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2026-06-08 - 17:51
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rackeslot8.osadl.org (updated Mon Jun 08, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3572037993128,1cyclictest0-21swapper/312:30:013
39831512300,9sleep0151ktimers/011:52:030
3572037992825,1cyclictest0-21swapper/311:09:593
3572037992522,1cyclictest0-21swapper/308:00:013
3572037992320,1cyclictest0-21swapper/309:55:143
3572037992320,1cyclictest0-21swapper/309:45:213
3572037992319,1cyclictest0-21swapper/312:05:013
3572037992219,1cyclictest0-21swapper/308:30:003
3572037992219,1cyclictest0-21swapper/308:05:183
357203799218,9cyclictest3743443-21sleep09:20:003
357203799211,17cyclictest3968703-21sleep11:45:013
357203799211,16cyclictest3638720-21taskset08:00:133
357203799211,15cyclictest3899155-21chrt11:00:143
3572037992017,1cyclictest0-21swapper/311:30:133
3572037992017,1cyclictest0-21swapper/310:46:493
357203799201,14cyclictest3890208-21taskset10:52:323
357203799201,14cyclictest3612327-21taskset07:36:393
357203799201,14cyclictest3599724-21taskset07:28:253
3572037991917,1cyclictest0-21swapper/309:10:023
3572037991916,1cyclictest0-21swapper/309:27:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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