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2026-05-23 - 04:35
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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
Characteristics of the 20 highest latencies:
System rackdslot0.osadl.org (updated Sat May 23, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22747992927,1cyclictest0-21swapper/022:20:140
2274799257,15cyclictest0-21swapper/022:46:420
2274799212,13cyclictest10414-21perf19:45:010
22747992121,0cyclictest0-21swapper/020:45:120
22749992014,5cyclictest843-21systemd-network00:10:362
2274899204,15cyclictest0-21swapper/123:40:151
2274899204,15cyclictest0-21swapper/119:18:491
2274899200,19cyclictest0-21swapper/122:35:031
22749991916,2cyclictest12516-21grep21:40:152
2274999190,18cyclictest0-21swapper/222:35:042
2274899192,2cyclictest388-21chrt23:07:431
2274899192,2cyclictest14900-21idleruntime-cro23:34:591
22748991914,4cyclictest399-20systemd-journal21:47:521
2274899191,16cyclictest0-21swapper/119:50:171
2274899190,18cyclictest843-21systemd-network22:30:391
2274799193,1cyclictest0-21swapper/019:25:300
2274999189,5cyclictest0-21swapper/219:40:212
22749991815,2cyclictest9130-21taskset23:21:292
2274999181,2cyclictest9418-21nfsd422:25:172
2274899183,1cyclictest0-21swapper/100:38:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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