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2026-03-20 - 22:19
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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 Mar 20, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
364021520,4sleep3773099cyclictest08:59:383
1068911010,3ptp4l401ktimersoftd/308:03:053
233782780,2sleep30-21swapper/311:30:453
5032770,2sleep10-21swapper/112:14:231
106891710,1ptp4l401ktimersoftd/310:20:033
106891610,1ptp4l401ktimersoftd/310:18:073
106891570,1ptp4l401ktimersoftd/313:14:213
106891570,1ptp4l401ktimersoftd/311:36:563
7721995634,4cyclictest25-21ksoftirqd/111:44:211
106891560,9ptp4l401ktimersoftd/313:16:273
264192550,2sleep10-21swapper/112:07:251
94982540,3sleep2772699cyclictest12:23:122
106891540,1ptp4l401ktimersoftd/309:45:043
7721995331,3cyclictest25-21ksoftirqd/112:24:401
772199515,7cyclictest25-21ksoftirqd/111:24:251
7721995120,9cyclictest25-21ksoftirqd/112:14:221
7721995118,8cyclictest25-21ksoftirqd/110:24:201
106891500,1ptp4l401ktimersoftd/310:06:393
7721994923,8cyclictest25-21ksoftirqd/110:44:201
772199491,6cyclictest25-21ksoftirqd/112:29:421
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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