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2026-03-26 - 23:13
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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
Characteristics of the 20 highest latencies:
System rack6slot6 (updated Thu Mar 26, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
561199209910105424,104484cyclictest0-21swapper09:38:300
56119910702253444,53456cyclictest22584-21rm10:44:190
56119910685553425,53340cyclictest3950irq/9-acpi11:09:260
56119910667553454,53221cyclictest0-21swapper11:21:390
56119910667353445,53228cyclictest0-21swapper07:21:400
56119910657053383,53095cyclictest0-21swapper09:34:290
56119910653453395,53139cyclictest0-21swapper09:07:310
56119910652253410,53014cyclictest8348-21ssh10:22:530
56119910649853473,53017cyclictest22538-21kworker/0:111:43:460
56119910649553468,53027cyclictest0-21swapper08:53:370
56119910648153459,53022cyclictest0-21swapper11:13:370
56119910645853448,53010cyclictest0-21swapper11:56:300
56119910639353414,52979cyclictest0-21swapper10:39:270
56119910626953395,52874cyclictest0-21swapper12:13:140
56119910622353478,52745cyclictest0-21swapper08:27:390
56119910622253472,52750cyclictest0-21swapper10:58:230
56119910622153474,52747cyclictest0-21swapper08:11:550
56119910622053447,52773cyclictest0-21swapper08:04:530
56119910621953476,52743cyclictest0-21swapper07:52:290
56119910619253463,52729cyclictest0-21swapper10:45:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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