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2026-07-19 - 13:36
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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 rackfslot7.osadl.org (updated Sun Jul 19, 2026 00:46:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1367628997673,2cyclictest0-21swapper/420:45:154
1367628997133,19cyclictest601ktimers/421:38:234
1367628997132,39cyclictest0-21swapper/419:16:234
1367628996930,39cyclictest0-21swapper/422:53:064
1367628996930,39cyclictest0-21swapper/421:27:164
1367628996828,39cyclictest0-21swapper/423:33:194
1367628996728,39cyclictest0-21swapper/422:49:154
1367628996526,39cyclictest0-21swapper/423:38:304
1367628996526,39cyclictest0-21swapper/423:23:064
1367628996425,39cyclictest0-21swapper/423:19:424
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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