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2026-05-17 - 11:53
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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 Sun May 17, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35279092239177,49sleep30-21swapper/319:09:413
35276202229171,19sleep40-21swapper/419:05:414
35278302227168,18sleep70-21swapper/719:08:337
35278342226167,19sleep20-21swapper/219:08:352
35278982222165,46sleep10-21swapper/119:09:321
35277312216187,19sleep00-21swapper/019:07:050
35277042207177,20sleep50-21swapper/519:06:465
35276692205175,20sleep60-21swapper/619:06:156
36584152510,0sleep10-21swapper/123:00:171
3528149993434,0cyclictest0-21swapper/319:30:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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