From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934919Ab0EEObr (ORCPT ); Wed, 5 May 2010 10:31:47 -0400 Received: from bombadil.infradead.org ([18.85.46.34]:41413 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934136Ab0EEOa6 (ORCPT ); Wed, 5 May 2010 10:30:58 -0400 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Arnaldo Carvalho de Melo , =?utf-8?q?Fr=C3=A9d=C3=A9ric=20Weisbecker?= , Mike Galbraith , Nick Black , Paul Mackerras , Peter Zijlstra , Tom Zanussi Subject: [PATCH 3/4] perf list: Add explanation about raw hardware event descriptors Date: Wed, 5 May 2010 11:30:47 -0300 Message-Id: <1273069848-22934-4-git-send-email-acme@infradead.org> X-Mailer: git-send-email 1.6.2.5 In-Reply-To: <1273069848-22934-1-git-send-email-acme@infradead.org> References: <1273069848-22934-1-git-send-email-acme@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Arnaldo Carvalho de Melo Using explanation given by Ingo Molnar in the oprofile mailing list. Suggested-by: Nick Black Cc: Frédéric Weisbecker Cc: Mike Galbraith Cc: Nick Black Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Tom Zanussi LKML-Reference: Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Documentation/perf-list.txt | 18 ++++++++++++++++++ tools/perf/util/parse-events.c | 2 +- 2 files changed, 19 insertions(+), 1 deletions(-) diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt index 8290b94..ad765e0 100644 --- a/tools/perf/Documentation/perf-list.txt +++ b/tools/perf/Documentation/perf-list.txt @@ -15,6 +15,24 @@ DESCRIPTION This command displays the symbolic event types which can be selected in the various perf commands with the -e option. +RAW HARDWARE EVENT DESCRIPTOR +----------------------------- +Even when an event is not available in a symbolic form within perf right now, +it can be encoded as , for instance, if the Intel docs +describe an event as: + + Event Umask Event Mask + Num. Value Mnemonic Description Comment + + A8H 01H LSD.UOPS Counts the number of micro-ops Use cmask=1 and + delivered by loop stream detector invert to count + cycles + +raw encoding of 0x1A8 can be used: + + perf stat -e r1a8 -a sleep 1 + perf record -e r1a8 ... + OPTIONS ------- None diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 600d327..bc8b7e6 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -936,7 +936,7 @@ void print_events(void) printf("\n"); printf(" %-42s [%s]\n", - "rNNN", event_type_descriptors[PERF_TYPE_RAW]); + "rNNN (NNN=)", event_type_descriptors[PERF_TYPE_RAW]); printf("\n"); printf(" %-42s [%s]\n", -- 1.6.2.5