From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail203.messagelabs.com (mail203.messagelabs.com [216.82.254.243]) by kanga.kvack.org (Postfix) with ESMTP id 66C8C8D0039 for ; Tue, 22 Feb 2011 11:36:36 -0500 (EST) Received: from d03relay03.boulder.ibm.com (d03relay03.boulder.ibm.com [9.17.195.228]) by e37.co.us.ibm.com (8.14.4/8.13.1) with ESMTP id p1MGXsHp021714 for ; Tue, 22 Feb 2011 09:33:54 -0700 Received: from d03av02.boulder.ibm.com (d03av02.boulder.ibm.com [9.17.195.168]) by d03relay03.boulder.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id p1MGaSOT108572 for ; Tue, 22 Feb 2011 09:36:28 -0700 Received: from d03av02.boulder.ibm.com (loopback [127.0.0.1]) by d03av02.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id p1MGaRJ7003170 for ; Tue, 22 Feb 2011 09:36:28 -0700 Subject: Re: [PATCH 8/8] Add VM counters for transparent hugepages From: Dave Hansen In-Reply-To: <1298315270-10434-9-git-send-email-andi@firstfloor.org> References: <1298315270-10434-1-git-send-email-andi@firstfloor.org> <1298315270-10434-9-git-send-email-andi@firstfloor.org> Content-Type: text/plain; charset="ANSI_X3.4-1968" Date: Tue, 22 Feb 2011 08:36:26 -0800 Message-ID: <1298392586.9829.22566.camel@nimitz> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Andi Kleen Cc: akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, aarcange@redhat.com, lwoodman@redhat.com, Andi Kleen On Mon, 2011-02-21 at 11:07 -0800, Andi Kleen wrote: > From: Andi Kleen > > I found it difficult to make sense of transparent huge pages without > having any counters for its actions. Add some counters to vmstat > for allocation of transparent hugepages and fallback to smaller > pages. > > Optional patch, but useful for development and understanding the system. Very nice. I did the same thing, splits-only. I also found this stuff a must-have for trying to do any work with transparent hugepages. It's just impossible otherwise. Acked-by: Dave Hansen -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org