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2026-10-10 - 01:58
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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 Sat Oct 10, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
292762930,1sleep449-21ksoftirqd/400:21:254
216682850,0sleep233-21ksoftirqd/223:06:022
4482760,1sleep5445-21systemd21:09:525
99392580,0sleep50-21swapper/500:22:225
229502520,0sleep00-21swapper/022:12:180
1303725127,8sleep70-21swapper/719:01:517
1292725126,8sleep40-21swapper/419:00:204
164802500,0sleep30-21swapper/322:23:263
243432490,0sleep024340-21sshd22:45:020
1306024735,9sleep30-21swapper/319:02:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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