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| author | Daniel Bristot de Oliveira <bristot@kernel.org> | 2021-12-10 21:11:24 +0300 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2022-01-14 01:02:43 +0300 |
| commit | 829a6c0b5698c7d51aa2bcd16963fcd9de295476 (patch) | |
| tree | d830cd50ee0d918c5563f4ee3e2f106b740c0ae8 /tools/tracing/rtla/src/osnoise.c | |
| parent | 1eceb2fc2ca549a170d7ee7cd1fde2daeda646ac (diff) | |
| download | linux-829a6c0b5698c7d51aa2bcd16963fcd9de295476.tar.xz | |
rtla/osnoise: Add the hist mode
The rtla osnoise hist tool collects all osnoise:sample_threshold
occurrence in a histogram, displaying the results in a user-friendly
way. The tool also allows many configurations of the osnoise tracer
and the collection of the tracer output.
Here is one example of the rtla osnoise hist tool output:
---------- %< ----------
[root@f34 ~]# rtla osnoise hist --bucket-size 10 --entries 100 -c 0-8 -d 1M -r 9000 -P F:1
# RTLA osnoise histogram
# Time unit is microseconds (us)
# Duration: 0 00:01:00
Index CPU-000 CPU-001 CPU-002 CPU-003 CPU-004 CPU-005 CPU-006 CPU-007 CPU-008
0 430 434 352 455 440 463 467 436 484
10 88 88 92 141 120 100 126 166 100
20 19 7 12 22 8 8 13 13 16
30 6 0 2 0 1 2 2 1 0
50 0 0 0 0 0 0 1 0 0
over: 0 0 0 0 0 0 0 0 0
count: 543 529 458 618 569 573 609 616 600
min: 0 0 0 0 0 0 0 0 0
avg: 0 0 0 0 0 0 0 0 0
max: 30 20 30 20 30 30 50 30 20
---------- >% ----------
Running
- rtla osnoise hist --help
provides information about the available options.
Link: https://lkml.kernel.org/r/c68060544de89b8b62510ed91c7369f162eb465b.1639158831.git.bristot@kernel.org
Cc: Tao Zhou <tao.zhou@linux.dev>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Tom Zanussi <zanussi@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Clark Williams <williams@redhat.com>
Cc: John Kacur <jkacur@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Daniel Bristot de Oliveira <bristot@kernel.org>
Cc: linux-rt-users@vger.kernel.org
Cc: linux-trace-devel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'tools/tracing/rtla/src/osnoise.c')
| -rw-r--r-- | tools/tracing/rtla/src/osnoise.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/tools/tracing/rtla/src/osnoise.c b/tools/tracing/rtla/src/osnoise.c index fbf4f9bfda02..7b73d1eccd0e 100644 --- a/tools/tracing/rtla/src/osnoise.c +++ b/tools/tracing/rtla/src/osnoise.c @@ -828,7 +828,8 @@ static void osnoise_usage(void) " usage: [rtla] osnoise [MODE] ...", "", " modes:", - " top - prints the summary from osnoise tracer", + " top - prints the summary from osnoise tracer", + " hist - prints a histogram of osnoise samples", "", "if no MODE is given, the top mode is called, passing the arguments", NULL, @@ -863,6 +864,9 @@ int osnoise_main(int argc, char *argv[]) } else if (strcmp(argv[1], "top") == 0) { osnoise_top_main(argc-1, &argv[1]); exit(0); + } else if (strcmp(argv[1], "hist") == 0) { + osnoise_hist_main(argc-1, &argv[1]); + exit(0); } usage: |