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2025-11-22 - 14:12
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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 10 highest latencies:
System rackbslot2.osadl.org (updated Fri Nov 21, 2025 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33508742233203,20sleep30-21swapper/307:08:213
33507362233181,40sleep20-21swapper/207:06:322
33508412226197,19sleep10-21swapper/107:07:561
33507692225196,18sleep00-21swapper/007:06:580
3351205997067,1cyclictest0-21swapper/310:45:013
3351205995044,4cyclictest3585041-21/usr/share/muni11:40:053
3351205994532,12cyclictest3209071-1kworker/3:2H+kblockd07:40:033
3351201994541,3cyclictest3537483-21CacheThread_Blo10:45:002
3351201994535,7cyclictest3593242-21kworker/2:1+pm12:30:402
3351193994542,2cyclictest3394633-21kworker/u8:1+flush-179:008:55:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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