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2025-12-28 - 01:48
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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 Sun Dec 28, 2025 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
937399909831,39cyclictest27855-21ssh21:21:070
937499781739,27cyclictest0-21swapper/121:21:071
9373995434,502cyclictest0-21swapper/019:12:120
937499424357,40cyclictest0-21swapper/119:12:131
937399125100,20cyclictest0-21swapper/022:03:000
91982122105,11sleep10-21swapper/119:08:391
93739911112,94cyclictest0-21swapper/000:35:590
93739910110,84cyclictest0-21swapper/020:37:590
228699980,4rtkit-daemon20375-21diskmemload23:04:221
288472880,4sleep028848-21sshd20:01:300
9373998729,34cyclictest0-21swapper/020:44:000
9373998263,14cyclictest0-21swapper/000:29:590
228699820,4rtkit-daemon2285-21rtkit-daemon23:37:581
9373998112,53cyclictest0-21swapper/020:52:590
228699810,4rtkit-daemon2285-21rtkit-daemon20:15:441
9374998036,30cyclictest0-21swapper/120:34:591
9374998013,50cyclictest0-21swapper/122:47:591
228699800,5rtkit-daemon2285-21rtkit-daemon23:26:231
228699790,5rtkit-daemon2285-21rtkit-daemon00:38:051
228699790,5rtkit-daemon2285-21rtkit-daemon00:05:541
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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