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2026-07-13 - 01:47
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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 10 highest latencies:
System rack3slot6.osadl.org (updated Mon Jul 13, 2026 00:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15449998249,15cyclictest26-21ksoftirqd/121:01:431
15441998216,13cyclictest0-21swapper/023:20:140
15449998057,10cyclictest18785-21ntpq19:15:291
15449997947,15cyclictest26-21ksoftirqd/122:17:211
1524727818,51sleep00-21swapper/019:09:290
15449997739,18cyclictest26-21ksoftirqd/120:35:211
15449997649,9cyclictest11257-21ntpq21:55:331
15441997618,16cyclictest0-21swapper/020:20:120
15441997516,17cyclictest0-21swapper/020:25:130
15441997455,10cyclictest14-21ksoftirqd/023:45:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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