From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932952AbbHIGsT (ORCPT ); Sun, 9 Aug 2015 02:48:19 -0400 Received: from mail-pd0-f173.google.com ([209.85.192.173]:35463 "EHLO mail-pd0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932919AbbHIGsN (ORCPT ); Sun, 9 Aug 2015 02:48:13 -0400 From: Namhyung Kim To: Arnaldo Carvalho de Melo Cc: Ingo Molnar , Peter Zijlstra , Jiri Olsa , LKML , David Ahern Subject: [PATCH 2/2] perf evlist: Be more specific on -F/--freq Date: Sun, 9 Aug 2015 15:45:24 +0900 Message-Id: <1439102724-14079-2-git-send-email-namhyung@kernel.org> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1439102724-14079-1-git-send-email-namhyung@kernel.org> References: <1439102724-14079-1-git-send-email-namhyung@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Currently perf evlist -F shows the number as if it's always sampling frequency. But we now support per-event freq/period settings. So it'd better to show more detailed info whether it's freq or period. $ perf record -e 'cpu/config=1/,cpu/config=2,period=300000/' sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.017 MB perf.data ] $ perf evlist -F cpu/config=1/: sample_freq=4000 cpu/config=2,period=300000/: sample_period=300000 Signed-off-by: Namhyung Kim --- tools/perf/util/evsel.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index f664a22b5fea..04fddddc6b6f 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -2158,8 +2158,13 @@ int perf_evsel__fprintf(struct perf_evsel *evsel, printed += perf_event_attr__fprintf(fp, &evsel->attr, __print_attr__fprintf, &first); } else if (details->freq) { - printed += comma_fprintf(fp, &first, " sample_freq=%" PRIu64, - (u64)evsel->attr.sample_freq); + const char *term = "sample_freq"; + + if (!evsel->attr.freq) + term = "sample_period"; + + printed += comma_fprintf(fp, &first, " %s=%" PRIu64, + term, (u64)evsel->attr.sample_freq); } out: fputc('\n', fp); -- 2.5.0