[PATCH 3/6] perf timechart: add support for displaying only tasks related data

[Stanislav Fomichev]

In order to make SVG smaller and faster to browse add possibility to
switch off power related information with -T switch.

Signed-off-by: Stanislav Fomichev <stfomichev@xxxxxxxxxxxxxx>
---
 tools/perf/builtin-timechart.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index e6c041301aa4..c7b30a8c7f3b 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -41,6 +41,7 @@
 #define PWR_EVENT_EXIT -1
 
 static int proc_num = 15;
+static bool no_power;
 
 
 static unsigned int	numcpus;
@@ -967,7 +968,8 @@ static void write_svg_file(const char *filename)
 	draw_cpu_usage();
 	if (proc_num)
 		draw_process_bars();
-	draw_c_p_states();
+	if (!no_power)
+		draw_c_p_states();
 	if (proc_num)
 		draw_wakeups();
 
@@ -1076,6 +1078,15 @@ static int __cmd_record(int argc, const char **argv)
 }
 
 static int
+parse_tasks(const struct option *opt __maybe_unused,
+	    const char *arg __maybe_unused,
+	    int unset __maybe_unused)
+{
+	no_power = 1;
+	return 0;
+}
+
+static int
 parse_process(const struct option *opt __maybe_unused, const char *arg,
 	      int __maybe_unused unset)
 {
@@ -1103,6 +1114,8 @@ int cmd_timechart(int argc, const char **argv,
 	OPT_INTEGER('w', "width", &svg_page_width, "page width"),
 	OPT_CALLBACK_NOOPT('P', "power-only", NULL, NULL,
 		     "output power data only", parse_power),
+	OPT_CALLBACK_NOOPT('T', "tasks-only", NULL, NULL,
+		     "output processes data only", parse_tasks),
 	OPT_CALLBACK('p', "process", NULL, "process",
 		      "process selector. Pass a pid or process name.",
 		       parse_process),
-- 
1.8.1.2

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