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2026-07-05 - 10:00
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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 Jul 05, 2026 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3784661996928,39cyclictest3976811-21kworker/1:200:05:161
3784661996738,28cyclictest3793258-21kworker/1:019:55:211
3784661996736,30cyclictest2540680-1kworker/1:1H00:20:001
3784661996562,2cyclictest0-21swapper/119:10:321
3784661996561,2cyclictest0-21swapper/120:00:421
378466199648,54cyclictest0-21swapper/121:15:211
3784661996426,36cyclictest3972170-21kworker/1:100:03:021
378466199640,62cyclictest0-21swapper/119:35:301
3784661996361,1cyclictest0-21swapper/120:12:511
3784661996341,20cyclictest3911881-21kworker/1:022:55:151
378466199630,62cyclictest0-21swapper/121:55:211
378466199630,61cyclictest0-21swapper/123:20:241
378466199630,61cyclictest0-21swapper/122:14:181
3784661996260,1cyclictest0-21swapper/123:01:001
3784661996260,1cyclictest0-21swapper/120:22:421
3784661996243,18cyclictest3997149-21kworker/1:200:38:081
3784661996242,19cyclictest3790837-21kworker/1:319:30:151
3784661996237,15cyclictest3892708-21kworker/1:222:52:441
378466199620,61cyclictest0-21swapper/123:05:271
3784661996159,1cyclictest0-21swapper/120:41:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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