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- ===================
- rtla-osnoise-hist
- ===================
- ------------------------------------------------------
- Display a histogram of the osnoise tracer samples
- ------------------------------------------------------
- :Manual section: 1
- SYNOPSIS
- ========
- **rtla osnoise hist** [*OPTIONS*]
- DESCRIPTION
- ===========
- .. include:: common_osnoise_description.rst
- 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.
- OPTIONS
- =======
- .. include:: common_osnoise_options.rst
- .. include:: common_hist_options.rst
- .. include:: common_options.rst
- EXAMPLE
- =======
- In the example below, *osnoise* tracer threads are set to run with real-time
- priority *FIFO:1*, on CPUs *0-11*, for *900ms* at each period (*1s* by
- default). The reason for reducing the runtime is to avoid starving the
- **rtla** tool. The tool is also set to run for *one minute*. The output
- histogram is set to group outputs in buckets of *10us* and *25* entries::
- [root@f34 ~/]# rtla osnoise hist -P F:1 -c 0-11 -r 900000 -d 1M -b 10 -E 25
- # 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 CPU-009 CPU-010 CPU-011
- 0 42982 46287 51779 53740 52024 44817 49898 36500 50408 50128 49523 52377
- 10 12224 8356 2912 878 2667 10155 4573 18894 4214 4836 5708 2413
- 20 8 5 12 2 13 24 20 41 29 53 39 39
- 30 1 1 0 0 10 3 6 19 15 31 30 38
- 40 0 0 0 0 0 4 2 7 2 3 8 11
- 50 0 0 0 0 0 0 0 0 0 1 1 2
- over: 0 0 0 0 0 0 0 0 0 0 0 0
- count: 55215 54649 54703 54620 54714 55003 54499 55461 54668 55052 55309 54880
- min: 0 0 0 0 0 0 0 0 0 0 0 0
- avg: 0 0 0 0 0 0 0 0 0 0 0 0
- max: 30 30 20 20 30 40 40 40 40 50 50 50
- SEE ALSO
- ========
- **rtla-osnoise**\(1), **rtla-osnoise-top**\(1)
- *osnoise* tracer documentation: <https://www.kernel.org/doc/html/latest/trace/osnoise-tracer.html>
- AUTHOR
- ======
- Written by Daniel Bristot de Oliveira <[email protected]>
- .. include:: common_appendix.rst
|
