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2026-04-22 - 17:09
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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 Apr 22, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1937221820,4sleep22574099cyclictest11:27:532
1068911160,8ptp4l31843-21kworker/3:108:20:563
149852830,5sleep12573199cyclictest12:28:071
192302740,5sleep119232-21irqrtprio09:12:511
25748997156,7cyclictest41-21ksoftirqd/313:02:493
25748996954,6cyclictest41-21ksoftirqd/310:37:463
25748996855,6cyclictest41-21ksoftirqd/309:52:453
25748996752,7cyclictest41-21ksoftirqd/313:17:493
25748996653,6cyclictest41-21ksoftirqd/310:32:453
25748996652,6cyclictest41-21ksoftirqd/309:57:453
292632640,2sleep10-21swapper/111:05:001
25748996449,6cyclictest41-21ksoftirqd/313:47:483
13472640,2sleep10-21swapper/113:19:581
25748996149,6cyclictest41-21ksoftirqd/310:02:453
312812570,1sleep30-21swapper/312:45:313
106891570,1ptp4l401ktimersoftd/311:55:553
106891570,1ptp4l401ktimersoftd/310:29:443
2573199568,7cyclictest7950-21sed12:22:371
2573199567,17cyclictest21759-21rm12:36:011
7112550,2sleep0708-21ssh12:47:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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