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2025-12-07 - 21:28
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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 Sun Dec 07, 2025 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3435134997449,23cyclictest843155-1kworker/1:0H11:35:001
3435134997332,28cyclictest3535226-21kworker/1:112:20:141
3435134996836,31cyclictest3455381-21kworker/1:208:10:011
343513499650,2cyclictest0-21swapper/111:05:151
343513499640,63cyclictest0-21swapper/107:58:331
3435134996240,20cyclictest843155-1kworker/1:0H08:40:001
343513499620,61cyclictest0-21swapper/108:51:491
3435134996159,1cyclictest0-21swapper/109:26:001
3435134996159,1cyclictest0-21swapper/108:56:061
3435134996158,2cyclictest0-21swapper/109:30:251
3435134996158,2cyclictest0-21swapper/108:43:351
3435134996143,16cyclictest843155-1kworker/1:0H10:10:141
3435134996140,20cyclictest843155-1kworker/1:0H10:30:001
3435134996040,18cyclictest3485096-21kworker/1:009:40:121
3435134996038,21cyclictest3480293-21kworker/1:309:35:151
3435134995955,2cyclictest0-21swapper/111:19:061
3435134995944,14cyclictest3521131-21kworker/1:312:00:161
3435134995943,15cyclictest3521131-21kworker/1:311:40:481
3435134995943,15cyclictest3521131-21kworker/1:311:40:481
3435134995943,15cyclictest3455381-21kworker/1:208:15:071
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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