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2026-05-26 - 18:34
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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 Tue May 26, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24825821000,1sleep7248256-21ssh11:29:197
1622812990,0sleep60-21swapper/610:53:046
2372892970,1sleep60-21swapper/611:26:306
3855699995856,2cyclictest298727-21kworker/u16:2+events_unbound11:57:455
385512025242,7sleep50-21swapper/507:03:225
385533324939,7sleep40-21swapper/407:06:264
3855701994644,2cyclictest4173334-21kworker/u16:3+events_unbound10:18:566
3855699994543,2cyclictest3870171-21kworker/u16:1+flush-8:008:37:375
3855699994139,2cyclictest4125761-21kworker/u16:0+events_unbound09:43:405
3855699994139,2cyclictest4125761-21kworker/u16:0+events_unbound09:43:405
3855699994139,2cyclictest3870171-21kworker/u16:1+events_unbound07:22:365
3855699994038,2cyclictest3801129-21kworker/u16:0+flush-8:007:07:395
3855699994038,2cyclictest323947-21kworker/u16:0+events_unbound12:06:335
3855699994037,2cyclictest323947-21kworker/u16:0+events_unbound12:31:325
38547602403,31sleep70-21swapper/707:02:527
3855699993937,2cyclictest4022981-21kworker/u16:2+events_unbound09:49:125
3855699993937,2cyclictest18792-21kworker/u16:1+events_unbound10:11:565
3855699993836,2cyclictest4125761-21kworker/u16:0+flush-8:009:27:045
3855699993836,2cyclictest223004-21kworker/u16:0+events_unbound11:20:495
3855699993735,2cyclictest4173334-21kworker/u16:3+events_unbound10:39:005
3855699993735,2cyclictest4173334-21kworker/u16:3+events_unbound09:39:165
3855699993735,2cyclictest4022981-21kworker/u16:2+events_unbound09:35:215
3855699993735,2cyclictest236575-21kworker/u16:1+events_unbound12:10:005
3855699993734,2cyclictest323947-21kworker/u16:0+events_unbound12:19:465
3855699993734,2cyclictest262477-21kworker/u16:0+flush-8:011:42:245
3855696993735,2cyclictest55006-21kworker/u16:2+events_unbound10:42:294
3855699993634,2cyclictest91683-21kworker/u16:0+events_unbound10:31:215
3855699993634,2cyclictest4051962-21kworker/u16:3+events_unbound09:27:175
3855699993634,2cyclictest4051962-21kworker/u16:3+events_unbound09:18:295
3855699993634,2cyclictest392779-21kworker/u16:3+events_unbound12:33:295
3855699993634,2cyclictest3801129-21kworker/u16:0+events_unbound09:08:215
3855699993634,2cyclictest201213-21kworker/u16:4+events_unbound11:24:535
3855699993634,2cyclictest186609-21kworker/u16:0+events_unbound11:03:285
3855699993634,2cyclictest186609-21kworker/u16:0+events_unbound11:03:285
3855699993634,2cyclictest137786-21kworker/u16:4+events_unbound10:54:525
3855699993633,2cyclictest55006-21kworker/u16:2+flush-8:010:42:245
385570599350,33cyclictest635-21systemd-journal10:17:097
3855699993533,2cyclictest64709-21kworker/u16:4+events_unbound10:14:445
3855699993533,2cyclictest55006-21kworker/u16:2+events_unbound10:24:485
3855699993533,2cyclictest55006-21kworker/u16:2+events_unbound10:24:485
3855699993533,2cyclictest55006-21kworker/u16:2+events_unbound10:20:445
3855699993533,2cyclictest4173334-21kworker/u16:3+events_unbound10:04:055
3855699993533,2cyclictest4125761-21kworker/u16:0+events_unbound09:52:495
3855699993533,2cyclictest4051962-21kworker/u16:3+events_unbound09:15:375
3855699993533,2cyclictest236575-21kworker/u16:1+events_unbound11:54:165
3855699993533,2cyclictest201213-21kworker/u16:4+events_unbound11:34:405
3855699993533,2cyclictest166350-21kworker/u16:2+events_unbound11:28:405
3855699993533,2cyclictest137786-21kworker/u16:4+events_unbound10:48:175
3855701993433,1cyclictest347700-21kworker/u16:2+events_unbound12:24:026
3855699993432,2cyclictest262477-21kworker/u16:0+events_unbound11:39:335
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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