Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757181AbYHFOZu (ORCPT ); Wed, 6 Aug 2008 10:25:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755553AbYHFOZP (ORCPT ); Wed, 6 Aug 2008 10:25:15 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:46193 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755411AbYHFOZO (ORCPT ); Wed, 6 Aug 2008 10:25:14 -0400 Message-ID: <4899B418.9050509@linux-foundation.org> Date: Wed, 06 Aug 2008 09:24:24 -0500 From: Christoph Lameter User-Agent: Thunderbird 2.0.0.16 (Windows/20080708) MIME-Version: 1.0 To: KOSAKI Motohiro CC: Matthew Wilcox , Pekka Enberg , akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, Mel Gorman , andi@firstfloor.org, Rik van Riel Subject: Re: No, really, stop trying to delete slab until you've finished making slub perform as well References: <2f11576a0808040947r69076eecv9ff92ecf583f7af2@mail.gmail.com> <489738CF.7090401@linux-foundation.org> <20080805210125.A897.KOSAKI.MOTOHIRO@jp.fujitsu.com> <48986AC6.5030406@linux-foundation.org> <2f11576a0808060536o53cabb93m6387d35e3e5791be@mail.gmail.com> In-Reply-To: <2f11576a0808060536o53cabb93m6387d35e3e5791be@mail.gmail.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 Content-Length: 1039 Lines: 39 KOSAKI Motohiro wrote: >>>> Can you quantify the difference? >>> machine spec: >>> CPU: IA64 x 8 >>> MEM: 8G (4G x2node) >> 16k or 64k page size? > > 64k. > > >>> So, about 2.5G - 3G difference in 8G mem. >> Well not sure if that tells us much. Please show us the output of >> /proc/meminfo after each run. The slab counters indicate how much memory is >> used by the slabs. >> >> It would also be interesting to see the output of the slabinfo command after >> the slub run? > > ok. > but i can't do that in this week. > so, I'll do it in next week. > > honestly, I don't know how to use slabinfo command :-) Its in linux/Documentation/vm/slabinfo.c Do gcc -o slabinfo Documentation/vm/slabinfo.c ./slabinfo (./slabinfo -h if you are curious and want to use more advanced options) -- 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/