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2025-12-25 - 22:30
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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 Thu Dec 25, 2025 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911080,3ptp4l401ktimersoftd/307:14:233
48042680,5sleep24808-21latency11:22:352
300962660,2sleep30-21swapper/307:42:363
155892654,10sleep00-21swapper/007:13:340
279832600,5sleep127986-21unixbench_multi07:37:401
15982995946,5cyclictest41-21ksoftirqd/311:37:273
106891590,1ptp4l401ktimersoftd/308:07:283
106891540,1ptp4l401ktimersoftd/312:11:053
15982995342,5cyclictest41-21ksoftirqd/307:27:223
15982995340,7cyclictest41-21ksoftirqd/311:57:273
15982995339,7cyclictest41-21ksoftirqd/310:37:283
106891530,1ptp4l401ktimersoftd/308:15:073
157212504,34sleep20-21swapper/207:15:172
15982994939,5cyclictest41-21ksoftirqd/308:27:243
15982994936,7cyclictest41-21ksoftirqd/310:22:243
158452494,34sleep10-21swapper/107:16:541
15982994836,5cyclictest41-21ksoftirqd/311:02:263
106891470,1ptp4l401ktimersoftd/312:19:453
15982994636,5cyclictest41-21ksoftirqd/310:52:253
15982994534,5cyclictest41-21ksoftirqd/309:07:223
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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