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2026-04-07 - 08:07
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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 Tue Apr 07, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
106891950,4ptp4l401ktimersoftd/320:13:503
250722690,2sleep00-21swapper/000:43:580
156362690,2sleep00-21swapper/001:06:260
15162670,2sleep10-21swapper/122:39:281
302972640,2sleep10-21swapper/122:36:391
132372634,9sleep00-21swapper/020:12:380
152462590,2sleep21345099cyclictest23:27:232
106891590,1ptp4l401ktimersoftd/321:04:213
90642580,1sleep10-21swapper/122:14:271
193302570,2sleep10-21swapper/121:29:191
106891570,1ptp4l401ktimersoftd/301:39:113
106891550,1ptp4l401ktimersoftd/300:57:553
14942530,1sleep30-21swapper/322:39:263
106891530,13ptp4l4005-21kworker/3:201:06:043
263182520,2sleep30-21swapper/323:04:363
130572524,37sleep10-21swapper/120:10:171
106891500,0ptp4l401ktimersoftd/323:47:353
106891450,1ptp4l401ktimersoftd/322:00:483
106891450,1ptp4l401ktimersoftd/322:00:483
106891400,1ptp4l401ktimersoftd/320:59:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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