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2025-12-06 - 20:46
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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 Sat Dec 06, 2025 12:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3222249997242,28cyclictest3311369-21kworker/1:211:45:011
3222249997241,30cyclictest3283766-21kworker/1:210:20:161
3222249997240,31cyclictest3318225-21kworker/1:312:00:171
322224999721,4cyclictest0-21swapper/112:15:011
3222249997142,28cyclictest3262179-21kworker/1:009:10:171
3222249997140,29cyclictest3274651-21kworker/1:009:45:151
3222249997140,29cyclictest3222747-21kworker/1:107:30:161
3222249997041,27cyclictest3293528-21kworker/1:111:10:151
3222249997041,27cyclictest3293528-21kworker/1:111:10:141
3222249997039,29cyclictest3237574-21kworker/1:007:55:181
3222249997039,29cyclictest3237574-21kworker/1:007:55:181
3222249996739,25cyclictest3262179-21kworker/1:009:10:001
3222249996737,28cyclictest3274651-21kworker/1:009:55:141
322224999671,2cyclictest0-21swapper/111:35:231
3222249996636,28cyclictest3280794-21kworker/1:110:10:151
322224999661,2cyclictest3293528-21kworker/1:111:00:351
3222249996539,24cyclictest3328371-21kworker/1:212:35:001
3222249996536,27cyclictest843155-1kworker/1:0H12:15:161
3222249996439,23cyclictest3232446-21kworker/1:208:30:161
3222249996436,26cyclictest3266038-21kworker/1:209:40:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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