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2026-05-01 - 18:47
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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
Characteristics of the 10 highest latencies:
System rack3slot0.osadl.org (updated Fri May 01, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502760,0sleep70-21swapper/709:18:327
279772690,1sleep09-21ksoftirqd/010:13:030
270372540,1sleep71-21systemd12:37:597
261122540,1sleep79382-21kworker/7:309:36:507
95492530,0sleep50-21swapper/511:16:365
301802530,1sleep730184-21bash12:32:317
301802530,1sleep730184-21bash12:32:317
78522510,1sleep27845-21systemd11:37:392
78522510,1sleep27845-21systemd11:37:392
272282510,0sleep10-21swapper/110:43:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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