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2026-06-06 - 06:42
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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 rack1slot2.osadl.org (updated Sat Jun 06, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2922624938,0sleep10-21swapper/119:20:401
2939023627,0sleep30-21swapper/319:22:343
2948723425,0sleep20-21swapper/219:23:412
2938223329,0sleep00-21swapper/019:22:270
296339976,0cyclictest0-21swapper/219:44:562
35160,0ktimersoftd/30-21swapper/322:49:563
339960,0migration/3994-21sh22:33:033
339960,0migration/35137-21sh21:58:203
339960,0migration/331062-21sh22:13:013
339960,0migration/328892-21sh21:53:333
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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