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2025-12-30 - 02:37
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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 Mon Dec 29, 2025 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068912150,5ptp4l401ktimersoftd/307:14:453
1910621400,4sleep01889199cyclictest11:54:410
2563421360,5sleep11889899cyclictest11:24:431
2563421360,5sleep11889899cyclictest11:24:431
106891720,1ptp4l401ktimersoftd/311:53:563
44712690,2sleep30-21swapper/311:37:303
106891680,9ptp4l401ktimersoftd/310:57:303
218612670,2sleep10-21swapper/110:05:501
106891670,1ptp4l401ktimersoftd/311:33:313
106891670,1ptp4l401ktimersoftd/311:33:313
106891670,1ptp4l401ktimersoftd/311:11:233
188632650,2sleep10-21swapper/109:25:271
164792654,10sleep20-21swapper/207:14:232
106891620,2ptp4l401ktimersoftd/311:44:213
106891590,1ptp4l401ktimersoftd/307:59:463
106891570,1ptp4l401ktimersoftd/309:44:453
65212560,4sleep0101ktimersoftd/012:16:290
106891560,1ptp4l401ktimersoftd/310:35:053
1889199543,7cyclictest9-21ksoftirqd/012:29:590
106891540,1ptp4l401ktimersoftd/310:05:273
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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