Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755610AbYGROot (ORCPT ); Fri, 18 Jul 2008 10:44:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752726AbYGROok (ORCPT ); Fri, 18 Jul 2008 10:44:40 -0400 Received: from anchor-post-37.mail.demon.net ([194.217.242.87]:55052 "EHLO anchor-post-37.mail.demon.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750736AbYGROoj (ORCPT ); Fri, 18 Jul 2008 10:44:39 -0400 Subject: Re: [PATCH][RFC] slub: increasing order reduces memory usage of some key caches From: Richard Kennedy To: Christoph Lameter Cc: penberg@cs.helsinki.fi, mpm@selenic.com, linux-mm , lkml , Mel Gorman In-Reply-To: <4880A694.1000100@linux-foundation.org> References: <1216211371.3122.46.camel@castor.localdomain> <487DF5D4.9070101@linux-foundation.org> <1216216730.3122.60.camel@castor.localdomain> <487DFFBE.5050407@linux-foundation.org> <1216375025.3082.7.camel@castor.localdomain> <4880A694.1000100@linux-foundation.org> Content-Type: text/plain Date: Fri, 18 Jul 2008 15:42:57 +0100 Message-Id: <1216392177.3082.27.camel@castor.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.12.3 (2.12.3-5.fc8) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1757 Lines: 41 On Fri, 2008-07-18 at 09:20 -0500, Christoph Lameter wrote: > Richard Kennedy wrote: > > > Slabcache: radix_tree_node Aliases: 0 Order : 1 Objects: 33564 > > Argh. Should this not be the dentry cache? Wrong numbers? > > sorry -- yes I cut & pasted the wrong set. **2.6.26 Slabcache: dentry Aliases: 0 Order : 0 Objects: 22553 ** Reclaim accounting active Sizes (bytes) Slabs Debug Memory ------------------------------------------------------------------------ Object : 208 Total : 1188 Sanity Checks : Off Total: 4866048 SlabObj: 208 Full : 1186 Redzoning : Off Used : 4691024 SlabSiz: 4096 Partial: 0 Poisoning : Off Loss : 175024 Loss : 0 CpuSlab: 2 Tracking : Off Lalig: 0 Align : 8 Objects: 19 Tracing : Off Lpadd: 171072 **after make Slabcache: dentry Aliases: 0 Order : 0 Objects: 80076 ** Reclaim accounting active Sizes (bytes) Slabs Debug Memory ------------------------------------------------------------------------ Object : 208 Total : 4215 Sanity Checks : Off Total: 17264640 SlabObj: 208 Full : 4205 Redzoning : Off Used : 16655808 SlabSiz: 4096 Partial: 8 Poisoning : Off Loss : 608832 Loss : 0 CpuSlab: 2 Tracking : Off Lalig: 0 Align : 8 Objects: 19 Tracing : Off Lpadd: 606960 -- 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/