Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752667Ab2KFRFV (ORCPT ); Tue, 6 Nov 2012 12:05:21 -0500 Received: from mx1.redhat.com ([209.132.183.28]:55220 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751394Ab2KFRFU (ORCPT ); Tue, 6 Nov 2012 12:05:20 -0500 Date: Tue, 6 Nov 2012 14:05:02 -0300 From: Arnaldo Carvalho de Melo To: Stephane Eranian Cc: LKML , Peter Zijlstra , "mingo@elte.hu" , "ak@linux.intel.com" , Jiri Olsa , Namhyung Kim Subject: Re: [PATCH v2 14/16] perf tools: add new mem command for memory access profiling Message-ID: <20121106170502.GD13629@infradead.org> References: <1352123463-7346-1-git-send-email-eranian@google.com> <1352123463-7346-15-git-send-email-eranian@google.com> <20121106154446.GA13629@infradead.org> <20121106165119.GC13629@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20121106165119.GC13629@infradead.org> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.5.20 (2009-12-10) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1419 Lines: 39 Em Tue, Nov 06, 2012 at 01:51:19PM -0300, Arnaldo Carvalho de Melo escreveu: > Em Tue, Nov 06, 2012 at 04:49:26PM +0100, Stephane Eranian escreveu: > > On Tue, Nov 6, 2012 at 4:44 PM, Arnaldo Carvalho de Melo > > wrote: > > > Em Mon, Nov 05, 2012 at 02:51:01PM +0100, Stephane Eranian escreveu: > > >> + sprintf(event, "cpu/mem-loads/pp"); > > > Fails for me on a Sandy Bridge notebook: > > That's because you need to update the microcode. > > > $ sudo modprobe microcode > > $ cat /proc/cpuinfo > > Line with microcode needs to say: > > microcode : 0x28 > Here it says: > microcode : 0x25 Updated it and now I have 0x28, better: Samples: 8K of event 'cpu/mem-loads/pp', Event count (approx.): 89255 0.75% 1 665 L3 hit [.] arena_run_tree_remove 0.67% 1 602 LFB hit [.] nsSMILAnimationController::DoSample(bool) 0.63% 1 563 Local RAM hit [.] 0x00000000004620c4 0.58% 1 515 Local RAM hit [.] 0x00007f6b278aa7bc 0.54% 1 479 L2 hit [.] XPending 0.33% 1 292 Local RAM hit [.] nsSVGFEMorphologyElement::Filter(nsSVGFilterInstance*, nsTArray< Will do more tests after lunch, - Arnaldo -- 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/