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| author | Stanislav Fomichev <stfomichev@yandex-team.ru> | 2013-12-02 18:37:33 +0400 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-12-16 16:33:14 -0300 |
| commit | 8b6dcca017aa53fe13066411a653b5997c158a2c (patch) | |
| tree | 63d8edc91fbb2eacc26fc6f88051a17db1152d13 /tools/perf | |
| parent | 553873e1df63a20559ac9c336765dc7055cfc3d4 (diff) | |
| download | lwn-8b6dcca017aa53fe13066411a653b5997c158a2c.tar.gz lwn-8b6dcca017aa53fe13066411a653b5997c158a2c.zip | |
perf timechart: Add backtrace support to CPU info
Add backtrace info to the CPU usage timechart.
Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ramkumar Ramachandra <artagnon@gmail.com>
Link: http://lkml.kernel.org/r/1385995056-20158-2-git-send-email-stfomichev@yandex-team.ru
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/builtin-timechart.c | 10 | ||||
| -rw-r--r-- | tools/perf/util/svghelper.c | 4 | ||||
| -rw-r--r-- | 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, "</g>\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, "<g transform=\"translate(%4.8f,%4.8f)\">\n", time2pixels(start), cpu2y(cpu)); fprintf(svgfile, "<title>%s %s</title>\n", name, time_to_string(end - start)); + if (backtrace) + fprintf(svgfile, "<desc>Switched because:\n%s</desc>\n", backtrace); fprintf(svgfile, "<rect x=\"0\" width=\"%4.8f\" y=\"0\" height=\"%4.1f\" class=\"%s\"/>\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); |