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2025-11-27 - 00:25
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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 rack0slot7.osadl.org (updated Wed Nov 26, 2025 00:45:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2405102994860,83cyclictest3209869-21StreamT~11
24051009947847,425cyclictest324834-21IPC9
24051009944513,28cyclictest324832-21glean.dispatche21:15:519
24050999944510,27cyclictest0-21swapper/222:13:348
2405100994408,28cyclictest0-21swapper/321:53:229
2405104994388,27cyclictest1983828-21DOM09:53:5813
24051009943838,399cyclictest0-21swapper/319:13:339
2405099994329,28cyclictest390759-21thunderbird21:00:218
24050999943123,407cyclictest0-21swapper/222:03:228
24050999942719,407cyclictest0-21swapper/221:46:238
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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