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2026-07-13 - 16:52
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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 Jul 13, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
192059913992,47cyclictest25-21ksoftirqd/110:14:461
19225999897,1cyclictest1843-21nfsd10:14:467
252782670,1sleep0721-21dbus-daemon11:23:020
1921799657,52cyclictest10600-21kworker/u16:410:14:466
1897925239,9sleep30-21swapper/307:05:433
165232510,0sleep341-21ksoftirqd/312:13:273
1884625026,9sleep50-21swapper/507:03:535
292092490,0sleep729190-21sshd11:05:157
303252480,1sleep730328-21bash12:19:487
292142480,0sleep229213-21systemd-cgroups09:49:252
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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