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2026-05-28 - 19:17
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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 Thu May 28, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
251612540,1sleep125-21ksoftirqd/112:31:011
103392520,0sleep70-21swapper/709:31:117
75802510,1sleep6641ktimersoftd/611:06:576
204342510,1sleep020433-21grep10:30:460
132962500,0sleep00-21swapper/009:40:330
76442490,1sleep27640-21sshd10:39:132
818124725,18sleep40-21swapper/407:04:394
818124725,18sleep40-21swapper/407:04:394
35352460,0sleep10-21swapper/110:35:201
35352460,0sleep10-21swapper/110:35:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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