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2026-08-29 - 12:19
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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 Sat Aug 29, 2026 00:46:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
322042499378377,1cyclictest3372569-21kworker/5:023:03:025
322043299359356,1cyclictest3254324-21kworker/6:020:11:026
322043999356354,1cyclictest3401509-21kworker/7:023:01:027
322040099344341,1cyclictest0-21swapper/220:11:022
322043999329328,1cyclictest3447983-21kworker/7:223:32:027
322043999318317,1cyclictest3263341-21kworker/7:021:07:017
322040899317315,1cyclictest0-21swapper/323:01:013
322039399317315,1cyclictest3293404-21diskmemload23:01:021
322043999308306,1cyclictest0-21swapper/723:19:017
322043999302300,1cyclictest0-21swapper/723:55:027
322043999300298,1cyclictest0-21swapper/720:37:027
322043999297296,1cyclictest0-21swapper/723:09:017
322043999297295,1cyclictest3528212-21kworker/7:119:37:027
322043999297294,2cyclictest3401509-21kworker/7:000:13:017
322043999295294,1cyclictest3528212-21kworker/7:119:55:017
322043999295294,1cyclictest3293447-21kworker/7:221:17:027
322043999294292,1cyclictest3263341-21kworker/7:020:31:027
322043999294292,1cyclictest0-21swapper/723:24:027
322043999293291,1cyclictest0-21swapper/700:00:017
322043999293290,2cyclictest3293447-21kworker/7:221:35:027
322043999291290,1cyclictest3355926-21kworker/7:022:06:017
322040899290288,1cyclictest0-21swapper/323:32:013
322039399290289,1cyclictest0-21swapper/123:32:011
322043999289287,1cyclictest0-21swapper/722:40:017
322043999289287,1cyclictest0-21swapper/722:12:027
322043999288287,1cyclictest0-21swapper/700:28:027
322043999288286,1cyclictest3401509-21kworker/7:023:43:017
322043999287285,1cyclictest3401509-21kworker/7:023:27:027
322043999287285,1cyclictest3401509-21kworker/7:000:36:027
322043999286285,1cyclictest0-21swapper/722:28:017
322043999286284,1cyclictest3401509-21kworker/7:023:52:027
322043999286284,1cyclictest3401509-21kworker/7:023:52:027
322043999286283,2cyclictest3401509-21kworker/7:000:24:017
322043999285284,1cyclictest3401509-21kworker/7:023:12:017
322043999285284,1cyclictest0-21swapper/721:32:027
322043999285283,2cyclictest3401509-21kworker/7:000:09:017
322043999285283,1cyclictest3528212-21kworker/7:120:06:027
322043999285283,1cyclictest3528212-21kworker/7:119:50:027
322043999285283,1cyclictest3401509-21kworker/7:000:32:027
322043999285283,1cyclictest3293447-21kworker/7:221:20:027
322043999285283,1cyclictest0-21swapper/722:20:027
322043999284283,1cyclictest0-21swapper/721:12:017
322043999284283,1cyclictest0-21swapper/719:30:027
322043999284283,1cyclictest0-21swapper/719:30:027
322043999284282,2cyclictest3401509-21kworker/7:023:35:017
322043999284282,1cyclictest0-21swapper/721:40:017
322043999283282,1cyclictest0-21swapper/722:47:017
322043999283282,1cyclictest0-21swapper/719:15:027
322043999282281,1cyclictest3528212-21kworker/7:120:03:027
322043999282281,1cyclictest0-21swapper/720:55:027
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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