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2026-08-29 - 22:45
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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 10 highest latencies:
System rack3slot6.osadl.org (updated Sat Aug 29, 2026 12:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
143769910980,16cyclictest14-21ksoftirqd/010:05:160
143769910889,10cyclictest14-21ksoftirqd/009:40:130
143769910788,10cyclictest14-21ksoftirqd/009:10:130
143769910270,19cyclictest14-21ksoftirqd/009:25:120
143769910171,19cyclictest14-21ksoftirqd/011:50:130
143789910051,31cyclictest26-21ksoftirqd/107:35:121
14376999977,11cyclictest14-21ksoftirqd/008:30:120
14376999774,12cyclictest14-21ksoftirqd/012:20:120
14376999766,17cyclictest14-21ksoftirqd/008:25:140
14376999666,18cyclictest14-21ksoftirqd/011:20:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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