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2026-04-24 - 08:08
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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 24, 2026 00:46:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
352043499382381,1cyclictest3520306-21kworker/2:119:35:022
352043499382380,1cyclictest3593814-21kworker/2:222:50:022
352043499382380,1cyclictest0-21swapper/222:39:022
352043499381379,1cyclictest0-21swapper/221:01:022
3520434993810,1cyclictest0-21swapper/223:07:022
352043499380378,2cyclictest3773236-21kworker/2:023:50:022
352043499380378,2cyclictest3773236-21kworker/2:023:50:022
352043499380378,1cyclictest3593814-21kworker/2:223:26:022
352043499380378,1cyclictest3593814-21kworker/2:221:49:022
3520434993800,380cyclictest0-21swapper/200:34:022
3520434993800,379cyclictest0-21swapper/220:53:022
3520434993800,1cyclictest0-21swapper/222:08:022
3520434993800,0cyclictest0-21swapper/223:17:022
352043499379378,1cyclictest3560115-21kworker/2:020:37:022
352043499379378,1cyclictest3520306-21kworker/2:120:01:022
352043499379378,1cyclictest3520306-21kworker/2:119:53:022
352043499379378,1cyclictest3520306-21kworker/2:119:19:022
352043499379377,1cyclictest3593814-21kworker/2:223:22:022
352043499379377,1cyclictest0-21swapper/221:07:022
352043499379377,1cyclictest0-21swapper/219:31:022
352043499378377,1cyclictest3773236-21kworker/2:000:08:022
352043499378377,1cyclictest3593814-21kworker/2:222:02:022
352043499378377,1cyclictest3593814-21kworker/2:221:23:022
352043499378377,1cyclictest3520306-21kworker/2:120:07:022
352043499378376,1cyclictest3593814-21kworker/2:222:46:022
3520434993780,0cyclictest0-21swapper/200:11:022
352043499377376,1cyclictest0-21swapper/219:43:022
352043499376375,1cyclictest3593814-21kworker/2:221:36:022
352043499376375,1cyclictest0-21swapper/223:38:022
352043499376374,1cyclictest0-21swapper/200:22:022
3520434993750,1cyclictest0-21swapper/220:11:022
352043499374373,1cyclictest0-21swapper/200:26:022
352043499374372,1cyclictest3593814-21kworker/2:223:03:022
352043499373372,1cyclictest0-21swapper/221:29:022
352043499372371,1cyclictest0-21swapper/222:21:032
352043499372370,1cyclictest3593814-21kworker/2:221:19:022
352044299371369,1cyclictest0-21swapper/323:43:023
352043499368367,1cyclictest3560115-21kworker/2:020:22:022
352043499368367,1cyclictest0-21swapper/220:34:022
352043499368367,1cyclictest0-21swapper/219:56:032
352043499368367,1cyclictest0-21swapper/219:46:022
352042399368367,1cyclictest0-21swapper/122:25:021
352042399368367,1cyclictest0-21swapper/122:25:021
352042399367366,1cyclictest0-21swapper/122:19:021
352042399366364,1cyclictest0-21swapper/122:51:021
352042399365364,1cyclictest3765801-21kworker/1:123:55:021
352042399365364,1cyclictest0-21swapper/123:01:021
352042399365364,1cyclictest0-21swapper/100:31:021
352046999364362,1cyclictest3760057-21kworker/7:123:43:027
352042399364363,1cyclictest0-21swapper/122:11:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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