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2026-04-27 - 16:59
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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 10 highest latencies:
System rack1slot8.osadl.org (updated Mon Apr 27, 2026 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2415199832767,51cyclictest0-21swapper/007:10:480
2415299776710,53cyclictest0-21swapper/107:10:481
236622669647,15sleep10-21swapper/107:05:311
2415299939,66cyclictest0-21swapper/112:33:591
24152999212,60cyclictest0-21swapper/107:29:591
2415299896,69cyclictest0-21swapper/111:13:591
24152998919,56cyclictest0-21swapper/111:04:001
24152998812,63cyclictest0-21swapper/107:50:001
228699860,4rtkit-daemon2285-21rtkit-daemon11:18:061
24151998365,14cyclictest0-21swapper/012:27:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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