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2026-06-13 - 06:41
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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 rackcslot6.osadl.org (updated Sat Jun 13, 2026 00:46:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
681658993810,380cyclictest0-21swapper/022:11:020
68165899380379,1cyclictest782544-21kworker/0:000:25:020
68165899378376,1cyclictest0-21swapper/020:38:020
68165899377376,1cyclictest684674-21kworker/0:219:32:020
68165899377376,1cyclictest0-21swapper/020:04:020
68165899377376,1cyclictest0-21swapper/019:38:020
68165899377375,1cyclictest0-21swapper/020:08:020
68165899376374,1cyclictest0-21swapper/020:53:020
68165899375374,1cyclictest0-21swapper/020:44:020
68165899375374,1cyclictest0-21swapper/019:21:020
68165899375373,1cyclictest684674-21kworker/0:220:28:010
68167699372370,1cyclictest0-21swapper/223:37:012
68167699370368,1cyclictest0-21swapper/223:05:012
68167699368367,1cyclictest0-21swapper/222:47:022
68167699368367,1cyclictest0-21swapper/222:05:022
68167699368366,1cyclictest866843-21ssh22:43:022
68167699368366,1cyclictest691530-21kworker/2:221:33:022
68167699368366,1cyclictest0-21swapper/223:17:022
68167699368365,1cyclictest691530-21kworker/2:221:19:012
68167699367366,1cyclictest0-21swapper/200:20:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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