4 Commits

Author SHA1 Message Date
Xie XiuQi
81ec384b80 rtla: fix a example in rtla-timerlat-hist.rst
The following error message is reported when running the example in document.

  # timerlat hist -d 10m -c 0-4 -P d:100us:1ms -p 1ms --no-aa
  Failed to set timerlat period
  Could not apply config

The unit of the period is microsecond, '1ms' cannot be accepted.

  usage: [rtla] timerlat hist [-h] [-q] [-d s] [-D] [-n] [-a us] [-p us] [-i us] [-T us] [-s us] ...
         ...
	  -p/--period us: timerlat period in us
         ...

Also fix another minor missleading comment.

Link: https://lore.kernel.org/lkml/20230919133028.697144-1-xiexiuqi@huaweicloud.com

Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
2023-09-22 14:44:04 +02:00
Daniel Bristot de Oliveira
2091336b9a rtla/timerlat_hist: Add auto-analysis support
Add auto-analysis to timerlat hist, including the --no-aa option to
reduce overhead and --dump-task. --aa-only was not added as it is
already on timerlat top.

Link: https://lkml.kernel.org/r/c2693f47ee83e659a7723fed8035f5d2534f528e.1686066600.git.bristot@kernel.org

Cc: William White <chwhite@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Tested-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-06-13 16:35:46 -04:00
Alexandre Vicenzi
f1432cd24c rtla: Fix tracer name
The correct tracer name is timerlat and not timelat.

Link: https://lore.kernel.org/linux-trace-devel/20220808180343.22262-1-alexandre.vicenzi@suse.com

Signed-off-by: Alexandre Vicenzi <alexandre.vicenzi@suse.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-08-10 11:43:59 -04:00
Daniel Bristot de Oliveira
5dce5904e3 rtla: Add rtla timerlat hist documentation
Man page for rtla timerlat hist mode.

Link: https://lkml.kernel.org/r/4a184003fdb81e23be3fe5ec882b1c89d5a95458.1639158831.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>
2022-01-13 17:02:44 -05:00