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2026-05-25 - 20:48
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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 Mon May 25, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3032321540,5sleep1251rcuc/109:00:111
3000621200,6chrt30008-21ntpq07:25:291
2064021110,4sleep10-21swapper/111:35:011
228729910174,13cyclictest14-21ksoftirqd/009:25:250
22872999873,12cyclictest14-21ksoftirqd/010:15:120
22872999860,28cyclictest0-21swapper/010:45:110
22872999779,9cyclictest14-21ksoftirqd/009:55:130
22872999563,18cyclictest0-21swapper/008:15:140
22872999463,19cyclictest0-21swapper/008:50:130
22872999365,15cyclictest14-21ksoftirqd/007:40:130
22872999365,15cyclictest14-21ksoftirqd/007:40:130
22872999278,9cyclictest14-21ksoftirqd/011:10:310
22872999262,18cyclictest14-21ksoftirqd/008:30:140
2272129132,48sleep10-21swapper/107:09:521
22872998963,18cyclictest14-21ksoftirqd/012:20:120
22872998962,16cyclictest14-21ksoftirqd/009:10:120
22872998859,19cyclictest14-21ksoftirqd/007:45:110
22872998859,18cyclictest14-21ksoftirqd/008:40:110
22872998656,19cyclictest14-21ksoftirqd/007:25:130
22872998555,19cyclictest14-21ksoftirqd/012:25:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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