From 39a90a8ef17fe6fbf4b45e46e3c10d3b8b4a3dea Mon Sep 17 00:00:00 2001 From: Arjan van de Ven Date: Thu, 24 Sep 2009 15:40:13 +0200 Subject: perf timechart: Add a power-only mode For doing work on the Linux power management components, I need to make long (30+ seconds) traces. Currently, this then results in a HUGE svg file, with mostly process data that isn't interesting. This patch adds a --power-only mode to perf timechart that only outputs the CPU power section of the SVG; this significantly reduces the size of the SVG file, making even 30+ second traces viewable with inkscape. As a minor tweak for the same effect, the minimum text size is decreased; current inkscape cannot zoom in deep enough to show text this small, but it reduces inkscape compute time. Signed-off-by: Arjan van de Ven Cc: peterz@infradead.org LKML-Reference: <20090924154013.0675ab71@infradead.org> Signed-off-by: Ingo Molnar --- tools/perf/builtin-timechart.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) (limited to 'tools/perf/builtin-timechart.c') diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c index 4405681b3134..702d8fe58fbc 100644 --- a/tools/perf/builtin-timechart.c +++ b/tools/perf/builtin-timechart.c @@ -46,6 +46,8 @@ static u64 turbo_frequency; static u64 first_time, last_time; +static int power_only; + static struct perf_header *header; @@ -547,7 +549,7 @@ static void end_sample_processing(void) u64 cpu; struct power_event *pwr; - for (cpu = 0; cpu < numcpus; cpu++) { + for (cpu = 0; cpu <= numcpus; cpu++) { pwr = malloc(sizeof(struct power_event)); if (!pwr) return; @@ -871,7 +873,7 @@ static int determine_display_tasks(u64 threshold) /* no exit marker, task kept running to the end */ if (p->end_time == 0) p->end_time = last_time; - if (p->total_time >= threshold) + if (p->total_time >= threshold && !power_only) p->display = 1; c = p->all; @@ -882,7 +884,7 @@ static int determine_display_tasks(u64 threshold) if (c->start_time == 1) c->start_time = first_time; - if (c->total_time >= threshold) { + if (c->total_time >= threshold && !power_only) { c->display = 1; count++; } @@ -1134,6 +1136,8 @@ static const struct option options[] = { "output file name"), OPT_INTEGER('w', "width", &svg_page_width, "page width"), + OPT_BOOLEAN('p', "power-only", &power_only, + "output power data only"), OPT_END() }; -- cgit v1.2.3