Commit-ID: c87097d39dae1c42a5068e00dd3b76a4162ee0fc
Gitweb: http://git.kernel.org/tip/c87097d39dae1c42a5068e00dd3b76a4162ee0fc
Author: Stanislav Fomichev <stfomichev@xxxxxxxxxxxxxx>
AuthorDate: Fri, 1 Nov 2013 20:25:48 +0400
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 27 Nov 2013 14:58:37 -0300
perf timechart: Add support for displaying only tasks related data
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>
Acked-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1383323151-19810-5-git-send-email-stfomichev@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/Documentation/perf-timechart.txt | 3 +++
tools/perf/builtin-timechart.c | 11 ++++++++++-
2 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/tools/perf/Documentation/perf-timechart.txt b/tools/perf/Documentation/perf-timechart.txt
index 4373144..d844189 100644
--- a/tools/perf/Documentation/perf-timechart.txt
+++ b/tools/perf/Documentation/perf-timechart.txt
@@ -35,6 +35,9 @@ OPTIONS
-P::
--power-only::
Only output the CPU power section of the diagram
+-T::
+--tasks-only::
+ Don't output processor state transitions
-p::
--process::
Select the processes to display, by name or PID
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index 6410c9e..b3f175a 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -51,6 +51,7 @@ static u64 turbo_frequency;
static u64 first_time, last_time;
static bool power_only;
+static bool tasks_only;
struct per_pid;
@@ -971,7 +972,8 @@ static void write_svg_file(const char *filename)
draw_cpu_usage();
if (proc_num)
draw_process_bars();
- draw_c_p_states();
+ if (!tasks_only)
+ draw_c_p_states();
if (proc_num)
draw_wakeups();
@@ -1102,6 +1104,8 @@ int cmd_timechart(int argc, const char **argv,
OPT_STRING('o', "output", &output_name, "file", "output file name"),
OPT_INTEGER('w', "width", &svg_page_width, "page width"),
OPT_BOOLEAN('P', "power-only", &power_only, "output power data only"),
+ OPT_BOOLEAN('T', "tasks-only", &tasks_only,
+ "output processes data only"),
OPT_CALLBACK('p', "process", NULL, "process",
"process selector. Pass a pid or process name.",
parse_process),
@@ -1119,6 +1123,11 @@ int cmd_timechart(int argc, const char **argv,
argc = parse_options(argc, argv, options, timechart_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
+ if (power_only && tasks_only) {
+ pr_err("-P and -T options cannot be used at the same time.\n");
+ return -1;
+ }
+
symbol__init();
if (argc && !strncmp(argv[0], "rec", 3))
--
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