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 4 May 2007, Pekka Enberg wrote: > Again, slab has no way of actually estimating how many pages you need for a > given number of objects. So we end up calculating some upper bound which > doesn't belong in mm/slab.c. I am perfectly okay with: It can give a worst case number and that is what he wants.