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2025-12-24 - 20:40
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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 Wed Dec 24, 2025 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911220,8ptp4l25488-21kworker/3:207:16:163
1068911220,8ptp4l25488-21kworker/3:207:16:163
11823996654,6cyclictest9-21ksoftirqd/011:36:570
11823996452,6cyclictest9-21ksoftirqd/008:16:500
103262610,4sleep00-21swapper/007:11:560
103262610,4sleep00-21swapper/007:11:560
117052604,10sleep20-21swapper/207:16:192
117052604,10sleep20-21swapper/207:16:192
148382580,5sleep114836-21grep10:42:111
106891570,1ptp4l401ktimersoftd/310:10:023
114172544,37sleep10-21swapper/107:12:341
114172544,37sleep10-21swapper/107:12:341
11823995042,4cyclictest9-21ksoftirqd/008:06:490
11823995041,5cyclictest9-21ksoftirqd/010:56:540
11823995040,6cyclictest9-21ksoftirqd/008:21:500
11823995040,5cyclictest9-21ksoftirqd/011:21:530
106891500,1ptp4l401ktimersoftd/309:11:233
11823994940,6cyclictest9-21ksoftirqd/012:41:560
11823994940,5cyclictest9-21ksoftirqd/009:51:500
11823994737,5cyclictest9-21ksoftirqd/007:51:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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