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2026-08-01 - 06:33
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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 01, 2026 00:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
117729910978,18cyclictest26-21ksoftirqd/120:45:131
117729910977,21cyclictest26-21ksoftirqd/121:05:131
11770991097,24cyclictest0-21swapper/019:10:120
117729910775,19cyclictest26-21ksoftirqd/122:35:111
117729910475,18cyclictest26-21ksoftirqd/120:00:121
117729910374,21cyclictest26-21ksoftirqd/122:15:241
117729910372,19cyclictest26-21ksoftirqd/121:15:131
117729910270,20cyclictest26-21ksoftirqd/123:45:231
117729910175,16cyclictest26-21ksoftirqd/121:20:131
11772999868,20cyclictest26-21ksoftirqd/100:30:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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