From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750919AbVI1VSn (ORCPT ); Wed, 28 Sep 2005 17:18:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750909AbVI1VSn (ORCPT ); Wed, 28 Sep 2005 17:18:43 -0400 Received: from dvhart.com ([64.146.134.43]:64909 "EHLO localhost.localdomain") by vger.kernel.org with ESMTP id S1750782AbVI1VSm (ORCPT ); Wed, 28 Sep 2005 17:18:42 -0400 Date: Wed, 28 Sep 2005 14:18:38 -0700 From: "Martin J. Bligh" Reply-To: "Martin J. Bligh" To: Christoph Lameter , "Seth, Rohit" Cc: akpm@osdl.org, linux-mm@kvack.org, Mattia Dongili , linux-kernel@vger.kernel.org Subject: Re: [patch] Reset the high water marks in CPUs pcp list Message-ID: <15630000.1127942318@flay> In-Reply-To: References: <20050928105009.B29282@unix-os.sc.intel.com> X-Mailer: Mulberry/2.1.2 (Linux/x86) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --On Wednesday, September 28, 2005 13:01:23 -0700 Christoph Lameter wrote: > On Wed, 28 Sep 2005, Seth, Rohit wrote: > >> Recent changes in page allocations for pcps has increased the high watermark for these lists. This has resulted in scenarios where pcp lists could be having bigger number of free pages even under low memory conditions. >> >> [PATCH]: Reduce the high mark in cpu's pcp lists. > > There is no need for such a patch. The pcp lists are regularly flushed. > See drain_remote_pages. That's only retrieving pages which have migrated off-node, is it not? M.