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2026-06-10 - 14:20
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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 rackeslot3.osadl.org (updated Wed Jun 10, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3408447996561,2cyclictest0-21swapper/122:27:221
340844799650,63cyclictest0-21swapper/122:46:021
3408447996339,14cyclictest3418085-21kworker/1:319:40:371
3408447996337,25cyclictest3536035-21kworker/1:023:25:141
3408447996145,15cyclictest3541255-21kworker/1:123:00:131
3408447996141,19cyclictest3427610-21kworker/1:020:25:141
3408448996045,3cyclictest3159930-1kworker/2:1H22:56:152
3408447996057,2cyclictest0-21swapper/121:15:061
3408447996043,16cyclictest3411897-21kworker/1:119:20:151
3408447995942,16cyclictest3564061-21kworker/1:223:30:131
3408447995942,16cyclictest3512069-21kworker/1:222:55:161
3408447995942,16cyclictest3446714-21kworker/1:221:30:011
3408447995941,17cyclictest3505805-21kworker/1:122:30:141
3408447995843,14cyclictest3570312-21kworker/1:123:35:161
3408447995843,14cyclictest3479757-21kworker/1:022:21:511
3408447995839,18cyclictest3459453-21kworker/1:121:56:401
3408447995743,14cyclictest3590985-21kworker/1:300:15:151
3408447995742,14cyclictest3586406-21kworker/1:123:55:041
3408447995742,14cyclictest3582063-21kworker/1:200:00:151
3408447995742,14cyclictest3570312-21kworker/1:123:40:061
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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