From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756214Ab2GBVAK (ORCPT ); Mon, 2 Jul 2012 17:00:10 -0400 Received: from mga01.intel.com ([192.55.52.88]:28136 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752754Ab2GBVAI (ORCPT ); Mon, 2 Jul 2012 17:00:08 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.71,315,1320652800"; d="scan'208";a="187666196" Date: Mon, 2 Jul 2012 14:00:08 -0700 From: Andi Kleen To: Peter Zijlstra Cc: Andi Kleen , x86@kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/5] perf, x86: Enable PDIR precise instruction profiling on IvyBridge Message-ID: <20120702210008.GB14479@tassilo.jf.intel.com> References: <1341254598-1379-1-git-send-email-andi@firstfloor.org> <1341254598-1379-3-git-send-email-andi@firstfloor.org> <1341256733.23484.11.camel@twins> <20120702195744.GG11413@one.firstfloor.org> <1341260540.23484.25.camel@twins> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1341260540.23484.25.camel@twins> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > If anything its an PEBS alias, we have infrastructure for that, yet you > invent new things. Ok. > > You do random things like only :pp for no apparent reason. At which p level do you want it? Or on by default? > > PDIR is only supported on a single counter, regular PEBS 'instructions' > events allow for 4+ counters. Therefore a direct substitution is not > valid. Ok so you want a new flag? Or a new event? -Andi -- ak@linux.intel.com -- Speaking for myself only