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2026-04-14 - 21:57
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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 Tue Apr 14, 2026 12:44:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
457399780695,74cyclictest21228-21yum10:15:290
457399482402,54cyclictest0-21swapper/007:11:070
457499415334,48cyclictest0-21swapper/107:11:061
45102250227,16sleep10-21swapper/107:09:481
2286991230,4rtkit-daemon2285-21rtkit-daemon07:55:180
4491212097,16sleep00-21swapper/007:09:340
2286991090,14rtkit-daemon0-21swapper/009:20:541
4574991012,72cyclictest11265-21sh10:55:581
457499945,54cyclictest0-21swapper/110:15:281
4573999211,75cyclictest0-21swapper/009:59:590
228699920,12rtkit-daemon0-21swapper/009:19:451
4574999113,60cyclictest0-21swapper/108:16:591
228699910,13rtkit-daemon0-21swapper/010:07:151
228699900,12rtkit-daemon0-21swapper/011:16:171
228699890,4rtkit-daemon2285-21rtkit-daemon11:11:220
228699890,12rtkit-daemon0-21swapper/008:47:351
228699890,12rtkit-daemon0-21swapper/008:47:341
228699880,4rtkit-daemon2285-21rtkit-daemon10:12:361
228699880,12rtkit-daemon0-21swapper/011:47:071
4574998713,52cyclictest0-21swapper/109:59:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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