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2026-08-03 - 21:12
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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 Mon Aug 03, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
279252800,0sleep40-21swapper/409:23:394
267242740,0sleep60-21swapper/610:50:226
32662700,2sleep61097999cyclictest09:51:126
117122680,0sleep70-21swapper/710:56:407
183122640,1sleep341-21ksoftirqd/311:47:463
183122640,1sleep341-21ksoftirqd/311:47:463
146482540,0sleep70-21swapper/710:27:577
263152530,0sleep50-21swapper/511:30:105
1062825228,8sleep60-21swapper/607:03:366
96832510,0sleep00-21swapper/012:05:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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