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2025-12-24 - 03:35
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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 100 highest latencies:
System rackcslot6.osadl.org (updated Wed Dec 24, 2025 00:46:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25702299382380,1cyclictest4157987-21kworker/4:123:21:024
25702299382380,1cyclictest4157987-21kworker/4:122:43:024
257040993811,379cyclictest0-21swapper/719:36:027
257040993810,380cyclictest0-21swapper/721:07:027
257040993810,380cyclictest0-21swapper/719:48:027
257040993810,380cyclictest0-21swapper/719:17:027
25702299381379,1cyclictest4157987-21kworker/4:121:57:024
25702299381379,1cyclictest4157987-21kworker/4:120:25:024
25702299381379,1cyclictest4157987-21kworker/4:119:55:024
257022993811,379cyclictest0-21swapper/422:12:024
257022993810,380cyclictest0-21swapper/423:57:024
257040993800,379cyclictest0-21swapper/720:56:027
257040993800,379cyclictest0-21swapper/720:21:027
257040993800,1cyclictest0-21swapper/721:03:027
257040993800,1cyclictest0-21swapper/719:27:027
25702299380378,1cyclictest547428-21kworker/4:000:15:024
25702299380378,1cyclictest4157987-21kworker/4:123:29:024
25702299380378,1cyclictest4157987-21kworker/4:121:39:024
25702299380378,1cyclictest4157987-21kworker/4:120:55:024
257022993800,379cyclictest0-21swapper/423:11:024
257022993800,379cyclictest0-21swapper/421:18:024
257022993800,379cyclictest0-21swapper/400:11:024
25702299379378,1cyclictest0-21swapper/420:13:024
25702299377376,1cyclictest4157987-21kworker/4:120:01:024
25702299377374,1cyclictest4157987-21kworker/4:122:01:024
25702299376375,1cyclictest0-21swapper/422:30:024
25702299376374,1cyclictest839-21nscd23:06:024
25702299376374,1cyclictest4157987-21kworker/4:122:20:024
25702299376374,1cyclictest0-21swapper/422:06:024
25702299375374,1cyclictest0-21swapper/419:47:024
25702299375373,1cyclictest4157987-21kworker/4:120:49:024
25702299375373,1cyclictest4157987-21kworker/4:120:49:024
25702299374372,1cyclictest4157987-21kworker/4:123:42:024
25702299374372,1cyclictest4157987-21kworker/4:123:42:024
25702299374372,1cyclictest4157987-21kworker/4:119:13:024
25702899371370,1cyclictest311987-21kworker/5:220:40:035
25702299371369,1cyclictest547428-21kworker/4:000:22:024
25702299371369,1cyclictest4157987-21kworker/4:120:35:024
25702299370369,1cyclictest4157987-21kworker/4:123:30:024
25702299370369,1cyclictest4157987-21kworker/4:119:15:024
25702299370368,1cyclictest547428-21kworker/4:000:39:024
25702299370368,1cyclictest547428-21kworker/4:000:31:024
25702299369367,2cyclictest4157987-21kworker/4:121:22:024
25702299369367,1cyclictest4157987-21kworker/4:122:38:024
25702299368367,1cyclictest4157987-21kworker/4:123:02:024
25702299368366,1cyclictest4157987-21kworker/4:121:41:024
25702299367366,1cyclictest4157987-21kworker/4:122:50:024
25702299367365,1cyclictest4157987-21kworker/4:121:01:024
25702299367365,1cyclictest4157987-21kworker/4:119:42:024
25702299366365,1cyclictest4157987-21kworker/4:120:05:024
25702299366364,1cyclictest4157987-21kworker/4:119:53:024
25702299366364,1cyclictest4157987-21kworker/4:119:37:024
25702299366364,1cyclictest4157987-21kworker/4:119:31:034
25702299364362,1cyclictest4157987-21kworker/4:120:44:024
25702299364362,1cyclictest4157987-21kworker/4:120:32:024
25702299363362,1cyclictest4157987-21kworker/4:120:16:024
25702299363361,1cyclictest4157987-21kworker/4:120:52:024
25702299362361,1cyclictest4157987-21kworker/4:119:24:024
25702299362361,1cyclictest4157987-21kworker/4:119:24:024
25701499352351,1cyclictest0-21swapper/322:16:023
25701499348346,1cyclictest308742-21kworker/3:021:51:023
25701499348346,1cyclictest0-21swapper/300:07:023
25701499347346,1cyclictest446942-21kworker/3:000:27:023
25701499346344,1cyclictest0-21swapper/322:37:023
25701499346343,2cyclictest341747-21sh21:19:023
25701499345344,1cyclictest308742-21kworker/3:021:11:023
25701499345344,1cyclictest0-21swapper/321:33:023
25701499345343,1cyclictest0-21swapper/322:45:023
25701499345343,1cyclictest0-21swapper/321:37:023
25701499345343,1cyclictest0-21swapper/319:35:023
25701499344343,1cyclictest0-21swapper/323:27:023
25701499344343,1cyclictest0-21swapper/300:19:023
25701499344342,1cyclictest544656-21ssh00:00:023
25701499344342,1cyclictest0-21swapper/323:57:023
25701499344342,1cyclictest0-21swapper/322:25:023
25701499344342,1cyclictest0-21swapper/322:03:023
25701499344342,1cyclictest0-21swapper/321:23:023
25701499343342,1cyclictest0-21swapper/323:35:023
25701499343342,1cyclictest0-21swapper/323:11:023
25701499343341,1cyclictest0-21swapper/323:51:023
25701499343341,1cyclictest0-21swapper/322:57:023
25701499343341,1cyclictest0-21swapper/320:15:023
25701499343341,1cyclictest0-21swapper/300:11:023
25701499342341,1cyclictest0-21swapper/322:23:023
25701499342341,1cyclictest0-21swapper/321:45:023
25701499342340,1cyclictest260219-21kworker/3:320:23:023
25701499342340,1cyclictest0-21swapper/323:21:023
25701499342340,1cyclictest0-21swapper/323:07:023
25701499342340,1cyclictest0-21swapper/321:57:023
25701499342340,1cyclictest0-21swapper/320:25:023
25701499341339,1cyclictest0-21swapper/323:17:023
25701499341339,1cyclictest0-21swapper/320:45:023
25701499341339,1cyclictest0-21swapper/320:45:023
25701499341339,1cyclictest0-21swapper/320:03:023
25701499341339,1cyclictest0-21swapper/319:55:023
25701499341339,1cyclictest0-21swapper/319:25:023
25701499340338,1cyclictest446942-21kworker/3:023:33:023
25701499340338,1cyclictest0-21swapper/320:55:023
25701499340338,1cyclictest0-21swapper/320:13:023
25701499340338,1cyclictest0-21swapper/319:49:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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