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2025-07-10 - 09:08
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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 10 highest latencies:
System rack3slot0.osadl.org (updated Thu Jul 10, 2025 00:43:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
285572880,1sleep728545-21sshd22:13:217
145632830,2sleep02184599cyclictest00:12:560
320682770,0sleep20-21swapper/223:49:192
209082580,2sleep449-21ksoftirqd/418:54:354
44422530,0sleep10-21swapper/121:26:301
50642510,11sleep685350irq/25-em1-rx-000:20:316
2172225026,8sleep10-21swapper/118:59:131
177852480,1sleep557-21ksoftirqd/521:36:035
36182470,0sleep00-21swapper/023:22:260
232542470,0sleep70-21swapper/700:10:477
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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