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2025-11-06 - 05:26
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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 10 highest latencies:
System rack5slot3.osadl.org (updated Thu Nov 06, 2025 00:50:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
609121920,3sleep70-21swapper/719:05:247
643529378,10sleep40-21swapper/419:08:594
643429046,39sleep30-21swapper/319:08:583
649328652,30sleep50-21swapper/519:09:475
642828046,29sleep60-21swapper/619:08:536
634528047,29sleep00-21swapper/019:07:420
641227946,29sleep10-21swapper/119:08:391
638527743,30sleep20-21swapper/219:08:162
6941995610,45cyclictest0-21swapper/423:26:154
6938995410,0cyclictest0-21swapper/100:37:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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