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2026-05-07 - 11:41
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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 May 07, 2026 00:46:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
395148499376374,2cyclictest4021510-21kworker/0:000:31:030
395148499376374,1cyclictest4021510-21kworker/0:023:06:020
395148499374372,1cyclictest4021510-21kworker/0:023:39:010
395148499373372,1cyclictest4021510-21kworker/0:021:49:020
395148499371369,1cyclictest0-21swapper/023:32:020
395148499371369,1cyclictest0-21swapper/022:25:010
395148499370368,1cyclictest4021510-21kworker/0:022:02:010
395148499370367,2cyclictest4021510-21kworker/0:021:42:010
395148499369368,1cyclictest4021510-21kworker/0:022:45:010
395148499369367,2cyclictest4021510-21kworker/0:021:13:010
395148499369367,1cyclictest0-21swapper/022:15:010
395148499368367,1cyclictest0-21swapper/021:59:010
395148499368367,1cyclictest0-21swapper/021:59:010
395148499368366,1cyclictest0-21swapper/020:13:020
395148499367366,1cyclictest4021510-21kworker/0:021:21:010
395148499367366,1cyclictest0-21swapper/023:41:020
395148499367366,1cyclictest0-21swapper/023:12:020
395148499367365,1cyclictest4021510-21kworker/0:000:15:030
395148499367365,1cyclictest4021510-21kworker/0:000:02:010
395148499367364,2cyclictest4021510-21kworker/0:022:31:010
395148499366365,1cyclictest4021510-21kworker/0:021:33:020
395148499366365,1cyclictest0-21swapper/023:59:020
395148499366364,1cyclictest4021510-21kworker/0:022:40:030
395148499366364,1cyclictest0-21swapper/000:06:020
395148499365364,1cyclictest4021510-21kworker/0:023:01:010
395148499364363,1cyclictest4021510-21kworker/0:000:23:030
395148499364363,1cyclictest0-21swapper/020:30:010
395148499364363,1cyclictest0-21swapper/020:30:010
395148499364363,1cyclictest0-21swapper/000:36:020
395148499363362,1cyclictest685632-21kworker/0:220:15:020
395148499363362,1cyclictest0-21swapper/023:53:010
395148499363362,1cyclictest0-21swapper/022:08:020
395148499363362,1cyclictest0-21swapper/000:27:030
395148499363361,1cyclictest4021510-21kworker/0:021:27:020
395148499363361,1cyclictest0-21swapper/020:01:010
395148499362361,1cyclictest685632-21kworker/0:220:05:010
395148499362361,1cyclictest0-21swapper/023:27:020
395148499362361,1cyclictest0-21swapper/023:27:010
395148499362361,1cyclictest0-21swapper/022:11:020
395148499362360,1cyclictest0-21swapper/023:47:020
395148499362360,1cyclictest0-21swapper/022:38:010
395148499362360,1cyclictest0-21swapper/021:00:020
395148499362360,1cyclictest0-21swapper/000:11:020
395148499361360,1cyclictest685632-21kworker/0:220:46:020
395148499361360,1cyclictest685632-21kworker/0:219:55:020
395148499361360,1cyclictest685632-21kworker/0:219:47:020
395148499361360,1cyclictest685632-21kworker/0:219:13:020
395148499361360,1cyclictest0-21swapper/021:05:020
395148499360359,1cyclictest4021510-21kworker/0:022:52:020
395148499360359,1cyclictest0-21swapper/020:25:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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