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2026-04-21 - 16:14
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackbslot6.osadl.org (updated Tue Apr 21, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911200,8ptp4l3341-21kworker/3:208:18:373
121832780,2sleep30-21swapper/313:48:153
121832780,2sleep30-21swapper/313:48:153
81572724,10sleep00-21swapper/008:20:590
106891700,1ptp4l401ktimersoftd/311:48:433
106891690,1ptp4l401ktimersoftd/312:25:123
106891690,1ptp4l401ktimersoftd/311:06:543
79952674,10sleep20-21swapper/208:18:512
87072640,2sleep38709-21rm12:39:173
91032630,1sleep20-21swapper/213:46:412
91032630,1sleep20-21swapper/213:46:412
70632630,3sleep20-21swapper/209:22:272
218682610,2sleep00-21swapper/008:47:170
69372600,2sleep30-21swapper/311:32:203
124782590,3sleep10-21swapper/112:42:321
106891590,1ptp4l401ktimersoftd/311:26:223
45112580,2sleep20-21swapper/209:17:222
303162580,4sleep1834399cyclictest11:56:031
197182580,3sleep219719-21irqrtprio11:12:202
106891570,1ptp4l401ktimersoftd/313:23:053
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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