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2026-05-17 - 17:39
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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 Sun May 17, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1834997839,0cyclictest0-21swapper/612:04:106
66992770,1sleep76668-21sshd10:52:497
153182750,2sleep1178799cyclictest11:27:031
308382730,0sleep6631rcuc/610:37:186
264782730,0sleep50-21swapper/509:16:205
161712720,1sleep09-21ksoftirqd/012:12:430
235232700,0sleep00-21swapper/010:31:190
1779996121,39cyclictest32379-21systemd12:04:100
98782570,1sleep79873-21sshd10:56:417
1820995755,1cyclictest15-21kswork12:04:105
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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