=================== rtla-osnoise-top =================== ----------------------------------------------- Display a summary of the operating system noise ----------------------------------------------- :Manual section: 1 SYNOPSIS ======== **rtla osnoise top** [*OPTIONS*] DESCRIPTION =========== .. include:: common_osnoise_description.rst **rtla osnoise top** collects the periodic summary from the *osnoise* tracer, including the counters of the occurrence of the interference source, displaying the results in a user-friendly format. 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_top_options.rst .. include:: common_options.rst EXAMPLE ======= In the example below, the **rtla osnoise top** tool is set to run with a real-time priority *FIFO:1*, on CPUs *0-3*, 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* and to display a summary of the report at the end of the session:: [root@f34 ~]# rtla osnoise top -P F:1 -c 0-3 -r 900000 -d 1M -q Operating System Noise duration: 0 00:01:00 | time is in us CPU Period Runtime Noise % CPU Aval Max Noise Max Single HW NMI IRQ Softirq Thread 0 #59 53100000 304896 99.42580 6978 56 549 0 53111 1590 13 1 #59 53100000 338339 99.36282 8092 24 399 0 53130 1448 31 2 #59 53100000 290842 99.45227 6582 39 855 0 53110 1406 12 3 #59 53100000 204935 99.61405 6251 33 290 0 53156 1460 12 SEE ALSO ======== **rtla-osnoise**\(1), **rtla-osnoise-hist**\(1) Osnoise tracer documentation: AUTHOR ====== Written by Daniel Bristot de Oliveira .. include:: common_appendix.rst