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2026-06-23 - 20:12
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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 20 highest latencies:
System rackeslot2.osadl.org (updated Tue Jun 23, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26503702990,2sleep30-21swapper/312:30:103
26401622980,1sleep20-21swapper/212:25:002
23563552670,1sleep02356353-21ssh09:15:000
25056002280,1sleep30-21swapper/310:55:033
2200381992724,2cyclictest0-21swapper/112:40:021
2200382992523,1cyclictest0-21swapper/207:30:022
2200382992522,1cyclictest0-21swapper/209:10:022
2200381992515,4cyclictest1237-21mta-sts-daemon11:27:431
2200380992516,5cyclictest660-21dbus-daemon12:40:010
220038199249,5cyclictest0-21swapper/112:20:051
2200380992420,2cyclictest2245849-21sh07:45:030
2200382992321,1cyclictest0-21swapper/210:05:012
2200382992219,1cyclictest0-21swapper/212:35:022
2200381992216,2cyclictest67250irq/126-eno112:15:011
2200380992212,6cyclictest2574381-21kthreadcore11:40:100
2200380992211,6cyclictest0-21swapper/007:20:030
2200380992211,6cyclictest0-21swapper/007:20:030
25386362210,2sleep20-21swapper/211:15:102
2200382992119,1cyclictest0-21swapper/209:05:032
2200381992118,2cyclictest2343763-21df09:05:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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