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2026-03-20 - 23:24
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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 rackeslot3.osadl.org (updated Fri Mar 20, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3099085997244,27cyclictest3107216-21kworker/1:007:40:141
3099085997139,31cyclictest3104184-1kworker/1:0H11:03:061
3099085997038,30cyclictest3178522-21kworker/1:310:00:171
3099085996938,29cyclictest3138323-21kworker/1:109:15:121
3099085996937,30cyclictest3104184-1kworker/1:0H11:20:151
309908599691,2cyclictest0-21swapper/111:55:131
3099085996840,26cyclictest3122074-21kworker/1:308:25:131
3099085996837,30cyclictest3126664-21kworker/1:208:40:011
3099085996739,27cyclictest3135783-21kworker/1:009:10:001
3099085996737,28cyclictest3116508-21kworker/1:108:05:131
309908599671,64cyclictest0-21swapper/109:44:051
309908599670,65cyclictest0-21swapper/110:28:401
3099085996637,28cyclictest3178522-21kworker/1:310:10:141
309908599661,2cyclictest0-21swapper/108:30:131
309908599660,64cyclictest0-21swapper/110:42:421
309908599650,2cyclictest3129122-21cron08:45:001
3099085996462,1cyclictest0-21swapper/111:15:381
3099085996442,21cyclictest3293351-21kworker/1:012:30:141
3099085996435,26cyclictest3104184-1kworker/1:0H07:50:121
309908599640,61cyclictest3119617-21turbostat08:15:001
3099085996361,1cyclictest0-21swapper/112:15:421
3099085996345,17cyclictest3107216-21kworker/1:007:55:141
3099085996342,20cyclictest3207726-21kworker/1:210:50:131
3099085996338,15cyclictest3126664-21kworker/1:208:50:001
3099085996334,26cyclictest3171792-21kworker/1:210:00:001
309908599620,2cyclictest0-21swapper/107:45:411
3099085996143,17cyclictest3149158-21kworker/1:309:30:141
3099085996143,16cyclictest3104184-1kworker/1:0H12:10:131
3099085996141,18cyclictest3114949-21kworker/1:208:00:121
3099085996140,19cyclictest3107216-21kworker/1:007:40:001
3099085996055,3cyclictest379-21systemd-journal08:49:251
3099085996044,15cyclictest3116508-21kworker/1:108:15:231
3099085995944,14cyclictest3157389-21kworker/1:009:50:011
3099085995943,15cyclictest982018-1kworker/1:2H07:16:411
3099085995943,15cyclictest3192144-21kworker/1:010:35:141
3099085995943,15cyclictest3122074-21kworker/1:308:20:161
3099085995940,17cyclictest3207726-21kworker/1:210:45:131
3099085995940,17cyclictest3104184-1kworker/1:0H12:30:001
3099085995939,19cyclictest3104184-1kworker/1:0H10:10:001
3099085995934,23cyclictest3104184-1kworker/1:0H07:30:251
3099085995843,14cyclictest3300299-21kworker/1:312:35:131
3099085995843,14cyclictest3250671-21kworker/1:111:39:091
3099085995842,15cyclictest3256485-21kworker/1:211:40:161
3099085995742,14cyclictest3138323-21kworker/1:109:14:271
3099085995742,14cyclictest3104184-1kworker/1:0H10:17:381
3099085995741,15cyclictest3153244-21kworker/1:109:35:421
3099085995741,15cyclictest3147381-21kworker/1:009:25:011
3099085995739,17cyclictest3273900-21kworker/1:012:00:181
3099085995641,14cyclictest3241980-21kworker/1:011:25:111
3099085995641,14cyclictest3220761-21kworker/1:110:58:421
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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