From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <owner-linux-mm@kvack.org>
Received: from mail191.messagelabs.com (mail191.messagelabs.com [216.82.242.19])
	by kanga.kvack.org (Postfix) with SMTP id 312356B003D
	for <linux-mm@kvack.org>; Tue, 28 Apr 2009 16:46:25 -0400 (EDT)
Received: by qw-out-1920.google.com with SMTP id 4so681773qwk.44
        for <linux-mm@kvack.org>; Tue, 28 Apr 2009 13:47:08 -0700 (PDT)
MIME-Version: 1.0
In-Reply-To: <1240943671.938.575.camel@calx>
References: <20090428010907.912554629@intel.com>
	 <20090428014920.769723618@intel.com> <20090428065507.GA2024@elte.hu>
	 <20090428083320.GB17038@localhost>
	 <12c511ca0904281111r10f37a5coe5a2750f4dbfbcda@mail.gmail.com>
	 <1240943671.938.575.camel@calx>
Date: Tue, 28 Apr 2009 13:47:07 -0700
Message-ID: <12c511ca0904281347m394b04e0mcb61f7c336752cc4@mail.gmail.com>
Subject: Re: [PATCH 5/5] proc: export more page flags in /proc/kpageflags
From: Tony Luck <tony.luck@gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Sender: owner-linux-mm@kvack.org
To: Matt Mackall <mpm@selenic.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>, Ingo Molnar <mingo@elte.hu>, Steven Rostedt <rostedt@goodmis.org>, =?ISO-8859-1?Q?Fr=E9d=E9ric_Weisbecker?= <fweisbec@gmail.com>, Larry Woodman <lwoodman@redhat.com>, Peter Zijlstra <a.p.zijlstra@chello.nl>, Pekka Enberg <penberg@cs.helsinki.fi>, Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>, Andrew Morton <akpm@linux-foundation.org>, LKML <linux-kernel@vger.kernel.org>, KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>, Andi Kleen <andi@firstfloor.org>, Alexey Dobriyan <adobriyan@gmail.com>, "linux-mm@kvack.org" <linux-mm@kvack.org>
List-ID: <linux-mm.kvack.org>

On Tue, Apr 28, 2009 at 11:34 AM, Matt Mackall <mpm@selenic.com> wrote:
> Bah. The rate of change is proportional to #cpus, not #pages. Assuming
> you've got 1024 processors, you could run the scan in parallel in .2
> seconds still.

That would help ... it would also make the patch to support this
functionality a lot more complex.

-Tony

--
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/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>