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2026-06-06 - 23:41
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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 Sat Jun 06, 2026 00:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11472998366,10cyclictest26-21ksoftirqd/123:40:221
1070228338,28sleep00-21swapper/019:05:300
58362820,6sleep05838-21ls23:25:220
277562780,5sleep1251rcuc/119:55:021
217972730,5sleep10-21swapper/122:40:021
11472997336,32cyclictest0-21swapper/123:55:151
11472997244,15cyclictest26-21ksoftirqd/122:25:111
1046027131,27sleep10-21swapper/119:05:271
11468997023,14cyclictest14-21ksoftirqd/023:30:050
1147299678,53cyclictest22158-21cron21:10:001
1147299678,53cyclictest22158-21cron21:10:001
11468996716,17cyclictest14-21ksoftirqd/000:00:300
1147299662,20cyclictest0-21swapper/123:15:161
11472996610,26cyclictest11096-21awk22:10:001
11468996636,12cyclictest14-21ksoftirqd/020:40:160
1146899659,27cyclictest0-21swapper/023:04:100
1147299649,21cyclictest25654-21ls21:20:001
11472996439,12cyclictest0-21swapper/100:10:111
1147299639,28cyclictest30033-21awk23:00:331
1147299639,24cyclictest23564-21latency_hist22:45:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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