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2025-07-16 - 00:17
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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 Jul 15, 2025 12:46:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
248056299381379,2cyclictest2550496-21kworker/4:309:05:034
248056299381379,1cyclictest3955486-21kworker/4:208:44:024
248056299381379,1cyclictest2544334-21kworker/4:110:32:014
2480562993810,380cyclictest0-21swapper/409:10:024
2480562993810,1cyclictest0-21swapper/412:34:024
248053699381380,1cyclictest2468382-21kworker/1:108:13:021
248056299380379,1cyclictest3955486-21kworker/4:208:16:024
248056299380379,1cyclictest2544334-21kworker/4:110:44:014
248056299380379,1cyclictest2544334-21kworker/4:110:14:014
2480562993801,1cyclictest0-21swapper/410:24:034
2480536993800,380cyclictest0-21swapper/112:10:011
2480536993800,1cyclictest0-21swapper/107:46:031
248056299379378,1cyclictest2649792-21kworker/4:212:26:024
248056299378377,1cyclictest3955486-21kworker/4:207:27:034
248056299378377,1cyclictest3955486-21kworker/4:207:27:034
248056299378377,1cyclictest3955486-21kworker/4:207:19:034
248056299378377,1cyclictest2544334-21kworker/4:111:19:024
248053699378377,1cyclictest2637486-21kworker/1:012:38:011
248053699378377,1cyclictest2468382-21kworker/1:110:45:031
248053699378377,1cyclictest2468382-21kworker/1:108:42:021
248053699378377,1cyclictest2468382-21kworker/1:108:08:021
248053699378376,1cyclictest0-21swapper/109:44:011
248053699376375,1cyclictest0-21swapper/111:57:031
248053699376374,1cyclictest2468382-21kworker/1:109:54:021
248053699376374,1cyclictest0-21swapper/108:46:021
248053099376374,1cyclictest2454864-21kworker/0:010:35:020
248056299375374,1cyclictest2544334-21kworker/4:110:55:034
248056299375374,1cyclictest0-21swapper/409:36:014
248053699375374,1cyclictest0-21swapper/109:32:011
248053699375374,1cyclictest0-21swapper/108:54:021
248053699375374,1cyclictest0-21swapper/108:54:021
248053699375374,1cyclictest0-21swapper/107:44:021
248053699375374,1cyclictest0-21swapper/107:21:021
248053099375373,1cyclictest0-21swapper/012:05:030
248056299374373,1cyclictest3955486-21kworker/4:208:04:034
248056299374373,1cyclictest2544334-21kworker/4:111:08:034
248056299374372,1cyclictest2550496-21kworker/4:309:16:034
248053699374373,1cyclictest2468382-21kworker/1:107:56:031
248053699374372,1cyclictest0-21swapper/109:47:021
248053699374372,1cyclictest0-21swapper/109:20:031
248053099374372,1cyclictest0-21swapper/010:02:020
248056299373372,1cyclictest2544334-21kworker/4:110:00:024
248056299373372,1cyclictest0-21swapper/412:22:024
248056299373372,1cyclictest0-21swapper/411:55:024
248056299373372,1cyclictest0-21swapper/410:05:024
248056299373372,1cyclictest0-21swapper/409:59:024
248056299373372,1cyclictest0-21swapper/408:30:034
248053699373372,1cyclictest0-21swapper/111:06:021
248053699373371,1cyclictest0-21swapper/108:55:031
248053099373372,1cyclictest0-21swapper/010:21:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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