Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755947AbZFYGuD (ORCPT ); Thu, 25 Jun 2009 02:50:03 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751214AbZFYGty (ORCPT ); Thu, 25 Jun 2009 02:49:54 -0400 Received: from viefep19-int.chello.at ([62.179.121.39]:56702 "EHLO viefep19-int.chello.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751207AbZFYGty (ORCPT ); Thu, 25 Jun 2009 02:49:54 -0400 X-SourceIP: 213.93.53.227 Subject: Re: performance counter 20% error finding retired instruction count From: Peter Zijlstra To: Vince Weaver Cc: Ingo Molnar , Paul Mackerras , linux-kernel@vger.kernel.org In-Reply-To: References: <20090624151010.GA12799@elte.hu> Content-Type: text/plain Date: Thu, 25 Jun 2009 08:50:00 +0200 Message-Id: <1245912600.31755.21.camel@twins> Mime-Version: 1.0 X-Mailer: Evolution 2.26.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 626 Lines: 14 On Wed, 2009-06-24 at 22:12 -0400, Vince Weaver wrote: > > It's also nice to be able to skip the loader overhead, as the loader can > change from system to system and makes it hard to compare counters across > various machines. Though it sounds like the perf utility isn't going to > be supporting this anytime soon. Feel free to contribute such if you think its important. -- 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/