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2026-08-19 - 18:32
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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 Aug 19, 2026 12:46:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
407132599382380,1cyclictest1343498-21kworker/6:012:19:026
4071325993810,380cyclictest0-21swapper/610:02:026
4071325993810,380cyclictest0-21swapper/609:03:026
4071325993810,380cyclictest0-21swapper/608:32:026
4071325993810,1cyclictest0-21swapper/611:46:016
4071325993810,1cyclictest0-21swapper/610:30:026
407131099381380,1cyclictest4074230-21kworker/4:108:02:024
407131099381379,1cyclictest4074230-21kworker/4:107:22:024
4071325993800,379cyclictest0-21swapper/609:47:016
4071325993800,379cyclictest0-21swapper/609:16:026
4071325993800,1cyclictest0-21swapper/611:30:026
407131099380379,1cyclictest4074230-21kworker/4:108:08:024
407132599379377,1cyclictest1343498-21kworker/6:009:34:026
407132599379377,1cyclictest1343498-21kworker/6:009:20:026
407132599379377,1cyclictest0-21swapper/612:28:026
407132599379377,1cyclictest0-21swapper/607:27:026
407132599378377,1cyclictest0-21swapper/611:18:026
407132599378376,1cyclictest1343498-21kworker/6:012:35:016
407132599378376,1cyclictest1343498-21kworker/6:009:40:026
407132599378376,1cyclictest1343498-21kworker/6:009:29:026
407132599377375,1cyclictest1343498-21kworker/6:007:20:026
407132599377375,1cyclictest0-21swapper/610:52:026
407132599376375,1cyclictest1343498-21kworker/6:009:35:026
407132599376375,1cyclictest1343498-21kworker/6:009:05:026
407132599376375,1cyclictest0-21swapper/610:14:026
407132599375374,1cyclictest1343498-21kworker/6:010:05:026
407132599375374,1cyclictest1343498-21kworker/6:010:05:026
407132599375374,1cyclictest0-21swapper/611:54:016
407132599375373,1cyclictest1343498-21kworker/6:010:28:016
407132599374373,1cyclictest1343498-21kworker/6:011:05:026
407132599374373,1cyclictest1343498-21kworker/6:007:16:026
407132599374372,1cyclictest1343498-21kworker/6:011:28:026
407132599374372,1cyclictest1343498-21kworker/6:010:16:016
407132599374372,1cyclictest1343498-21kworker/6:008:16:026
407132599374372,1cyclictest1343498-21kworker/6:007:58:026
407132599373372,1cyclictest1343498-21kworker/6:012:02:026
407132599373372,1cyclictest1343498-21kworker/6:011:40:026
407132599373372,1cyclictest1343498-21kworker/6:011:38:026
407132599373372,1cyclictest1343498-21kworker/6:011:38:026
407132599373372,1cyclictest1343498-21kworker/6:010:42:026
407132599373372,1cyclictest1343498-21kworker/6:009:12:026
407132599373371,1cyclictest1343498-21kworker/6:012:32:016
407132599373371,1cyclictest1343498-21kworker/6:008:44:026
407132599373371,1cyclictest1343498-21kworker/6:007:36:026
407132599372371,1cyclictest1343498-21kworker/6:010:56:026
407132599372370,1cyclictest1343498-21kworker/6:012:22:026
407132599372370,1cyclictest1343498-21kworker/6:011:04:026
407132599372370,1cyclictest1343498-21kworker/6:008:53:026
407130299355353,1cyclictest0-21swapper/308:03:023
407130299354352,1cyclictest4120239-21kworker/3:008:43:023
407130299354352,1cyclictest25799-21kworker/3:112:03:023
407130299354352,1cyclictest25799-21kworker/3:111:37:023
407130299354352,1cyclictest25799-21kworker/3:111:37:023
407130299354352,1cyclictest0-21swapper/310:11:023
407130299353352,1cyclictest0-21swapper/311:47:013
407130299353351,1cyclictest4120239-21kworker/3:008:33:023
407130299352351,1cyclictest4120239-21kworker/3:009:11:023
407130299351349,1cyclictest149384-21kworker/3:207:31:013
407130299346345,1cyclictest4144322-21kworker/3:109:46:013
407133099342340,1cyclictest4108218-21kworker/7:008:15:027
407130299340338,1cyclictest149384-21kworker/3:207:18:023
407130299339338,1cyclictest4144322-21kworker/3:110:20:023
407130299338337,1cyclictest0-21swapper/307:55:023
407130299338336,1cyclictest4120239-21kworker/3:009:01:023
407130299338336,1cyclictest0-21swapper/309:06:023
407130299338336,1cyclictest0-21swapper/307:53:023
407130299337336,1cyclictest4180416-21kworker/3:210:38:013
407130299337335,1cyclictest0-21swapper/310:15:013
407130299336335,1cyclictest4180416-21kworker/3:210:50:023
407130299336335,1cyclictest25799-21kworker/3:111:20:023
407130299336334,1cyclictest0-21swapper/307:35:013
407130299335334,1cyclictest149384-21kworker/3:208:10:023
407130299335334,1cyclictest149384-21kworker/3:207:42:013
407130299335334,1cyclictest0-21swapper/310:58:023
407130299335334,1cyclictest0-21swapper/309:33:023
407130299335333,1cyclictest4180416-21kworker/3:210:43:023
407130299334333,1cyclictest0-21swapper/310:25:023
407130299334333,1cyclictest0-21swapper/308:18:023
407130299334333,1cyclictest0-21swapper/307:14:023
407130299334332,1cyclictest4144322-21kworker/3:109:42:013
407130299334332,1cyclictest4144322-21kworker/3:109:36:023
407130299333332,1cyclictest4180416-21kworker/3:210:49:023
407130299333332,1cyclictest4144322-21kworker/3:109:15:023
407130299333332,1cyclictest0-21swapper/312:08:023
407130299333332,1cyclictest0-21swapper/311:56:023
407130299333332,1cyclictest0-21swapper/311:44:023
407130299333332,1cyclictest0-21swapper/307:21:023
407130299333331,1cyclictest0-21swapper/310:07:023
407130299333331,1cyclictest0-21swapper/310:07:023
407130299332331,1cyclictest4120239-21kworker/3:008:38:023
407130299332331,1cyclictest4120239-21kworker/3:008:38:023
407130299332331,1cyclictest25799-21kworker/3:112:14:023
407130299332331,1cyclictest149384-21kworker/3:208:06:023
407130299332331,1cyclictest0-21swapper/309:27:023
407130299332331,1cyclictest0-21swapper/308:52:023
407130299332331,1cyclictest0-21swapper/307:48:023
407130299332330,1cyclictest25799-21kworker/3:112:34:023
407130299332330,1cyclictest25799-21kworker/3:111:17:023
407130299332330,1cyclictest0-21swapper/312:17:023
407130299331330,1cyclictest25799-21kworker/3:111:53:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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