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2026-05-06 - 03:47
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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 50 highest latencies:
System rack3slot6.osadl.org (updated Wed May 06, 2026 00:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
312519911783,22cyclictest26-21ksoftirqd/120:55:111
312439911314,32cyclictest0-21swapper/022:25:130
312439911212,30cyclictest0-21swapper/022:20:130
312439911113,34cyclictest0-21swapper/019:55:120
312519911066,32cyclictest26-21ksoftirqd/120:00:151
31243991107,52cyclictest24608-21taskset23:25:120
312439911012,28cyclictest0-21swapper/022:35:130
312519910934,29cyclictest0-21swapper/119:35:141
312439910913,35cyclictest0-21swapper/020:00:110
2878621090,7chrt28787-21latency_hist22:05:000
312439910524,25cyclictest0-21swapper/021:20:130
312439910512,30cyclictest0-21swapper/021:25:150
31251999950,34cyclictest26-21ksoftirqd/100:15:151
31251999948,33cyclictest26-21ksoftirqd/120:05:131
31251999811,26cyclictest0-21swapper/119:45:131
31251999714,60cyclictest0-21swapper/123:00:151
31251999635,47cyclictest26-21ksoftirqd/120:35:131
31251999511,62cyclictest0-21swapper/121:50:121
31251999413,64cyclictest0-21swapper/122:15:131
31251999413,63cyclictest0-21swapper/120:30:121
31251999412,58cyclictest0-21swapper/123:50:131
31251999313,57cyclictest0-21swapper/119:20:131
31251999312,58cyclictest0-21swapper/122:05:111
31251999311,61cyclictest0-21swapper/120:25:111
31251999213,58cyclictest0-21swapper/119:55:141
31251999212,60cyclictest0-21swapper/120:40:231
31251999210,57cyclictest0-21swapper/120:10:141
3125199916,59cyclictest9989-21runrttasks19:40:111
31251999112,56cyclictest0-21swapper/100:10:131
31251999111,22cyclictest0-21swapper/119:10:151
31251999011,56cyclictest0-21swapper/121:15:151
31251999011,54cyclictest0-21swapper/121:05:151
31251998837,33cyclictest26-21ksoftirqd/120:50:131
31251998836,33cyclictest0-21swapper/122:55:111
31251998811,53cyclictest0-21swapper/123:45:151
31251998712,54cyclictest0-21swapper/122:25:151
31251998712,54cyclictest0-21swapper/121:45:131
3125199866,60cyclictest801-21gpm23:30:131
3125199866,60cyclictest801-21gpm23:30:131
31251998622,42cyclictest26-21ksoftirqd/100:05:141
31251998613,51cyclictest0-21swapper/121:55:131
31251998521,48cyclictest0-21swapper/100:20:171
31251998521,48cyclictest0-21swapper/100:20:171
31251998516,47cyclictest0-21swapper/120:15:111
31251998513,52cyclictest0-21swapper/123:15:121
31251998511,56cyclictest0-21swapper/120:20:141
31251998511,51cyclictest0-21swapper/100:00:131
31251998412,51cyclictest0-21swapper/119:15:131
31251998334,29cyclictest0-21swapper/123:35:231
31251998333,31cyclictest0-21swapper/119:30:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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