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1===================2rtla-osnoise-hist3===================4------------------------------------------------------5Display a histogram of the osnoise tracer samples6------------------------------------------------------7 8:Manual section: 19 10SYNOPSIS11========12**rtla osnoise hist** [*OPTIONS*]13 14DESCRIPTION15===========16.. include:: common_osnoise_description.rst17 18The **rtla osnoise hist** tool collects all **osnoise:sample_threshold**19occurrence in a histogram, displaying the results in a user-friendly way.20The tool also allows many configurations of the *osnoise* tracer and the21collection of the tracer output.22 23OPTIONS24=======25.. include:: common_osnoise_options.rst26 27.. include:: common_hist_options.rst28 29.. include:: common_options.rst30 31EXAMPLE32=======33In the example below, *osnoise* tracer threads are set to run with real-time34priority *FIFO:1*, on CPUs *0-11*, for *900ms* at each period (*1s* by35default). The reason for reducing the runtime is to avoid starving the36**rtla** tool. The tool is also set to run for *one minute*. The output37histogram is set to group outputs in buckets of *10us* and *25* entries::38 39 [root@f34 ~/]# rtla osnoise hist -P F:1 -c 0-11 -r 900000 -d 1M -b 10 -E 2540 # RTLA osnoise histogram41 # Time unit is microseconds (us)42 # Duration: 0 00:01:0043 Index CPU-000 CPU-001 CPU-002 CPU-003 CPU-004 CPU-005 CPU-006 CPU-007 CPU-008 CPU-009 CPU-010 CPU-01144 0 42982 46287 51779 53740 52024 44817 49898 36500 50408 50128 49523 5237745 10 12224 8356 2912 878 2667 10155 4573 18894 4214 4836 5708 241346 20 8 5 12 2 13 24 20 41 29 53 39 3947 30 1 1 0 0 10 3 6 19 15 31 30 3848 40 0 0 0 0 0 4 2 7 2 3 8 1149 50 0 0 0 0 0 0 0 0 0 1 1 250 over: 0 0 0 0 0 0 0 0 0 0 0 051 count: 55215 54649 54703 54620 54714 55003 54499 55461 54668 55052 55309 5488052 min: 0 0 0 0 0 0 0 0 0 0 0 053 avg: 0 0 0 0 0 0 0 0 0 0 0 054 max: 30 30 20 20 30 40 40 40 40 50 50 5055 56SEE ALSO57========58**rtla-osnoise**\(1), **rtla-osnoise-top**\(1)59 60*osnoise* tracer documentation: <https://www.kernel.org/doc/html/latest/trace/osnoise-tracer.html>61 62AUTHOR63======64Written by Daniel Bristot de Oliveira <bristot@kernel.org>65 66.. include:: common_appendix.rst67