From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754603Ab3LQUw3 (ORCPT ); Tue, 17 Dec 2013 15:52:29 -0500 Received: from merlin.infradead.org ([205.233.59.134]:56155 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754432Ab3LQUwW (ORCPT ); Tue, 17 Dec 2013 15:52:22 -0500 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Stanislav Fomichev , Ingo Molnar , Jiri Olsa , Namhyung Kim , Paul Mackerras , Peter Zijlstra , Ramkumar Ramachandra , Arnaldo Carvalho de Melo Subject: [PATCH 02/10] perf timechart: Add backtrace support to CPU info Date: Tue, 17 Dec 2013 17:52:03 -0300 Message-Id: <1387313531-14629-3-git-send-email-acme@infradead.org> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1387313531-14629-1-git-send-email-acme@infradead.org> References: <1387313531-14629-1-git-send-email-acme@infradead.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by merlin.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: Stanislav Fomichev Add backtrace info to the CPU usage timechart. Signed-off-by: Stanislav Fomichev Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Ramkumar Ramachandra Link: http://lkml.kernel.org/r/1385995056-20158-2-git-send-email-stfomichev@yandex-team.ru Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-timechart.c | 10 ++++++++-- tools/perf/util/svghelper.c | 4 +++- tools/perf/util/svghelper.h | 2 +- 3 files changed, 12 insertions(+), 4 deletions(-) diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c index 0bda620a717d..d955095b6d63 100644 --- a/tools/perf/builtin-timechart.c +++ b/tools/perf/builtin-timechart.c @@ -837,8 +837,14 @@ static void draw_cpu_usage(struct timechart *tchart) while (c) { sample = c->samples; while (sample) { - if (sample->type == TYPE_RUNNING) - svg_process(sample->cpu, sample->start_time, sample->end_time, "sample", c->comm); + if (sample->type == TYPE_RUNNING) { + svg_process(sample->cpu, + sample->start_time, + sample->end_time, + "sample", + c->comm, + sample->backtrace); + } sample = sample->next; } diff --git a/tools/perf/util/svghelper.c b/tools/perf/util/svghelper.c index 8b79d3ad1246..740f0328fc13 100644 --- a/tools/perf/util/svghelper.c +++ b/tools/perf/util/svghelper.c @@ -285,7 +285,7 @@ void svg_cpu_box(int cpu, u64 __max_freq, u64 __turbo_freq) fprintf(svgfile, "\n"); } -void svg_process(int cpu, u64 start, u64 end, const char *type, const char *name) +void svg_process(int cpu, u64 start, u64 end, const char *type, const char *name, const char *backtrace) { double width; @@ -295,6 +295,8 @@ void svg_process(int cpu, u64 start, u64 end, const char *type, const char *name fprintf(svgfile, "\n", time2pixels(start), cpu2y(cpu)); fprintf(svgfile, "%s %s\n", name, time_to_string(end - start)); + if (backtrace) + fprintf(svgfile, "Switched because:\n%s\n", backtrace); fprintf(svgfile, "\n", time2pixels(end)-time2pixels(start), SLOT_MULT+SLOT_HEIGHT, type); width = time2pixels(end)-time2pixels(start); diff --git a/tools/perf/util/svghelper.h b/tools/perf/util/svghelper.h index fad79ceeac1a..7db6ae98bf2c 100644 --- a/tools/perf/util/svghelper.h +++ b/tools/perf/util/svghelper.h @@ -11,7 +11,7 @@ extern void svg_waiting(int Yslot, int cpu, u64 start, u64 end, const char *back extern void svg_cpu_box(int cpu, u64 max_frequency, u64 turbo_frequency); -extern void svg_process(int cpu, u64 start, u64 end, const char *type, const char *name); +extern void svg_process(int cpu, u64 start, u64 end, const char *type, const char *name, const char *backtrace); extern void svg_cstate(int cpu, u64 start, u64 end, int type); extern void svg_pstate(int cpu, u64 start, u64 end, u64 freq); -- 1.8.1.4