Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753180Ab2B0N6o (ORCPT ); Mon, 27 Feb 2012 08:58:44 -0500 Received: from mail-qy0-f174.google.com ([209.85.216.174]:35165 "EHLO mail-qy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752593Ab2B0N6n convert rfc822-to-8bit (ORCPT ); Mon, 27 Feb 2012 08:58:43 -0500 Authentication-Results: mr.google.com; spf=pass (google.com: domain of cyfmxc@gmail.com designates 10.224.33.4 as permitted sender) smtp.mail=cyfmxc@gmail.com; dkim=pass header.i=cyfmxc@gmail.com MIME-Version: 1.0 In-Reply-To: References: <4F4484AC.9050500@lge.com> <87ehtnhz9w.fsf@gmail.com> <4F45E9C5.4020900@lge.com> <4F468EBB.9000209@gmail.com> <4F4AF727.2040105@gmail.com> Date: Mon, 27 Feb 2012 08:58:43 -0500 Message-ID: Subject: Re: perf record: can I specify multiple events and use different sample-after value From: Yuanfang Chen To: David Ahern Cc: linux-kernel@vger.kernel.org, Namhyung Kim Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1281 Lines: 41 On Mon, Feb 27, 2012 at 8:56 AM, Yuanfang Chen wrote: > > On Feb 26, 2012 10:23 PM, "David Ahern" wrote: >> >> On 2/24/12 3:41 PM, Yuanfang Chen wrote: >>> >>> I think I'll settle with perf record for now. Still, unlike trace >>> event, sample count is not meaningful for PMU event. Output of "perf >>> script" does not include period value. One line of code will do the >>> work. >>> >>> lude 17342 750118.202915: raw 0x3c: 86754      ffffffff8115f6b9 >>> __mem_cgroup_commit_char >>> lude 17342 750118.203025: raw 0x3c: 1027634   ffffffff811344b9 >>> __mem_cgroup_commit_char >>> >>> 86754, 1027634 is the period value. But I'm not sure which is the PMU >>> value, is it just period value, or period x sample after. If so, what >>> is the sample after value? >> >> >> You lost me. You modified perf-script to print the period? >> >> Are you asking for the PMU counter value for 0x3c? yes >> >> What perf commands are you running? perf script (with no options) > >> >> David -- 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/