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2026-05-25 - 12:59
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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 rackdslot1.osadl.org (updated Mon May 25, 2026 00:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
214082730,5sleep00-21swapper/000:00:200
134491710,4ptp4l18391-21irqstats19:15:193
1522299655,10cyclictest2318-21gnome-shell21:15:252
1522299634,11cyclictest757-21polkitd21:00:252
1522299620,60cyclictest0-21swapper/222:10:292
1522299620,60cyclictest0-21swapper/222:10:292
46198610,4rtkit-daemon22164-21apt-get19:25:133
1522299596,51cyclictest0-21swapper/220:30:292
1522299593,15cyclictest0-21swapper/219:10:132
134491590,5ptp4l0-21swapper/300:35:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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