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2025-10-16 - 14:03
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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 Thu Oct 16, 2025 00:46:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
269037199384383,1cyclictest2836780-21kworker/3:223:02:023
269040099383381,1cyclictest2880398-21kworker/7:023:02:027
269037199380379,1cyclictest2836780-21kworker/3:223:25:023
269037199380378,1cyclictest2836780-21kworker/3:222:38:033
269037199379378,1cyclictest2836780-21kworker/3:223:24:033
269037199378377,1cyclictest2836780-21kworker/3:223:08:023
269040099377376,1cyclictest2880398-21kworker/7:023:08:027
269040099376375,1cyclictest2753455-21kworker/7:122:35:027
269037199376375,1cyclictest2716124-21kworker/3:021:59:033
269037199376375,1cyclictest2716124-21kworker/3:021:29:033
269037199376374,1cyclictest2716124-21kworker/3:021:23:023
269040099375374,1cyclictest2753455-21kworker/7:121:59:027
269040099375374,1cyclictest2753455-21kworker/7:121:29:027
269040099375373,1cyclictest2753455-21kworker/7:121:23:027
269037199375374,1cyclictest2975019-21kworker/3:119:35:023
269037199375373,1cyclictest2852510-21ssh22:20:033
269037199375373,1cyclictest2716124-21kworker/3:022:08:033
269037199375373,1cyclictest2716124-21kworker/3:022:08:023
269040099374373,1cyclictest2680883-21kworker/7:219:35:027
269037199374372,1cyclictest2975019-21kworker/3:119:13:033
269040099373372,1cyclictest2753455-21kworker/7:122:20:037
269037199373372,1cyclictest2716124-21kworker/3:020:46:023
269037199373372,1cyclictest0-21swapper/300:34:023
269040099372371,1cyclictest2753455-21kworker/7:122:08:037
269040099372371,1cyclictest2753455-21kworker/7:122:08:037
269040099372371,1cyclictest2680883-21kworker/7:220:46:037
269037199372371,1cyclictest2975019-21kworker/3:119:49:033
269037199372371,1cyclictest2975019-21kworker/3:119:43:033
269037199372370,1cyclictest2795573-21ssh21:35:033
269040099371370,1cyclictest2950225-21kworker/7:100:34:037
269040099371370,1cyclictest2680883-21kworker/7:219:49:027
269040099371370,1cyclictest2680883-21kworker/7:219:43:027
269040099371370,1cyclictest2680883-21kworker/7:219:13:027
269037199370369,1cyclictest2716124-21kworker/3:020:58:033
269037199370369,1cyclictest0-21swapper/322:54:023
269037199370369,1cyclictest0-21swapper/321:51:033
269040099369368,1cyclictest2753455-21kworker/7:121:51:027
269040099369368,1cyclictest2753455-21kworker/7:121:35:037
269040099369368,1cyclictest2753455-21kworker/7:120:58:027
269040099369367,1cyclictest2880398-21kworker/7:022:54:037
269039299369368,1cyclictest2902587-21kworker/6:223:46:036
269037199369368,1cyclictest0-21swapper/300:06:023
269040099368366,1cyclictest97850irq/166-enp0s3100:06:027
269037199368366,1cyclictest0-21swapper/323:12:033
269037199367366,1cyclictest0-21swapper/323:34:023
269037199367366,1cyclictest0-21swapper/323:15:033
269040099366365,1cyclictest2880398-21kworker/7:023:34:037
269037199366365,1cyclictest2716124-21kworker/3:020:26:033
269037199366365,1cyclictest0-21swapper/322:46:023
269040099365364,1cyclictest2880398-21kworker/7:023:23:027
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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