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2026-06-23 - 20:18
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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 Tue Jun 23, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
171649910265,29cyclictest18573-21seq08:40:220
16783210217,39sleep00-21swapper/007:07:540
171649910071,17cyclictest14-21ksoftirqd/012:10:120
17164999966,19cyclictest0-21swapper/009:55:130
17164999966,19cyclictest0-21swapper/009:55:130
17164999668,14cyclictest14-21ksoftirqd/008:15:120
17164999568,13cyclictest14-21ksoftirqd/008:30:230
17164999463,21cyclictest14-21ksoftirqd/008:45:130
57332930,6sleep15731-21head08:05:271
17164999365,14cyclictest14-21ksoftirqd/009:30:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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