Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761302AbZLJReZ (ORCPT ); Thu, 10 Dec 2009 12:34:25 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761266AbZLJReY (ORCPT ); Thu, 10 Dec 2009 12:34:24 -0500 Received: from nlpi157.sbcis.sbc.com ([207.115.36.171]:53012 "EHLO nlpi157.prodigy.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761259AbZLJReY (ORCPT ); Thu, 10 Dec 2009 12:34:24 -0500 Date: Thu, 10 Dec 2009 11:34:03 -0600 (CST) From: Christoph Lameter X-X-Sender: cl@router.home To: Ingo Molnar cc: KAMEZAWA Hiroyuki , Peter Zijlstra , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , "akpm@linux-foundation.org" , minchan.kim@gmail.com Subject: Re: [RFC mm][PATCH 2/5] percpu cached mm counter In-Reply-To: <20091210075454.GB25549@elte.hu> Message-ID: References: <20091210163115.463d96a3.kamezawa.hiroyu@jp.fujitsu.com> <20091210163448.338a0bd2.kamezawa.hiroyu@jp.fujitsu.com> <20091210075454.GB25549@elte.hu> User-Agent: Alpine 2.00 (DEB 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 749 Lines: 18 On Thu, 10 Dec 2009, Ingo Molnar wrote: > I.e. why not expose these stats via perf events and counts as well, > beyond the current (rather minimal) set of MM stats perf supports > currently? Certainly one can write perf events that do a simular thing but that is beyond the scope of the work here. This is the result of a test program. The point here is to avoid fault regressions while introducing new process specific counters that are then used by other VM code to make decisions about a process. -- 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/