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2026-06-16 - 21:10
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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 20 highest latencies:
System rackfslot7.osadl.org (updated Tue Jun 16, 2026 12:46:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
172601399623,19cyclictest0-21swapper/610:05:186
1726010996041,19cyclictest1832585-21ntpq10:20:203
1726013995233,19cyclictest0-21swapper/607:40:166
1726013995214,19cyclictest0-21swapper/608:55:166
1726013995031,19cyclictest0-21swapper/608:20:156
1726013995012,19cyclictest0-21swapper/611:50:166
1726012995012,19cyclictest0-21swapper/510:45:165
1726012994929,19cyclictest870-21mta-sts-daemon11:25:155
1726012994810,19cyclictest0-21swapper/510:10:175
172601299478,19cyclictest0-21swapper/508:25:165
172601399446,19cyclictest0-21swapper/611:40:176
172601399445,39cyclictest0-21swapper/610:15:156
172600999441,19cyclictest0-21swapper/211:50:162
172601299422,39cyclictest0-21swapper/512:10:165
172601299413,19cyclictest0-21swapper/508:15:155
1726010994122,19cyclictest0-21swapper/309:07:363
172601399400,39cyclictest0-21swapper/610:55:166
172601299400,39cyclictest0-21swapper/509:05:175
1726010994021,19cyclictest1886234-21acpi12:00:103
1726010994020,20cyclictest511ktimers/311:30:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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