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2025-10-19 - 21:46
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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 Sun Oct 19, 2025 12:46:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
407765999381379,1cyclictest4193673-21kworker/2:011:35:022
407765999381379,1cyclictest0-21swapper/210:10:022
407765999380378,1cyclictest184961-21kworker/2:208:09:022
407765999380378,1cyclictest184961-21kworker/2:208:09:022
4077659993800,379cyclictest0-21swapper/211:23:022
4077659993800,379cyclictest0-21swapper/211:17:022
4077659993800,379cyclictest0-21swapper/208:50:032
407765999379378,1cyclictest0-21swapper/212:00:032
407765999379377,1cyclictest184961-21kworker/2:209:23:022
407764899379378,1cyclictest34175-21kworker/1:111:15:021
407764899379378,1cyclictest0-21swapper/107:39:021
4077648993790,378cyclictest0-21swapper/108:31:031
407764899378376,1cyclictest0-21swapper/112:15:021
407765999377376,1cyclictest0-21swapper/208:20:032
407765999377376,1cyclictest0-21swapper/207:22:032
407765999377375,1cyclictest0-21swapper/208:00:022
407764899377376,1cyclictest0-21swapper/111:06:011
407764899377376,1cyclictest0-21swapper/110:55:021
407764899377375,1cyclictest34175-21kworker/1:111:14:021
407765999376375,1cyclictest0-21swapper/209:10:032
407765999375374,1cyclictest0-21swapper/209:25:022
407765999375374,1cyclictest0-21swapper/209:07:022
407765999375373,1cyclictest4193673-21kworker/2:010:53:022
407765999375373,1cyclictest0-21swapper/208:44:022
407764899375374,1cyclictest4084758-21kworker/1:107:40:021
407764899375373,1cyclictest0-21swapper/107:15:021
407765999374373,1cyclictest0-21swapper/209:45:022
407765999374372,1cyclictest184961-21kworker/2:209:04:022
407764899374373,1cyclictest4143891-21kworker/1:210:02:021
407764899374373,1cyclictest34175-21kworker/1:111:34:021
407764899374373,1cyclictest0-21swapper/112:21:021
407764899374373,1cyclictest0-21swapper/108:22:021
407764899374372,1cyclictest0-21swapper/111:48:021
407765999373372,1cyclictest184961-21kworker/2:210:26:032
407765999373371,1cyclictest4193673-21kworker/2:012:05:022
407765999373371,1cyclictest184961-21kworker/2:207:43:032
407764899373372,1cyclictest0-21swapper/112:29:021
407764899373372,1cyclictest0-21swapper/112:29:021
407764899373372,1cyclictest0-21swapper/111:39:021
407764899373372,1cyclictest0-21swapper/107:29:021
407764899373372,1cyclictest0-21swapper/107:12:031
407765999372371,1cyclictest0-21swapper/210:08:022
407765999372371,1cyclictest0-21swapper/207:35:032
407765999372370,1cyclictest184961-21kworker/2:208:25:022
407764899372371,1cyclictest4143891-21kworker/1:211:03:021
407764899372371,1cyclictest4084758-21kworker/1:107:46:021
407764899372371,1cyclictest0-21swapper/108:41:031
407764899372371,1cyclictest0-21swapper/108:39:031
407764899372370,1cyclictest4084758-21kworker/1:107:54:021
407765999371370,1cyclictest184961-21kworker/2:207:28:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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