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2026-05-30 - 09:42
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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 rack8slot4.osadl.org (updated Sat May 30, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22082102242177,20sleep40-21swapper/419:07:094
22083102232172,19sleep10-21swapper/119:08:351
22083952227166,19sleep30-21swapper/319:09:503
22083232217189,18sleep50-21swapper/519:08:485
22081462213185,18sleep60-21swapper/619:06:156
22083922209180,19sleep00-21swapper/019:09:470
22081472209181,18sleep70-21swapper/719:06:167
22081992208180,19sleep20-21swapper/219:07:002
2208629993935,3cyclictest2368046-21true23:55:017
2208621993737,0cyclictest0-21swapper/420:53:494
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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