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2026-03-09 - 19:16
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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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack0slot2.osadl.org (updated Mon Mar 09, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
310323821690,1sleep50-21swapper/508:44:335
33307412980,1sleep73330742-21grep10:24:287
34954182950,1sleep73495417-21rm11:30:577
33652772940,0sleep50-21swapper/510:39:255
2900905996764,2cyclictest3154899-21kworker/u16:3+events_unbound09:59:256
290041125747,7sleep40-21swapper/407:01:124
290041125747,7sleep40-21swapper/407:01:124
290048625544,8sleep50-21swapper/507:02:185
290048625544,8sleep50-21swapper/507:02:185
2900905995250,2cyclictest3328241-21kworker/u16:2+flush-8:010:24:406
2900905995149,2cyclictest3124478-21kworker/u16:1+flush-8:010:04:266
290047825141,7sleep60-21swapper/607:02:116
290047825141,7sleep60-21swapper/607:02:116
2900905995048,2cyclictest3154899-21kworker/u16:3+events_unbound09:34:456
2900900995048,2cyclictest3379763-21kworker/u16:3+events_unbound11:24:415
2900905994947,2cyclictest3146253-21kworker/u16:0+flush-8:009:14:406
2900900994846,2cyclictest2977843-21kworker/u16:2+flush-8:008:54:255
2900905994745,2cyclictest3154899-21kworker/u16:3+events_unbound09:09:356
2900905994644,2cyclictest3483502-21kworker/u16:4+events_unbound11:54:276
2900905994644,2cyclictest3424614-21kworker/u16:2+flush-8:011:09:256
2900905994644,2cyclictest3397953-21kworker/u16:1+events_unbound10:59:406
2900905994644,2cyclictest1465851-21kworker/u16:4+flush-8:007:49:366
2900905994543,2cyclictest3618334-21kworker/u16:3+events_unbound12:27:396
2900905994543,2cyclictest3424614-21kworker/u16:2+flush-8:011:19:476
2900905994543,2cyclictest3154899-21kworker/u16:3+events_unbound10:11:326
2900905994543,2cyclictest2873312-21kworker/u16:1+events_unbound07:44:406
2900910994443,0cyclictest0-21swapper/709:34:367
2900905994441,2cyclictest3328241-21kworker/u16:2+events_unbound10:29:116
2900900994442,2cyclictest3483502-21kworker/u16:4+events_unbound12:11:045
2900900994442,2cyclictest3154899-21kworker/u16:3+flush-8:009:09:365
2900900994341,2cyclictest3154899-21kworker/u16:3+events_unbound09:29:425
2900905994240,2cyclictest3497259-21kworker/u16:1+events_unbound12:02:246
2900905994240,2cyclictest2977843-21kworker/u16:2+flush-8:009:06:326
2900900994240,2cyclictest3379763-21kworker/u16:3+flush-8:011:23:045
2900905994139,2cyclictest3473241-21kworker/u16:0+events_unbound11:28:516
2900905994139,2cyclictest3424614-21kworker/u16:2+events_unbound11:45:496
2900905994139,2cyclictest3362212-21kworker/u16:2+events_unbound10:46:056
2900905994139,2cyclictest3124478-21kworker/u16:1+events_unbound09:56:176
2900905994139,2cyclictest2873312-21kworker/u16:1+flush-8:007:59:336
2900900994139,2cyclictest3154899-21kworker/u16:3+events_unbound10:02:565
29005352415,32sleep70-21swapper/707:03:007
29005352415,32sleep70-21swapper/707:03:007
2900910994037,2cyclictest3457655-21ntpq11:14:377
2900905994038,2cyclictest3483502-21kworker/u16:4+events_unbound11:41:476
2900900994038,2cyclictest3154899-21kworker/u16:3+events_unbound10:09:385
2900900994038,2cyclictest2977843-21kworker/u16:2+events_unbound07:59:415
2900905993937,2cyclictest3567512-21kworker/u16:0+events_unbound12:33:326
2900905993937,2cyclictest3497259-21kworker/u16:1+events_unbound12:09:036
2900905993937,2cyclictest3483502-21kworker/u16:4+events_unbound11:32:036
2900905993937,2cyclictest3124478-21kworker/u16:1+events_unbound09:31:406
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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