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2026-03-23 - 16:29
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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 Mon Mar 23, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29623991329,80cyclictest11564-21sshd10:25:561
222872720,2sleep02961199cyclictest12:28:010
63732630,1sleep56358-21bash10:20:005
279852590,0sleep40-21swapper/409:10:314
286832580,2sleep22962999cyclictest09:55:142
2961199570,56cyclictest6408-21kworker/0:310:25:570
2925325429,9sleep70-21swapper/707:03:517
135622540,1sleep2321ktimersoftd/210:05:312
29654995315,37cyclictest11712-21systemd10:25:576
43052510,1sleep34306-21id10:17:583
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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