Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752630Ab2HLXM2 (ORCPT ); Sun, 12 Aug 2012 19:12:28 -0400 Received: from LGEMRELSE1Q.lge.com ([156.147.1.111]:62336 "EHLO LGEMRELSE1Q.lge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751019Ab2HLXM1 (ORCPT ); Sun, 12 Aug 2012 19:12:27 -0400 X-AuditID: 9c93016f-b7c98ae0000013b4-a0-502838596679 Date: Mon, 13 Aug 2012 08:14:20 +0900 From: Minchan Kim To: Rafael Aquini Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, Rusty Russell , "Michael S. Tsirkin" , Rik van Riel , Mel Gorman , Andi Kleen , Andrew Morton , Konrad Rzeszutek Wilk Subject: Re: [PATCH v7 1/4] mm: introduce compaction and migration for virtio ballooned pages Message-ID: <20120812231420.GH21033@bbox> References: <292b1b52e863a05b299f94bda69a61371011ac19.1344619987.git.aquini@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <292b1b52e863a05b299f94bda69a61371011ac19.1344619987.git.aquini@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-Brightmail-Tracker: AAAAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 989 Lines: 22 On Fri, Aug 10, 2012 at 02:55:14PM -0300, Rafael Aquini wrote: > Memory fragmentation introduced by ballooning might reduce significantly > the number of 2MB contiguous memory blocks that can be used within a guest, > thus imposing performance penalties associated with the reduced number of > transparent huge pages that could be used by the guest workload. > > This patch introduces the helper functions as well as the necessary changes > to teach compaction and migration bits how to cope with pages which are > part of a guest memory balloon, in order to make them movable by memory > compaction procedures. > > Signed-off-by: Rafael Aquini Reviewed-by: Minchan Kim -- Kind regards, Minchan Kim -- 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/