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2026-01-11 - 20:00
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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 Sun Jan 11, 2026 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
255059225847,7sleep40-21swapper/407:04:014
255076825320,29sleep70-21swapper/707:06:297
255086924635,8sleep50-21swapper/507:07:555
2551163994543,2cyclictest2531803-21kworker/u16:4+flush-8:007:58:005
2551163994240,2cyclictest2958656-21kworker/u16:2+events_unbound10:36:305
2551163994139,2cyclictest3217289-21kworker/u16:1+events_unbound12:16:235
2551163994139,2cyclictest3207043-21kworker/u16:0+events_unbound12:02:375
2551163994139,2cyclictest3207043-21kworker/u16:0+events_unbound12:02:375
2551163994139,2cyclictest2936485-21kworker/u16:0+events_unbound11:17:595
2551173994038,1cyclictest2788084-21diskmemload11:34:467
2551163994038,2cyclictest3207043-21kworker/u16:0+events_unbound12:31:135
2551163994038,2cyclictest3207043-21kworker/u16:0+events_unbound12:11:385
2551163994038,2cyclictest3182640-21kworker/u16:2+events_unbound11:57:515
2551163994038,2cyclictest2810309-21kworker/u16:1+events_unbound10:22:315
2551163994038,2cyclictest2810309-21kworker/u16:1+events_unbound10:06:305
2551163994038,2cyclictest2810309-21kworker/u16:1+events_unbound09:32:105
2551163994037,2cyclictest2810309-21kworker/u16:1+events_unbound09:25:145
2551163993937,2cyclictest3182640-21kworker/u16:2+events_unbound11:50:305
2551163993937,2cyclictest3169740-21kworker/u16:1+events_unbound11:46:235
2551163993937,2cyclictest2958656-21kworker/u16:2+events_unbound10:17:465
2551163993937,2cyclictest2936485-21kworker/u16:0+events_unbound11:30:475
2551163993937,2cyclictest2936485-21kworker/u16:0+events_unbound11:27:185
2551163993937,2cyclictest2810309-21kworker/u16:1+events_unbound10:00:305
2551163993937,2cyclictest2739908-21kworker/u16:2+flush-8:009:50:545
255117399380,36cyclictest3096421-21taskset11:12:417
2551163993836,2cyclictest2936485-21kworker/u16:0+events_unbound10:25:415
2551163993836,2cyclictest2876166-21kworker/u16:4+events_unbound10:11:075
2551163993836,2cyclictest2748294-21kworker/u16:3+flush-8:009:17:075
2551163993836,2cyclictest2748294-21kworker/u16:3+flush-8:009:17:075
2551163993836,2cyclictest2739908-21kworker/u16:2+flush-8:009:22:345
2551163993836,2cyclictest2739908-21kworker/u16:2+events_unbound09:40:595
2551163993835,2cyclictest2615069-21kworker/u16:2+events_unbound08:28:025
2551163993835,2cyclictest2615069-21kworker/u16:2+events_unbound08:28:025
2551168993735,2cyclictest2936485-21kworker/u16:0+events_unbound10:15:456
2551163993735,2cyclictest3207043-21kworker/u16:0+events_unbound12:04:145
2551163993735,2cyclictest3182640-21kworker/u16:2+events_unbound12:24:055
2551163993735,2cyclictest3057203-21kworker/u16:3+events_unbound11:07:145
2551163993735,2cyclictest2936485-21kworker/u16:0+flush-8:010:42:265
2551163993735,2cyclictest2936485-21kworker/u16:0+flush-8:010:42:265
2551163993735,2cyclictest2936485-21kworker/u16:0+events_unbound10:30:015
2551163993735,2cyclictest2876166-21kworker/u16:4+events_unbound11:37:385
2551163993735,2cyclictest2876166-21kworker/u16:4+events_unbound09:44:075
2551173993635,0cyclictest0-21swapper/711:58:587
2551173993635,0cyclictest0-21swapper/711:58:587
2551163993634,2cyclictest3217289-21kworker/u16:1+events_unbound12:35:015
2551163993634,2cyclictest2936485-21kworker/u16:0+events_unbound10:47:055
2551163993634,2cyclictest2876166-21kworker/u16:4+events_unbound11:20:385
2551163993634,2cyclictest2876166-21kworker/u16:4+events_unbound11:20:385
2551163993634,2cyclictest2876166-21kworker/u16:4+events_unbound10:57:145
2551173993534,0cyclictest0-21swapper/712:30:147
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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