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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>
hifive-unleashed-5.1
Stanislav Fomichev 2013-12-02 18:37:33 +04:00 committed by Arnaldo Carvalho de Melo
parent 553873e1df
commit 8b6dcca017
3 changed files with 12 additions and 4 deletions
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10
tools/perf/builtin-timechart.c
View File

@ -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;
}

4
tools/perf/util/svghelper.c
View File

@ -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);

2
tools/perf/util/svghelper.h
View File

@ -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);