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2026-04-10 - 22:16
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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 100 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
283135799372371,1cyclictest3094719-21kworker/1:110:20:021
283135799372371,1cyclictest0-21swapper/112:25:021
283135799372371,1cyclictest0-21swapper/112:05:031
283135799372371,1cyclictest0-21swapper/110:35:021
283135799372371,1cyclictest0-21swapper/108:58:021
283135799372371,1cyclictest0-21swapper/108:07:031
283135799371370,1cyclictest3094719-21kworker/1:110:40:021
283135799371370,1cyclictest3094719-21kworker/1:109:20:021
283135799371370,1cyclictest3094719-21kworker/1:108:10:031
283135799371370,1cyclictest0-21swapper/111:30:021
283135799371369,1cyclictest3094719-21kworker/1:110:33:021
283135799371369,1cyclictest0-21swapper/112:16:021
283135799370369,1cyclictest3094719-21kworker/1:112:10:021
283135799370369,1cyclictest3094719-21kworker/1:111:17:021
283135799370369,1cyclictest3094719-21kworker/1:111:17:021
283135799370369,1cyclictest3094719-21kworker/1:108:23:021
283135799370369,1cyclictest3094719-21kworker/1:108:23:021
283135799370369,1cyclictest0-21swapper/111:38:021
283135799370369,1cyclictest0-21swapper/107:23:021
283135799370369,1cyclictest0-21swapper/107:16:021
283135799369368,1cyclictest3094719-21kworker/1:112:03:021
283135799369368,1cyclictest3094719-21kworker/1:111:48:021
283135799369368,1cyclictest3094719-21kworker/1:110:26:021
283135799369368,1cyclictest3000678-21kworker/1:212:38:021
283135799369368,1cyclictest0-21swapper/111:51:021
283135799369368,1cyclictest0-21swapper/109:37:021
283135799369368,1cyclictest0-21swapper/107:39:021
283135799369367,2cyclictest0-21swapper/110:13:021
283135799369367,1cyclictest3094719-21kworker/1:111:23:021
283135799369367,1cyclictest0-21swapper/109:47:021
283135799369367,1cyclictest0-21swapper/107:41:031
283135799368367,1cyclictest3094719-21kworker/1:111:56:021
283135799368367,1cyclictest0-21swapper/111:11:021
283135799368367,1cyclictest0-21swapper/110:01:021
283135799368367,1cyclictest0-21swapper/109:53:021
283135799368367,1cyclictest0-21swapper/109:53:021
283135799368367,1cyclictest0-21swapper/109:13:031
283135799367366,1cyclictest3094719-21kworker/1:110:53:021
283135799367366,1cyclictest0-21swapper/107:12:031
283135799367365,1cyclictest3094719-21kworker/1:109:18:021
283135799366365,1cyclictest3094719-21kworker/1:108:48:021
283135799366365,1cyclictest3094719-21kworker/1:107:27:021
283135799366365,1cyclictest0-21swapper/110:08:021
283135799365364,1cyclictest0-21swapper/110:16:021
283140399338337,1cyclictest0-21swapper/709:35:027
283140399337336,1cyclictest0-21swapper/710:41:027
283140399336335,1cyclictest0-21swapper/709:03:027
283140399334332,1cyclictest2901399-21kworker/7:009:05:027
283140399331330,1cyclictest2922462-21kworker/7:110:56:027
283140399330329,1cyclictest2922462-21kworker/7:112:30:027
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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