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2026-08-08 - 08:39
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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 Sat Aug 08, 2026 00:46:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
234548299770,76cyclictest0-21swapper/520:25:175
234548299612,19cyclictest0-21swapper/519:45:175
2345484995318,15cyclictest0-21swapper/720:05:167
2345484995315,19cyclictest0-21swapper/723:15:157
2345482995214,19cyclictest0-21swapper/520:30:165
2345482995212,39cyclictest0-21swapper/523:30:145
2345484995133,0cyclictest0-21swapper/720:00:147
2345480995113,19cyclictest0-21swapper/319:55:153
2345482995012,38cyclictest0-21swapper/519:15:175
2345484994911,19cyclictest0-21swapper/719:35:167
2345484994911,19cyclictest0-21swapper/700:25:147
2345477994930,19cyclictest0-21swapper/120:30:161
2345481994810,19cyclictest2445841-21ld22:10:194
234547799489,39cyclictest0-21swapper/120:45:161
234548099479,38cyclictest0-21swapper/300:00:173
2345479994628,18cyclictest2345475-21cyclictest00:20:152
2345484994526,19cyclictest0-21swapper/722:35:167
234548099456,39cyclictest0-21swapper/323:40:163
234548299446,38cyclictest0-21swapper/500:10:155
234547999445,19cyclictest0-21swapper/220:10:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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