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2026-03-29 - 01:43
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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 rack5slot0.osadl.org (updated Sat Mar 28, 2026 12:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1740021280,4sleep1253699cyclictest11:02:191
123152950,1sleep02512-21runrttasks10:36:560
238982910,1sleep023890-21sshd11:42:050
219729133,54sleep10-21swapper/107:09:081
163912910,3sleep30-21swapper/312:30:443
110312900,1sleep011032-21unixbench_singl10:40:250
109502880,1sleep010946-21bash12:18:430
275652870,2sleep20-21swapper/212:35:562
215928732,51sleep30-21swapper/307:08:413
204272870,2sleep220422-21sshd09:23:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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