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2026-06-11 - 11:02
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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
Characteristics of the 20 highest latencies:
System rack1slot1.osadl.org (updated Thu Jun 11, 2026 00:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
103942213174,26sleep10-21swapper/119:08:541
83592210160,24sleep30-21swapper/319:05:013
101842204160,31sleep20-21swapper/219:06:102
102792196158,24sleep00-21swapper/019:07:240
266362810,0sleep00-21swapper/019:40:160
206472650,0sleep10-21swapper/122:59:501
185622570,0sleep30-21swapper/320:30:173
10577991515,0cyclictest28-21ksoftirqd/223:05:122
1056499150,12cyclictest0-21swapper/123:10:131
250032130,0sleep10-21swapper/121:35:191
10577991312,1cyclictest28-21ksoftirqd/222:47:452
10577991312,1cyclictest28-21ksoftirqd/222:10:112
10557991311,1cyclictest9-21ksoftirqd/019:15:000
10557991311,1cyclictest9-21ksoftirqd/000:20:000
1057799120,9cyclictest7980-21apt-get00:10:102
143562110,0sleep10-21swapper/119:15:141
1057799119,1cyclictest28-21ksoftirqd/222:55:212
1057799119,1cyclictest28-21ksoftirqd/222:40:172
1057799119,1cyclictest28-21ksoftirqd/221:35:142
1057799118,1cyclictest28-21ksoftirqd/219:45:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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