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2026-05-03 - 02:57
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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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack8slot4.osadl.org (updated Sun May 03, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32175702225166,19sleep10-21swapper/119:08:401
32175702225166,19sleep10-21swapper/119:08:391
32176612218190,18sleep70-21swapper/719:09:587
32176612218190,18sleep70-21swapper/719:09:587
32173532213184,19sleep30-21swapper/319:05:443
32173532213184,19sleep30-21swapper/319:05:443
32176392205175,20sleep50-21swapper/519:09:415
32176392205175,20sleep50-21swapper/519:09:415
32173792205175,20sleep20-21swapper/219:06:072
32173792205175,20sleep20-21swapper/219:06:072
32173742205176,19sleep60-21swapper/619:06:036
32173742205176,19sleep60-21swapper/619:06:026
32175912202174,19sleep40-21swapper/419:08:594
32175912202174,19sleep40-21swapper/419:08:594
32175872202173,19sleep00-21swapper/019:08:540
32175872202173,19sleep00-21swapper/019:08:540
32575482570,0sleep20-21swapper/220:20:022
3217870995451,2cyclictest290-21plymouthd21:05:020
321787099340,2cyclictest3285313-21cron21:10:010
321787099330,32cyclictest0-21swapper/022:05:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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