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2026-05-31 - 21:33
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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 Sun May 31, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2342421070,0sleep5551rcuc/512:35:005
292652760,2sleep0101ktimersoftd/010:36:010
39132600,1sleep341-21ksoftirqd/310:58:473
244225644,9sleep70-21swapper/707:06:047
70302540,1sleep315-21kswork09:53:433
290082540,2sleep0277899cyclictest11:50:340
290082540,2sleep0277899cyclictest11:50:340
205922520,2sleep7281699cyclictest09:19:037
76262510,1sleep11-21systemd10:29:051
47682510,0sleep70-21swapper/709:38:417
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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