Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754039Ab0HWRqJ (ORCPT ); Mon, 23 Aug 2010 13:46:09 -0400 Received: from smtp-out.google.com ([74.125.121.35]:56978 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752045Ab0HWRqG (ORCPT ); Mon, 23 Aug 2010 13:46:06 -0400 DomainKey-Signature: a=rsa-sha1; s=beta; d=google.com; c=nofws; q=dns; h=mime-version:in-reply-to:references:from:date:message-id: subject:to:cc:content-type:x-system-of-record; b=kYBx/CugIttIVM4mpixja2y7ZjSg0wi0Ohdrd9AvZWqYOhXC5CgawlwWS3CL/Y7rE V1GIhG5gpOcuzw3fHwkcg== MIME-Version: 1.0 In-Reply-To: <20100821004804.GA11030@localhost> References: <1282296689-25618-1-git-send-email-mrubin@google.com> <1282296689-25618-4-git-send-email-mrubin@google.com> <20100820100855.GC8440@localhost> <20100821004804.GA11030@localhost> From: Michael Rubin Date: Mon, 23 Aug 2010 10:45:41 -0700 Message-ID: Subject: Re: [PATCH 3/4] writeback: nr_dirtied and nr_entered_writeback in /proc/vmstat To: Wu Fengguang Cc: Peter Zijlstra , KOSAKI Motohiro , "linux-kernel@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , "linux-mm@kvack.org" , "jack@suse.cz" , "riel@redhat.com" , "akpm@linux-foundation.org" , "david@fromorbit.com" , "npiggin@kernel.dk" , "hch@lst.de" , "axboe@kernel.dk" Content-Type: text/plain; charset=ISO-8859-1 X-System-Of-Record: true Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 877 Lines: 17 On Fri, Aug 20, 2010 at 5:48 PM, Wu Fengguang wrote: > I wonder if you'll still stick to the fake NUMA scenario two years > later -- when memcg grows powerful enough. What do we do then? "Hey > let's rip these counters, their major consumer has dumped them.." I think the counters will still be useful for NUMA also. Is there a performance hit here I am missing to having the per node counters? Just want to make sure we are only wondering about whether or not we are polluting the interface? Also since we plan to change the name to vmstat instead doesn't that make it more generic in the future? mrubin -- 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/