Based on kernel version 6.8. Page generated on 2024-03-11 21:26 EST.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 | =================== 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 <bristot@kernel.org> .. include:: common_appendix.rst |