Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752907AbYCIMe6 (ORCPT ); Sun, 9 Mar 2008 08:34:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751209AbYCIMeu (ORCPT ); Sun, 9 Mar 2008 08:34:50 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:52028 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751004AbYCIMeu (ORCPT ); Sun, 9 Mar 2008 08:34:50 -0400 Date: Sun, 9 Mar 2008 13:34:32 +0100 From: Ingo Molnar To: KOSAKI Motohiro Cc: Thomas Gleixner , LKML , Linus Torvalds , Andrew Morton , Christoph Lameter , Bart Van Assche Subject: Re: quicklists confuse meminfo Message-ID: <20080309123432.GA3267@elte.hu> References: <20080309111456.GA21690@elte.hu> <20080309210000.C6DE.KOSAKI.MOTOHIRO@jp.fujitsu.com> <20080309120940.GA1695@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080309120940.GA1695@elte.hu> User-Agent: Mutt/1.5.17 (2007-11-01) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 876 Lines: 25 * Ingo Molnar wrote: > > IMHO we need shrink pgtable cache mecanism. > > ouch! Could you try the patch below? How large is the quicklist cache > with this applied? hm, Thomas pointed it out that this wont solve all the problems as quicklists have a built-in "preserve me" throttle (which is rather stupid). the right solution is to get rid of quicklists altogether (Thomas expects to have patches for that later today). If anyone implements a _sane_ general purpose allocator that can preserve constructed objects then i'm all for utilizing it in x86 too, but quicklists arent that mechanism ... Ingo -- 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/