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2025-08-29 - 14:47
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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 Fri Aug 29, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
177391940,3ptp4l401ktimersoftd/319:25:453
177391660,6ptp4l401ktimersoftd/323:20:133
177391660,6ptp4l401ktimersoftd/323:20:133
212812580,2sleep00-21swapper/023:54:090
177391580,1ptp4l401ktimersoftd/300:40:543
177391570,1ptp4l401ktimersoftd/323:05:453
177391570,1ptp4l401ktimersoftd/300:23:583
113862570,2sleep20-21swapper/221:54:392
275382560,2sleep20-21swapper/200:37:232
242432560,2sleep20-21swapper/220:25:302
177391560,1ptp4l401ktimersoftd/320:55:013
177391540,1ptp4l401ktimersoftd/322:22:253
177391510,2ptp4l20188-21kworker/3:223:57:413
177391500,1ptp4l401ktimersoftd/323:54:163
177391440,2ptp4l12497-21kworker/3:221:00:213
177391420,1ptp4l401ktimersoftd/319:37:263
28411994135,4cyclictest28421-21cat19:30:080
2809024020,9sleep10-21swapper/119:27:241
177391390,1ptp4l401ktimersoftd/323:38:253
177391390,1ptp4l401ktimersoftd/323:20:423
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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