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2026-04-10 - 19:23
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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 50 highest latencies:
System rackcslot6.osadl.org (updated Fri Apr 10, 2026 12:46:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
283137599382380,1cyclictest2973603-21kworker/3:012:15:023
283137599381379,1cyclictest2874256-21kworker/3:209:07:023
283137599380379,1cyclictest3113081-21kworker/3:007:58:023
283137599380379,1cyclictest2973603-21kworker/3:011:18:023
283137599380379,1cyclictest2973603-21kworker/3:011:18:023
2831375993800,379cyclictest0-21swapper/308:25:023
2831375993800,1cyclictest0-21swapper/310:15:033
283137599379378,1cyclictest2913423-21kworker/3:210:42:023
283137599379378,1cyclictest2913423-21kworker/3:209:41:023
283137599379378,1cyclictest2874256-21kworker/3:208:37:023
283137599379377,1cyclictest3113081-21kworker/3:008:02:023
283137599379377,1cyclictest2973603-21kworker/3:011:37:023
283137599379377,1cyclictest2913423-21kworker/3:210:37:023
283137599379377,1cyclictest2913423-21kworker/3:210:11:023
283137599379377,1cyclictest2913423-21kworker/3:209:52:023
283137599379377,1cyclictest2913423-21kworker/3:209:52:023
283137599379377,1cyclictest2907406-21kworker/3:009:17:023
283137599379377,1cyclictest2874256-21kworker/3:208:52:023
283137599379377,1cyclictest0-21swapper/312:26:033
283137599379377,1cyclictest0-21swapper/311:49:023
283137599379377,1cyclictest0-21swapper/307:38:023
283137599378377,1cyclictest3113081-21kworker/3:007:31:033
283137599378377,1cyclictest3113081-21kworker/3:007:22:023
283137599378377,1cyclictest2913423-21kworker/3:210:49:023
283137599378377,1cyclictest2913423-21kworker/3:209:31:023
283137599378377,1cyclictest0-21swapper/312:11:023
283137599378377,1cyclictest0-21swapper/311:58:033
283137599378377,1cyclictest0-21swapper/311:41:023
283137599378377,1cyclictest0-21swapper/311:07:023
283137599378377,1cyclictest0-21swapper/309:21:023
283137599378376,1cyclictest0-21swapper/311:21:023
283137599378376,1cyclictest0-21swapper/310:32:023
283135799378377,1cyclictest3094719-21kworker/1:109:25:021
283137599377376,1cyclictest3113081-21kworker/3:008:06:023
283137599377376,1cyclictest2913423-21kworker/3:210:07:023
283135799377376,1cyclictest0-21swapper/111:05:021
283135799377375,1cyclictest3094719-21kworker/1:108:35:021
283137599376375,1cyclictest3113081-21kworker/3:008:18:023
283137599376375,1cyclictest0-21swapper/310:52:023
283136799376371,2cyclictest0-21swapper/212:00:022
283135799376375,1cyclictest0-21swapper/111:25:021
283135799375373,1cyclictest0-21swapper/107:50:021
283135799374373,1cyclictest0-21swapper/108:32:021
283135799374372,1cyclictest3094719-21kworker/1:109:40:021
283135799373372,1cyclictest3094719-21kworker/1:108:50:021
283135799373372,1cyclictest3000678-21kworker/1:212:20:021
283135799373372,1cyclictest0-21swapper/111:00:021
283135799373372,1cyclictest0-21swapper/109:57:021
283135799373372,1cyclictest0-21swapper/109:00:021
283135799373372,1cyclictest0-21swapper/107:45:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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