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2025-08-29 - 14:52
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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 rack6slot5.osadl.org (updated Fri Aug 29, 2025 12:44:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
50799998875259,4617cyclictest20242-21kworker/0:008:08:290
50799997895211,4567cyclictest31045-21kworker/0:010:32:340
50799997265184,4531cyclictest25471-21kworker/0:211:22:060
50799997065065,4636cyclictest6027-21kworker/0:110:02:590
50799997065055,4640cyclictest4147-21kworker/0:207:40:220
50799996965066,4619cyclictest14130-21kworker/0:109:01:590
50799996585038,4609cyclictest19020-21kworker/0:212:10:170
50799993874823,4560cyclictest3681-21kworker/0:011:41:520
50799993734815,4547cyclictest20242-21kworker/0:008:45:240
50799993194794,4514cyclictest14130-21kworker/0:109:13:540
50799991054587,4507cyclictest19020-21kworker/0:212:22:230
50799990744652,4418cyclictest6027-21kworker/0:110:23:330
50799990734672,4389cyclictest19020-21kworker/0:212:16:030
50799990684660,4397cyclictest19020-21kworker/0:212:34:310
50799990634670,4388cyclictest15332-21kworker/0:211:07:250
50799989884781,4156cyclictest1402-21kworker/0:110:39:530
50799989654598,4356cyclictest22736-21kworker/0:011:17:170
50799989644664,4242cyclictest6027-21kworker/0:110:09:380
50799989534609,4333cyclictest20242-21kworker/0:008:29:020
50799989134592,4317cyclictest25471-21kworker/0:211:26:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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