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2026-04-17 - 10:55
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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 100 highest latencies:
System rackcslot6.osadl.org (updated Fri Apr 17, 2026 00:46:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
896212993810,380cyclictest1156032-21kworker/4:020:48:024
896212993810,380cyclictest0-21swapper/419:19:024
89620699381380,1cyclictest1053366-21kworker/3:123:42:023
896212993800,379cyclictest0-21swapper/419:22:024
89620699380378,1cyclictest1053366-21kworker/3:122:27:023
89620699380378,1cyclictest1053366-21kworker/3:122:27:023
89620699379378,1cyclictest1179762-21kworker/3:322:22:023
89620699379378,1cyclictest1179762-21kworker/3:321:35:023
89620699379378,1cyclictest1053366-21kworker/3:123:51:023
89620699379378,1cyclictest1053366-21kworker/3:123:51:023
89620699379377,1cyclictest1053366-21kworker/3:100:23:023
89620699378377,1cyclictest1179762-21kworker/3:320:45:033
89620699378377,1cyclictest1053366-21kworker/3:122:44:023
89620699378376,1cyclictest1179762-21kworker/3:321:50:023
89620699377376,1cyclictest1179762-21kworker/3:320:21:033
89620699377376,1cyclictest1053366-21kworker/3:123:59:023
89620699377376,1cyclictest1053366-21kworker/3:122:48:023
89620699377376,1cyclictest0-21swapper/322:02:023
89620699377376,1cyclictest0-21swapper/321:31:023
89620699377375,1cyclictest0-21swapper/322:56:023
89620699377375,1cyclictest0-21swapper/322:18:033
89620699376375,1cyclictest0-21swapper/323:32:023
89620699376374,1cyclictest1179762-21kworker/3:322:10:023
89620699376374,1cyclictest1179762-21kworker/3:321:46:033
89620699376374,1cyclictest1053366-21kworker/3:123:36:023
89620699376374,1cyclictest0-21swapper/322:09:033
89620699375374,1cyclictest1053366-21kworker/3:123:14:023
89620699375374,1cyclictest0-21swapper/323:00:023
89620699375373,1cyclictest1179762-21kworker/3:320:35:023
89620699374373,1cyclictest1179762-21kworker/3:321:42:023
89620699374373,1cyclictest1179762-21kworker/3:321:11:033
89620699374373,1cyclictest0-21swapper/322:52:033
89620699374372,1cyclictest0-21swapper/323:21:033
89620699374372,1cyclictest0-21swapper/320:10:023
89620699373372,1cyclictest1179762-21kworker/3:321:22:023
89620699373372,1cyclictest1179762-21kworker/3:319:30:023
89620699373372,1cyclictest1053366-21kworker/3:100:07:023
89620699373371,1cyclictest1053366-21kworker/3:123:09:023
89620699372371,1cyclictest1179762-21kworker/3:320:55:023
89620699372371,1cyclictest1179762-21kworker/3:320:55:023
89620699372371,1cyclictest0-21swapper/320:51:033
89620699372371,1cyclictest0-21swapper/300:02:023
89620699372370,1cyclictest0-21swapper/319:44:033
89620699372370,1cyclictest0-21swapper/319:38:033
89620699371370,1cyclictest0-21swapper/320:01:023
896191993710,0cyclictest0-21swapper/122:17:021
89620699370369,1cyclictest1179762-21kworker/3:320:27:033
89620699370369,1cyclictest1179762-21kworker/3:319:51:023
89620699370368,1cyclictest0-21swapper/320:44:023
89620699369368,1cyclictest1179762-21kworker/3:319:26:023
89620699369368,1cyclictest1179762-21kworker/3:319:26:023
89620699369368,1cyclictest0-21swapper/320:32:023
89620699369367,1cyclictest1179762-21kworker/3:319:11:033
89620699368367,1cyclictest1179762-21kworker/3:321:01:023
89620699368367,1cyclictest1179762-21kworker/3:320:06:023
89620699368367,1cyclictest0-21swapper/320:19:023
89620699367366,1cyclictest0-21swapper/319:48:033
896191993660,365cyclictest0-21swapper/100:10:021
89619199365364,1cyclictest0-21swapper/123:30:031
896191993600,0cyclictest0-21swapper/100:27:021
89619199358356,1cyclictest0-21swapper/123:25:021
89619199357356,1cyclictest0-21swapper/123:35:021
89619199357355,1cyclictest0-21swapper/123:22:021
89619199357355,1cyclictest0-21swapper/122:29:031
89619199357355,1cyclictest0-21swapper/122:29:021
89619199356355,1cyclictest0-21swapper/123:41:021
89619199356354,1cyclictest0-21swapper/121:27:031
89619199355354,1cyclictest0-21swapper/123:19:021
89619199355354,1cyclictest0-21swapper/123:10:021
89619199355354,1cyclictest0-21swapper/121:10:021
89619199355354,1cyclictest0-21swapper/100:09:021
896191993550,0cyclictest0-21swapper/122:51:021
89619199354353,1cyclictest0-21swapper/123:55:021
89619199354353,1cyclictest0-21swapper/122:30:021
89619199354353,1cyclictest0-21swapper/121:40:021
896191993540,353cyclictest0-21swapper/100:00:021
89619199353352,1cyclictest0-21swapper/122:35:031
89619199353352,1cyclictest0-21swapper/121:15:021
89619199353352,1cyclictest0-21swapper/100:39:021
89619199353351,1cyclictest0-21swapper/123:06:021
89619199353350,2cyclictest0-21swapper/121:59:021
89619199353349,2cyclictest0-21swapper/121:33:021
896191993530,352cyclictest0-21swapper/119:50:031
89619199352351,1cyclictest992135-21kworker/1:122:14:021
89619199352351,1cyclictest0-21swapper/123:48:021
89619199352351,1cyclictest0-21swapper/122:57:031
89619199352351,1cyclictest0-21swapper/121:39:021
89619199352351,1cyclictest0-21swapper/120:15:021
89619199352350,1cyclictest0-21swapper/120:21:021
89619199351350,1cyclictest0-21swapper/119:49:021
89619199351349,1cyclictest0-21swapper/100:34:021
89619199350349,1cyclictest992135-21kworker/1:122:20:021
89619199349348,1cyclictest0-21swapper/122:01:021
89619199349348,1cyclictest0-21swapper/120:40:021
89619199349348,1cyclictest0-21swapper/119:35:021
896191993490,349cyclictest0-21swapper/100:23:031
896191993490,0cyclictest0-21swapper/123:51:021
896191993490,0cyclictest0-21swapper/123:51:021
89619199348347,1cyclictest0-21swapper/122:47:021
89619199348347,1cyclictest0-21swapper/120:03:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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