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2024-07-27 - 07:20
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack1slot8.osadl.org (updated Sat Jul 27, 2024 00:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1852999933866,36cyclictest18804-21aten_r1power_vo19:10:131
18528999192,7cyclictest18805-21aten_r1power_vo19:10:130
182032847825,15sleep00-21swapper/019:07:070
180432576553,17sleep10-21swapper/119:05:331
1852999463407,31cyclictest0-21swapper/119:35:311
1852899331284,31cyclictest0-21swapper/019:35:310
2277991140,13rtkit-daemon0-21swapper/023:12:390
2277991100,4rtkit-daemon2276-21rtkit-daemon00:02:201
2277991070,4rtkit-daemon2276-21rtkit-daemon21:45:571
24822960,4sleep02483-21grep00:10:170
18529999115,59cyclictest0-21swapper/119:49:591
18528999072,14cyclictest0-21swapper/021:43:590
18529998814,58cyclictest0-21swapper/123:59:591
227799840,12rtkit-daemon0-21swapper/020:04:110
227799840,12rtkit-daemon0-21swapper/020:04:110
227799830,5rtkit-daemon2276-21rtkit-daemon20:19:310
227799820,4rtkit-daemon2276-21rtkit-daemon19:54:410
227799800,4rtkit-daemon2276-21rtkit-daemon19:15:251
227799790,4rtkit-daemon2276-21rtkit-daemon20:34:410
227799770,4rtkit-daemon2276-21rtkit-daemon21:31:471
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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