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2026-06-01 - 22:15
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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 rackfslot7.osadl.org (updated Mon Jun 01, 2026 12:46:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1696901991041,102cyclictest0-21swapper/510:35:135
169689799980,96cyclictest0-21swapper/110:35:131
169690099824,39cyclictest1744331-21cat08:35:014
1696900997636,39cyclictest1830043-21true11:10:014
169689699750,75cyclictest0-21swapper/012:05:170
1696900997313,59cyclictest1734770-21ntpq08:15:214
1696900997131,19cyclictest0-21swapper/409:32:494
169690099657,39cyclictest1707843-21sed07:30:024
169690099656,19cyclictest0-21swapper/410:51:114
1696903996426,38cyclictest88-21ksoftirqd/711:20:177
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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