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2026-04-03 - 13:05
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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 03, 2026 00:46:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2829599382380,1cyclictest4180481-21kworker/1:119:41:021
2829599381379,1cyclictest89286-21kworker/1:220:54:021
2831299373370,2cyclictest120570-21kworker/3:022:00:023
2831299373370,2cyclictest120570-21kworker/3:022:00:013
2831299370368,1cyclictest0-21swapper/323:45:023
2831999368367,1cyclictest0-21swapper/423:39:024
2831299368367,1cyclictest343081-21ssh00:30:013
2831299368366,1cyclictest101289-21diskmemload23:34:023
2831299368366,1cyclictest101289-21diskmemload23:34:023
2831299368365,2cyclictest120570-21kworker/3:021:51:013
2831299366365,1cyclictest294892-21ssh23:50:013
2831299366365,1cyclictest264565-21kworker/3:100:04:013
2831299366365,1cyclictest0-21swapper/322:14:023
2831299365364,1cyclictest104890-21kworker/3:121:15:023
2831299365363,1cyclictest120570-21kworker/3:023:24:013
2831299365363,1cyclictest120570-21kworker/3:022:38:013
2831299365363,1cyclictest0-21swapper/321:41:023
2834199364363,1cyclictest0-21swapper/722:00:027
2834199364363,1cyclictest0-21swapper/722:00:017
2831299364362,1cyclictest120570-21kworker/3:022:06:013
2831299363362,1cyclictest120570-21kworker/3:023:13:013
2831299363362,1cyclictest120570-21kworker/3:022:31:023
2831299363362,1cyclictest120570-21kworker/3:022:27:023
2831299363362,1cyclictest0-21swapper/323:41:023
2831299363362,1cyclictest0-21swapper/322:54:023
2831299363362,1cyclictest0-21swapper/320:35:023
2831299363362,1cyclictest0-21swapper/320:35:013
2831299363362,1cyclictest0-21swapper/300:28:013
2831299363361,1cyclictest120570-21kworker/3:022:40:013
2831299363361,1cyclictest0-21swapper/300:24:023
2834199362361,1cyclictest243119-21kworker/7:023:45:017
2831299362361,1cyclictest120570-21kworker/3:021:48:023
2831299362361,1cyclictest104890-21kworker/3:121:28:013
2831299362360,1cyclictest0-21swapper/323:36:013
2834199361360,1cyclictest316402-21kworker/7:200:30:027
2834199361359,1cyclictest0-21swapper/721:51:027
2831299361360,1cyclictest264565-21kworker/3:123:57:013
2831299361360,1cyclictest264565-21kworker/3:100:11:023
2831299361360,1cyclictest120570-21kworker/3:022:55:023
2831299361360,1cyclictest0-21swapper/323:17:013
2831299361360,1cyclictest0-21swapper/322:48:013
2831299361360,1cyclictest0-21swapper/321:57:013
2831299361360,1cyclictest0-21swapper/300:05:023
2834199360359,1cyclictest243119-21kworker/7:023:34:027
2834199360359,1cyclictest243119-21kworker/7:023:34:017
2831299360359,1cyclictest1503752-21kworker/3:219:22:013
2831299360359,1cyclictest120570-21kworker/3:023:03:023
2831299360359,1cyclictest120570-21kworker/3:022:24:013
2831299360359,1cyclictest0-21swapper/300:35:013
2831299360358,1cyclictest79943-21kworker/3:021:00:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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