From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756538AbdKCN4b (ORCPT ); Fri, 3 Nov 2017 09:56:31 -0400 Received: from mail.kernel.org ([198.145.29.99]:60872 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756504AbdKCN42 (ORCPT ); Fri, 3 Nov 2017 09:56:28 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C6C6B2193B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=acme@kernel.org From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Jiri Olsa , Andi Kleen , Changbin Du , David Ahern , Namhyung Kim , Peter Zijlstra , Wang Nan , Arnaldo Carvalho de Melo Subject: [PATCH 13/19] perf stat: Make --per-thread update shadow stats to show metrics Date: Fri, 3 Nov 2017 10:54:57 -0300 Message-Id: <20171103135503.4921-14-acme@kernel.org> X-Mailer: git-send-email 2.13.6 In-Reply-To: <20171103135503.4921-1-acme@kernel.org> References: <20171103135503.4921-1-acme@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jiri Olsa We should support this because it would allow easily to collect metrics for different threads in applications. Original patch from posted by Jin Yao in here [1]. 1. Current output, for example: root@skl:/tmp# perf stat --per-thread -p 21623 ^C Performance counter stats for process id '21623': vmstat-21623 0.517479 task-clock (msec) # 0.000 CPUs utilized vmstat-21623 1 context-switches vmstat-21623 0 cpu-migrations vmstat-21623 0 page-faults vmstat-21623 461,306 cycles vmstat-21623 630,724 instructions vmstat-21623 136,265 branches vmstat-21623 2,520 branch-misses 1.444020756 seconds time elapsed root@skl:/tmp# perf stat --per-thread --metrics ipc -p 21623 ^C Performance counter stats for process id '21623': vmstat-21623 631,185 inst_retired.any vmstat-21623 605,893 cpu_clk_unhalted.thread 1.415679293 seconds time elapsed 2. With this patch, the result would be: root@skl:/tmp# perf stat --per-thread -p 21623 ^C Performance counter stats for process id '21623': vmstat-21623 0.533759 task-clock (msec) # 0.000 CPUs utilized vmstat-21623 1 context-switches # 0.002 M/sec vmstat-21623 0 cpu-migrations # 0.000 K/sec vmstat-21623 0 page-faults # 0.000 K/sec vmstat-21623 473,896 cycles # 0.888 GHz vmstat-21623 631,072 instructions # 1.33 insn per cycle vmstat-21623 136,307 branches # 255.372 M/sec vmstat-21623 2,524 branch-misses # 1.85% of all branches 1.544862861 seconds time elapsed root@skl:/tmp# perf stat --per-thread --metrics ipc -p 21623 ^C Performance counter stats for process id '21623': vmstat-21623 1,259,104 inst_retired.any # 1.2 IPC vmstat-21623 1,056,756 cpu_clk_unhalted.thread 2.040954502 seconds time elapsed [1] https://marc.info/?l=linux-kernel&m=150777054620511&w=2 Originally-from: Jin Yao Signed-off-by: Jiri Olsa Cc: Andi Kleen Cc: Changbin Du Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Wang Nan Link: http://lkml.kernel.org/n/tip-tr8ntktxmy4qc5769ajg5u6c@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/stat.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c index ef00c91e2553..203f5d8d11d1 100644 --- a/tools/perf/util/stat.c +++ b/tools/perf/util/stat.c @@ -278,6 +278,8 @@ process_counter_values(struct perf_stat_config *config, struct perf_evsel *evsel perf_counts_values__scale(count, config->scale, NULL); if (config->aggr_mode == AGGR_NONE) perf_stat__update_shadow_stats(evsel, count->val, cpu); + if (config->aggr_mode == AGGR_THREAD) + perf_stat__update_shadow_stats(evsel, count->val, 0); break; case AGGR_GLOBAL: aggr->val += count->val; -- 2.13.6