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2026-06-25 - 09:05
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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 Jun 25, 2026 00:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
846699135134,1cyclictest1844-21nfsd00:27:371
8492997977,1cyclictest49-21ksoftirqd/400:27:374
8492997839,30cyclictest1-21systemd00:27:374
849999770,76cyclictest14496-21kworker/5:600:27:375
315882700,1sleep09-21ksoftirqd/022:41:220
88302560,0sleep70-21swapper/723:27:597
86232560,1sleep58552-21sshd21:32:475
224872500,0sleep00-21swapper/023:15:180
224872500,0sleep00-21swapper/023:15:180
39212490,1sleep03916-21systemd23:17:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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