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2026-05-19 - 11:51
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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 rackdslot3.osadl.org (updated Tue May 19, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
231532204171,22sleep00-21swapper/019:08:070
230672204171,22sleep20-21swapper/219:07:002
231542203170,22sleep10-21swapper/119:08:071
232742202169,22sleep30-21swapper/319:09:423
3213221640,4sleep02359199cyclictest19:25:220
1556921620,6sleep22359399cyclictest22:15:192
23592996923,10cyclictest25-21ksoftirqd/122:55:241
23592996923,10cyclictest25-21ksoftirqd/122:55:241
23591996620,6cyclictest9-21ksoftirqd/020:10:190
23592996435,4cyclictest25-21ksoftirqd/119:30:151
23591996433,3cyclictest9-21ksoftirqd/022:00:240
23592996328,7cyclictest25-21ksoftirqd/119:35:201
23591996330,9cyclictest9-21ksoftirqd/000:10:010
23591996330,6cyclictest9-21ksoftirqd/022:20:190
23592996235,3cyclictest25-21ksoftirqd/119:50:121
23592996229,3cyclictest25-21ksoftirqd/121:50:001
23592996227,10cyclictest25-21ksoftirqd/123:40:001
23592996223,7cyclictest25-21ksoftirqd/119:55:181
23591996233,7cyclictest9-21ksoftirqd/020:20:150
23591996231,7cyclictest9-21ksoftirqd/022:35:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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