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2026-06-17 - 20:52
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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 Wed Jun 17, 2026 12:46:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2902961999593,1cyclictest43-21ksoftirqd/210:15:112
290296699540,54cyclictest0-21swapper/708:00:167
290296599540,47cyclictest194598rtkit-daemon10:15:106
2902965995214,19cyclictest0-21swapper/609:05:166
2902965995214,19cyclictest0-21swapper/609:05:156
2902964995213,20cyclictest0-21swapper/508:25:175
2902961995232,19cyclictest0-21swapper/212:05:152
2902960995214,38cyclictest0-21swapper/112:20:151
2902961995132,19cyclictest0-21swapper/208:30:172
2902961995132,19cyclictest0-21swapper/208:30:162
2902961995114,18cyclictest0-21swapper/212:30:132
2902961995114,18cyclictest0-21swapper/209:40:122
2902960995031,19cyclictest0-21swapper/110:50:161
2902966994911,19cyclictest0-21swapper/711:25:137
2902961994930,19cyclictest0-21swapper/211:55:162
2902960994930,19cyclictest0-21swapper/112:35:161
290296299489,39cyclictest0-21swapper/310:05:153
2902961994810,19cyclictest0-21swapper/208:45:192
290296699479,19cyclictest0-21swapper/708:40:457
290296299479,19cyclictest0-21swapper/308:20:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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