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2025-12-06 - 07:18
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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 Sat Dec 06, 2025 00:50:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3234428542,38sleep40-21swapper/419:07:384
3220627944,30sleep60-21swapper/619:05:386
2991427862,11sleep70-21swapper/719:05:087
3228627762,10sleep00-21swapper/019:06:460
3222127744,29sleep10-21swapper/119:05:501
3238927541,30sleep20-21swapper/219:08:162
3231827542,29sleep50-21swapper/519:07:145
3239927438,31sleep30-21swapper/319:08:253
112502610,0sleep20-21swapper/200:03:352
482995910,0cyclictest0-21swapper/323:58:353
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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