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2025-12-13 - 12:52
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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 Sat Dec 13, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911550,4ptp4l401ktimersoftd/319:10:023
263592790,5sleep1414699cyclictest21:00:441
33262734,10sleep00-21swapper/019:05:360
55622640,2sleep30-21swapper/322:35:323
39362594,10sleep20-21swapper/219:08:572
252002590,5sleep125205-21irqrtprio23:15:331
4161995341,5cyclictest41-21ksoftirqd/321:15:283
3822530,2sleep1241ktimersoftd/121:15:341
4161995037,6cyclictest41-21ksoftirqd/323:20:343
4161994937,7cyclictest41-21ksoftirqd/319:20:263
4161994937,6cyclictest41-21ksoftirqd/322:40:253
106891460,1ptp4l401ktimersoftd/319:53:093
4161994431,6cyclictest41-21ksoftirqd/323:55:283
4161994230,6cyclictest41-21ksoftirqd/321:50:293
106891410,0ptp4l401ktimersoftd/323:15:463
416199392,34cyclictest30755-21cat00:40:203
4152993822,13cyclictest33-21ksoftirqd/200:24:392
4152993813,22cyclictest16438-21sed22:56:122
106891380,2ptp4l9964-21kworker/3:120:30:153
106891380,1ptp4l401ktimersoftd/322:45:393
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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