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2026-06-24 - 10:34
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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 Wed Jun 24, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34267162990,2sleep10-21swapper/122:40:041
34504482780,1sleep13450416-21ssh22:55:111
35072342670,1sleep03507232-21ssh23:32:370
3148082992825,2cyclictest3225442-21sh20:15:021
3148083992623,1cyclictest0-21swapper/222:05:012
3148083992522,1cyclictest0-21swapper/221:20:002
3148081992513,7cyclictest3434910-21kthreadcore22:45:090
3148082992415,3cyclictest0-21swapper/121:25:021
3148081992421,2cyclictest3485461-21apt-get23:20:030
3148081992421,2cyclictest3336774-21systemd21:40:010
3148081992415,5cyclictest3148079-21cyclictest22:10:040
3148083992218,2cyclictest0-21swapper/219:15:022
3148081992219,2cyclictest1-21systemd19:55:010
3148081992211,6cyclictest0-21swapper/000:20:110
3148083992119,1cyclictest0-21swapper/221:05:032
3148083992119,1cyclictest0-21swapper/200:30:022
3148083992118,1cyclictest0-21swapper/223:05:012
3148082992118,2cyclictest3292223-21systemd21:10:021
3148082992118,2cyclictest3292223-21systemd21:10:021
3148081992118,2cyclictest660-21dbus-daemon20:10:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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