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2026-03-31 - 09:08
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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 Tue Mar 31, 2026 00:46:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
312098299377375,1cyclictest3139798-21kworker/7:020:17:027
312096199356355,1cyclictest3419916-21kworker/4:123:13:014
312093899352351,1cyclictest3218855-21kworker/1:023:03:021
312093899351350,1cyclictest0-21swapper/121:10:021
312093899351350,1cyclictest0-21swapper/120:07:021
312093899351350,1cyclictest0-21swapper/120:07:021
312093899351348,2cyclictest3166875-21kworker/1:120:59:011
312093899349348,1cyclictest0-21swapper/100:15:021
312093899349348,1cyclictest0-21swapper/100:07:021
312093899349346,2cyclictest3218855-21kworker/1:022:30:021
312093899348347,1cyclictest0-21swapper/123:52:011
312093899348347,1cyclictest0-21swapper/123:25:021
312093899348347,1cyclictest0-21swapper/122:11:021
312093899348347,1cyclictest0-21swapper/100:04:031
312093899347345,1cyclictest0-21swapper/123:20:031
312098299346344,1cyclictest0-21swapper/722:53:017
312093899346345,1cyclictest3218855-21kworker/1:021:48:011
312093899346345,1cyclictest0-21swapper/100:11:021
312093899345344,1cyclictest0-21swapper/123:49:021
312093899345344,1cyclictest0-21swapper/122:21:011
312093899345344,1cyclictest0-21swapper/100:30:031
312093899344343,1cyclictest0-21swapper/122:44:031
312093899344343,1cyclictest0-21swapper/122:06:011
312093899344343,1cyclictest0-21swapper/121:18:011
312098299343342,1cyclictest0-21swapper/721:29:017
312098299343341,1cyclictest3139798-21kworker/7:022:38:027
312098299343341,1cyclictest0-21swapper/722:15:027
312093899343341,1cyclictest3218855-21kworker/1:023:39:021
312098299342341,1cyclictest3139798-21kworker/7:022:24:027
312098299342341,1cyclictest0-21swapper/722:45:027
312093899342341,1cyclictest3218855-21kworker/1:022:37:011
312093899342341,1cyclictest0-21swapper/121:35:021
312093899342341,1cyclictest0-21swapper/121:01:021
312098299341340,1cyclictest3139798-21kworker/7:021:30:027
312098299341340,1cyclictest3139798-21kworker/7:021:30:017
312098299341340,1cyclictest0-21swapper/723:54:027
312098299341340,1cyclictest0-21swapper/723:36:037
312098299341340,1cyclictest0-21swapper/723:19:017
312098299341339,1cyclictest0-21swapper/700:02:037
312098299340339,1cyclictest3335883-21kworker/7:023:14:027
312098299340339,1cyclictest3139798-21kworker/7:021:50:017
312098299340339,1cyclictest0-21swapper/722:56:037
312098299340339,1cyclictest0-21swapper/722:56:027
312098299340338,1cyclictest0-21swapper/723:26:027
312098299340338,1cyclictest0-21swapper/722:27:017
312093899340339,1cyclictest3423049-21kworker/1:019:10:021
312093899340339,1cyclictest3218855-21kworker/1:023:42:021
312093899340338,2cyclictest3218855-21kworker/1:023:09:011
312093899340338,2cyclictest3218855-21kworker/1:021:54:021
312093899340338,1cyclictest3427307-21kworker/1:200:37:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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