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2026-06-23 - 15:28
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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 Tue Jun 23, 2026 12:46:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31784923350,3sleep30-21swapper/307:05:203
31933099332331,1cyclictest359289-21kworker/0:111:44:030
31933099330329,1cyclictest359289-21kworker/0:111:53:030
31933099330328,1cyclictest0-21swapper/010:10:030
31933099329327,1cyclictest0-21swapper/010:20:020
31933099328327,1cyclictest0-21swapper/012:25:020
31933099327326,1cyclictest0-21swapper/012:39:020
31933099327326,1cyclictest0-21swapper/012:30:020
31933099327326,1cyclictest0-21swapper/009:22:020
31933099326325,1cyclictest0-21swapper/011:25:030
31933099325323,1cyclictest359289-21kworker/0:110:07:020
31933099324323,1cyclictest359289-21kworker/0:111:11:030
31933099324323,1cyclictest359289-21kworker/0:109:03:020
31933099324323,1cyclictest0-21swapper/010:48:020
31933099324323,1cyclictest0-21swapper/009:19:020
31933099324323,1cyclictest0-21swapper/009:19:020
31933099324322,1cyclictest0-21swapper/010:59:020
31933099323322,1cyclictest0-21swapper/012:17:030
31933099323322,1cyclictest0-21swapper/011:34:030
31934499321320,1cyclictest569027-21kworker/2:010:15:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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