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2026-06-12 - 16:06
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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 rack3slot6.osadl.org (updated Fri Jun 12, 2026 12:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19825991449,47cyclictest30871-31find07:40:140
198339913214,102cyclictest0-21swapper/109:55:111
198259912611,29cyclictest0-21swapper/012:00:120
198259912312,62cyclictest0-21swapper/011:00:150
198259912091,19cyclictest14-21ksoftirqd/009:10:120
198339911775,29cyclictest26-21ksoftirqd/108:20:151
198259911484,18cyclictest14-21ksoftirqd/009:40:120
198339910932,66cyclictest0-21swapper/111:45:121
198339910849,44cyclictest26-21ksoftirqd/112:30:101
198339910554,36cyclictest26-21ksoftirqd/108:35:121
198339910512,76cyclictest0-21swapper/109:50:171
198339910511,80cyclictest0-21swapper/108:45:141
198339910457,32cyclictest26-21ksoftirqd/111:10:141
198339910447,45cyclictest22948-21seq10:20:131
19332210418,40sleep00-21swapper/007:06:370
198259910372,20cyclictest14-21ksoftirqd/008:50:120
198339910261,29cyclictest0-21swapper/112:00:151
19833991009,63cyclictest0-21swapper/110:35:121
198339910052,30cyclictest26-21ksoftirqd/107:45:131
19833999945,40cyclictest26-21ksoftirqd/109:30:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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