From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail191.messagelabs.com (mail191.messagelabs.com [216.82.242.19]) by kanga.kvack.org (Postfix) with ESMTP id 8584C6B0095 for ; Mon, 8 Nov 2010 17:51:18 -0500 (EST) From: Greg Thelen Subject: Re: [patch 4/4] memcg: use native word page statistics counters References: <1288973333-7891-1-git-send-email-minchan.kim@gmail.com> <20101106010357.GD23393@cmpxchg.org> <20101107215030.007259800@cmpxchg.org> <20101107220353.964566018@cmpxchg.org> Date: Mon, 08 Nov 2010 14:51:01 -0800 In-Reply-To: (Minchan Kim's message of "Mon, 8 Nov 2010 09:01:54 +0900") Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Sender: owner-linux-mm@kvack.org To: Minchan Kim Cc: Johannes Weiner , Andrew Morton , Dave Young , Andrea Righi , KAMEZAWA Hiroyuki , Daisuke Nishimura , Balbir Singh , Wu Fengguang , linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: Minchan Kim writes: > On Mon, Nov 8, 2010 at 7:14 AM, Johannes Weiner wrot= e: >> The statistic counters are in units of pages, there is no reason to >> make them 64-bit wide on 32-bit machines. >> >> Make them native words. =C2=A0Since they are signed, this leaves 31 bit = on >> 32-bit machines, which can represent roughly 8TB assuming a page size >> of 4k. >> >> Signed-off-by: Johannes Weiner > Reviewed-by: Minchan Kim Reviewed-by: Greg Thelen -- 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 policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: email@kvack.org