Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752143AbZFKQz1 (ORCPT ); Thu, 11 Jun 2009 12:55:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751459AbZFKQzQ (ORCPT ); Thu, 11 Jun 2009 12:55:16 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:43386 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751299AbZFKQzP (ORCPT ); Thu, 11 Jun 2009 12:55:15 -0400 Date: Thu, 11 Jun 2009 09:54:41 -0700 (PDT) From: Linus Torvalds X-X-Sender: torvalds@localhost.localdomain To: Christoph Hellwig cc: Marcel Holtmann , Ingo Molnar , "David S. Miller" , Stephane Eranian , linux-kernel@vger.kernel.org, Paul Mackerras , Peter Zijlstra , Andrew Morton , Thomas Gleixner Subject: Re: [GIT PULL] Performance Counters for Linux In-Reply-To: <20090611164656.GA12202@infradead.org> Message-ID: References: <20090611160329.GA3366@elte.hu> <20090611161714.GA5008@infradead.org> <1244738098.27363.36.camel@violet> <20090611164656.GA12202@infradead.org> User-Agent: Alpine 2.01 (LFD 1184 2008-12-16) 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: 963 Lines: 26 On Thu, 11 Jun 2009, Christoph Hellwig wrote: > > Did you take a look a tools/perf/? There is nothing close to hardware > at all. It's all pretty highly abstracted away from anything resembling > the hardware through the perfcounters interface. The thing is, the raw perfcounters interface isn't going to be useful as is. And I have seen where things go when you split them up. So when I get the choice, I'll go down the road of unproven failure, in the hope that it will be successful, rather than doing the same mistake once more. "Insanity: doing the same thing over and over, expecting to get different results." And I'm not insane. Anyway, feel free to disagree. I just don't care. Linus -- 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/