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2026-03-09 - 18:41
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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 Mar 09, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1015421630,6sleep10-21swapper/107:53:411
1068911040,4ptp4l401ktimersoftd/307:57:033
106891720,1ptp4l401ktimersoftd/311:11:163
105452665,10sleep00-21swapper/007:57:240
10741996557,5cyclictest41-21ksoftirqd/311:53:273
106891590,1ptp4l401ktimersoftd/313:23:473
106891570,1ptp4l401ktimersoftd/313:11:083
106891570,1ptp4l401ktimersoftd/313:11:083
106891570,1ptp4l401ktimersoftd/312:57:413
110802560,1sleep00-21swapper/011:08:540
203482550,2sleep20-21swapper/210:46:272
10741995548,4cyclictest41-21ksoftirqd/313:03:293
10741995548,4cyclictest41-21ksoftirqd/313:03:293
106891550,1ptp4l401ktimersoftd/309:58:543
77952540,2sleep20-21swapper/211:06:432
10741995345,4cyclictest41-21ksoftirqd/312:18:293
10741995343,4cyclictest41-21ksoftirqd/308:18:223
10731995144,4cyclictest10738-21latency_hist07:58:102
143291480,2getstats0-21swapper/312:15:133
106891480,1ptp4l401ktimersoftd/310:48:213
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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