Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753460Ab0BSB7q (ORCPT ); Thu, 18 Feb 2010 20:59:46 -0500 Received: from mail-px0-f191.google.com ([209.85.216.191]:37207 "EHLO mail-px0-f191.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753145Ab0BSB7p convert rfc822-to-8bit (ORCPT ); Thu, 18 Feb 2010 20:59:45 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=vpg20YBOEIhG2Qdo5RWrHSu7tHE4AteGJV3PJSyIoDUbQBDaBnB+GzDIaNxCgTRPxb pkLgEKrFTHYQsNDLLJPk7SVtJ6iiBOQeD031aDG060EThnHp4ELwmUCP2ptSt4OU6FcH 57AsVM0LJgw1czjZBTvwmTRu1UWybBy6jw3OM= MIME-Version: 1.0 In-Reply-To: <1266516162-14154-8-git-send-email-mel@csn.ul.ie> References: <1266516162-14154-1-git-send-email-mel@csn.ul.ie> <1266516162-14154-8-git-send-email-mel@csn.ul.ie> Date: Fri, 19 Feb 2010 10:59:45 +0900 Message-ID: <28c262361002181759m35c0fd73k5f252953b4d0932@mail.gmail.com> Subject: Re: [PATCH 07/12] Export fragmentation index via /proc/pagetypeinfo From: Minchan Kim To: Mel Gorman Cc: Andrea Arcangeli , Christoph Lameter , Adam Litke , Avi Kivity , David Rientjes , KOSAKI Motohiro , Rik van Riel , linux-kernel@vger.kernel.org, linux-mm@kvack.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 858 Lines: 19 On Fri, Feb 19, 2010 at 3:02 AM, Mel Gorman wrote: > Fragmentation index is a value that makes sense when an allocation of a > given size would fail. The index indicates whether an allocation failure is > due to a lack of memory (values towards 0) or due to external fragmentation > (value towards 1).  For the most part, the huge page size will be the size > of interest but not necessarily so it is exported on a per-order and per-zone > basis via /proc/pagetypeinfo. > > Signed-off-by: Mel Gorman 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/