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2026-10-28 - 05:14
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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 Wed Oct 28, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
65652780,0sleep60-21swapper/623:10:016
285342720,2sleep42384999cyclictest19:45:124
80612550,1sleep125-21ksoftirqd/119:21:061
29092550,0sleep22910-21systemd-cgroups23:02:442
201352550,1sleep3758-21runrttasks22:57:413
50202540,0sleep20-21swapper/220:28:272
135332540,1sleep51-21systemd00:32:185
149092500,0sleep60-21swapper/622:29:416
323852490,0sleep60-21swapper/620:27:596
242322490,1sleep5721-21dbus-daemon21:09:385
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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