From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753920Ab1D3HQx (ORCPT ); Sat, 30 Apr 2011 03:16:53 -0400 Received: from hera.kernel.org ([140.211.167.34]:53423 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751575Ab1D3HQw (ORCPT ); Sat, 30 Apr 2011 03:16:52 -0400 Date: Sat, 30 Apr 2011 07:16:24 GMT From: tip-bot for David Ahern Message-ID: Cc: linux-kernel@vger.kernel.org, acme@redhat.com, hpa@zytor.com, mingo@redhat.com, a.p.zijlstra@chello.nl, fweisbec@gmail.com, dsahern@gmail.com, tglx@linutronix.de, mingo@elte.hu Reply-To: mingo@redhat.com, hpa@zytor.com, acme@redhat.com, linux-kernel@vger.kernel.org, fweisbec@gmail.com, a.p.zijlstra@chello.nl, dsahern@gmail.com, tglx@linutronix.de, mingo@elte.hu In-Reply-To: <1304114655-10600-1-git-send-email-dsahern@gmail.com> References: <1304114655-10600-1-git-send-email-dsahern@gmail.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/stat] perf stat: Tell user about unsupported events in the list Git-Commit-ID: c63ca0c01d73563d4e2ab174bb3dd1e5efb907e6 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.3 (hera.kernel.org [127.0.0.1]); Sat, 30 Apr 2011 07:16:30 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: c63ca0c01d73563d4e2ab174bb3dd1e5efb907e6 Gitweb: http://git.kernel.org/tip/c63ca0c01d73563d4e2ab174bb3dd1e5efb907e6 Author: David Ahern AuthorDate: Fri, 29 Apr 2011 16:04:15 -0600 Committer: Ingo Molnar CommitDate: Sat, 30 Apr 2011 00:18:14 +0200 perf stat: Tell user about unsupported events in the list Similar to perf-record, tell user about unsupported events that will not be counted if invoked in verbose mode. e.g., $ perf stat -e dTLB-prefetch-misses -v -- sleep 1 dTLB-prefetch-misses event is not supported by the kernel. dTLB-prefetch-misses: 0 0 0 Performance counter stats for 'sleep 1': dTLB-prefetch-misses 1.001884783 seconds time elapsed Signed-off-by: David Ahern Cc: Peter Zijlstra Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker Link: http://lkml.kernel.org/r/1304114655-10600-1-git-send-email-dsahern@gmail.com Signed-off-by: Ingo Molnar --- tools/perf/builtin-stat.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-) diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index c8b535b..602c3c9 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -377,8 +377,12 @@ static int run_perf_stat(int argc __used, const char **argv) list_for_each_entry(counter, &evsel_list->entries, node) { if (create_perf_stat_counter(counter) < 0) { - if (errno == EINVAL || errno == ENOSYS || errno == ENOENT) + if (errno == EINVAL || errno == ENOSYS || errno == ENOENT) { + if (verbose) + ui__warning("%s event is not supported by the kernel.\n", + event_name(counter)); continue; + } if (errno == EPERM || errno == EACCES) { error("You may not have permission to collect %sstats.\n"