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1===================2rtla-osnoise-top3===================4-----------------------------------------------5Display a summary of the operating system noise6-----------------------------------------------7 8:Manual section: 19 10SYNOPSIS11========12**rtla osnoise top** [*OPTIONS*]13 14DESCRIPTION15===========16.. include:: common_osnoise_description.rst17 18**rtla osnoise top** collects the periodic summary from the *osnoise* tracer,19including the counters of the occurrence of the interference source,20displaying the results in a user-friendly format.21 22The tool also allows many configurations of the *osnoise* tracer and the23collection of the tracer output.24 25OPTIONS26=======27.. include:: common_osnoise_options.rst28 29.. include:: common_top_options.rst30 31.. include:: common_options.rst32 33EXAMPLE34=======35In the example below, the **rtla osnoise top** tool is set to run with a36real-time priority *FIFO:1*, on CPUs *0-3*, for *900ms* at each period37(*1s* by default). The reason for reducing the runtime is to avoid starving38the rtla tool. The tool is also set to run for *one minute* and to display39a summary of the report at the end of the session::40 41 [root@f34 ~]# rtla osnoise top -P F:1 -c 0-3 -r 900000 -d 1M -q42 Operating System Noise43 duration: 0 00:01:00 | time is in us44 CPU Period Runtime Noise % CPU Aval Max Noise Max Single HW NMI IRQ Softirq Thread45 0 #59 53100000 304896 99.42580 6978 56 549 0 53111 1590 1346 1 #59 53100000 338339 99.36282 8092 24 399 0 53130 1448 3147 2 #59 53100000 290842 99.45227 6582 39 855 0 53110 1406 1248 3 #59 53100000 204935 99.61405 6251 33 290 0 53156 1460 1249 50SEE ALSO51========52 53**rtla-osnoise**\(1), **rtla-osnoise-hist**\(1)54 55Osnoise tracer documentation: <https://www.kernel.org/doc/html/latest/trace/osnoise-tracer.html>56 57AUTHOR58======59Written by Daniel Bristot de Oliveira <bristot@kernel.org>60 61.. include:: common_appendix.rst62