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2026-08-08 - 13:21
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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 rackeslot3.osadl.org (updated Sat Aug 08, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
859020997341,31cyclictest903367-21kworker/1:121:35:161
859020997243,28cyclictest865559-21kworker/1:219:30:161
859020997143,27cyclictest858843-21kworker/1:119:15:021
859020997050,18cyclictest2966316-1kworker/1:1H21:50:001
859020997044,25cyclictest2966316-1kworker/1:1H19:26:311
859020996841,26cyclictest858843-21kworker/1:119:25:001
859020996839,28cyclictest2966316-1kworker/1:1H20:15:051
859020996839,28cyclictest2966316-1kworker/1:1H20:15:051
859020996838,29cyclictest896682-21kworker/1:221:10:021
859020996838,28cyclictest901824-21kworker/1:021:25:141
859020996838,28cyclictest901824-21kworker/1:021:25:131
859020996741,25cyclictest895141-21kworker/1:121:05:131
85902099652,1cyclictest0-21swapper/120:01:081
85902099640,63cyclictest0-21swapper/119:57:481
85902099640,2cyclictest0-21swapper/120:31:431
85902099640,1cyclictest0-21swapper/122:10:131
859020996335,27cyclictest2966316-1kworker/1:1H21:55:141
85902099630,1cyclictest0-21swapper/119:40:421
859020996242,19cyclictest2966316-1kworker/1:1H20:50:011
859020996241,20cyclictest937854-21kworker/1:023:50:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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