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2026-01-07 - 10:35
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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 Jan 07, 2026 00:46:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
165688824630,4sleep442-21ksoftirqd/419:05:124
1659302993800,379cyclictest0-21swapper/423:11:024
165930299376374,1cyclictest1760330-21kworker/4:223:01:024
165930299376374,1cyclictest1760330-21kworker/4:223:01:024
165930299376374,1cyclictest0-21swapper/421:10:024
165930299374373,1cyclictest1952775-21kworker/4:019:15:024
165930299374372,1cyclictest0-21swapper/421:28:024
165930299373372,1cyclictest1760330-21kworker/4:222:53:024
165930299373371,1cyclictest0-21swapper/423:51:024
165930299372371,1cyclictest1760330-21kworker/4:221:46:024
165930299372371,1cyclictest0-21swapper/423:26:024
165930299372370,1cyclictest1760330-21kworker/4:223:30:024
165930299371370,1cyclictest1760330-21kworker/4:223:22:024
165930299371369,1cyclictest1974656-21kworker/4:100:25:024
165930299371369,1cyclictest1974656-21kworker/4:100:25:024
165930299370369,1cyclictest0-21swapper/423:40:024
165930299370368,1cyclictest0-21swapper/400:01:024
165930299369368,1cyclictest1760330-21kworker/4:222:37:024
165930299369368,1cyclictest1723302-21kworker/4:121:16:024
165930299369368,1cyclictest0-21swapper/421:36:024
165930299369368,1cyclictest0-21swapper/421:36:024
165930299369368,1cyclictest0-21swapper/400:37:024
165930299369368,1cyclictest0-21swapper/400:24:024
165930299368367,1cyclictest1760330-21kworker/4:221:44:024
165930299368367,1cyclictest0-21swapper/423:07:024
165930299368367,1cyclictest0-21swapper/422:49:024
165930299367366,1cyclictest1760330-21kworker/4:222:31:024
165930299367366,1cyclictest1760330-21kworker/4:221:50:024
165930299367366,1cyclictest1760330-21kworker/4:200:15:024
165930299367366,1cyclictest1760330-21kworker/4:200:07:024
165930299367366,1cyclictest0-21swapper/423:58:024
165930299367365,1cyclictest0-21swapper/421:58:024
165930299365364,1cyclictest1952775-21kworker/4:019:38:024
165930299365364,1cyclictest1690208-21kworker/4:220:40:024
165930299365364,1cyclictest0-21swapper/421:23:024
165930299365364,1cyclictest0-21swapper/400:13:024
165930299365363,1cyclictest0-21swapper/422:05:024
165930299364363,1cyclictest1974656-21kworker/4:100:33:024
165930299364363,1cyclictest1690208-21kworker/4:220:25:024
165930299364363,1cyclictest0-21swapper/423:46:024
165930299364363,1cyclictest0-21swapper/422:22:024
165930299364363,1cyclictest0-21swapper/421:30:024
165930299364363,1cyclictest0-21swapper/419:11:024
165930299364362,1cyclictest1952775-21kworker/4:019:25:024
165930299363362,1cyclictest1690208-21kworker/4:220:34:024
165930299363361,1cyclictest1952775-21kworker/4:019:32:024
165930299363361,1cyclictest1760330-21kworker/4:222:14:024
165930299363361,1cyclictest0-21swapper/420:18:024
165930299362361,1cyclictest1760330-21kworker/4:222:55:024
165930299361360,1cyclictest1952775-21kworker/4:019:55:024
165930299361360,1cyclictest1760330-21kworker/4:222:43:024
165930299361360,1cyclictest1760330-21kworker/4:222:02:024
165930299360359,1cyclictest1952775-21kworker/4:019:43:024
165930299360359,1cyclictest0-21swapper/420:46:024
165930299359358,1cyclictest1690208-21kworker/4:220:22:024
165930299359358,1cyclictest1690208-21kworker/4:220:08:024
165930299358356,1cyclictest0-21swapper/420:13:024
165930299358356,1cyclictest0-21swapper/420:13:024
165930299357356,1cyclictest1952775-21kworker/4:019:53:024
165930299357356,1cyclictest1690208-21kworker/4:220:38:024
165930299357356,1cyclictest1690208-21kworker/4:220:02:024
165930299356355,1cyclictest1952775-21kworker/4:019:22:024
165930299356355,1cyclictest0-21swapper/420:50:024
165930299355354,1cyclictest1723302-21kworker/4:120:56:024
165930299355353,1cyclictest0-21swapper/421:06:024
165928699313311,1cyclictest0-21swapper/222:41:022
165928699312309,2cyclictest1816715-21kworker/2:122:23:022
165928699310309,1cyclictest0-21swapper/221:55:022
165928699310309,1cyclictest0-21swapper/219:10:022
165928699308306,1cyclictest0-21swapper/221:31:022
165928699307306,1cyclictest1878969-21kworker/2:223:42:022
165928699306305,1cyclictest0-21swapper/223:35:022
165928699306304,1cyclictest0-21swapper/200:20:022
165928699305303,1cyclictest1816715-21kworker/2:122:54:022
165928699305303,1cyclictest0-21swapper/223:59:022
165928699305303,1cyclictest0-21swapper/223:51:022
165928699304302,1cyclictest0-21swapper/223:21:022
165928699304302,1cyclictest0-21swapper/222:32:022
165928699304302,1cyclictest0-21swapper/222:27:022
165928699303302,1cyclictest0-21swapper/222:08:022
165928699303302,1cyclictest0-21swapper/221:12:022
165928699303301,1cyclictest1720295-21kworker/2:221:26:022
165928699303301,1cyclictest0-21swapper/200:11:022
165928699302301,1cyclictest1720295-21kworker/2:221:15:022
165928699302301,1cyclictest0-21swapper/223:05:022
165928699302301,1cyclictest0-21swapper/222:38:022
165928699302301,1cyclictest0-21swapper/222:17:022
165928699302301,1cyclictest0-21swapper/222:11:022
165928699302300,1cyclictest1878969-21kworker/2:223:25:022
165928699302300,1cyclictest0-21swapper/221:37:022
165928699302300,1cyclictest0-21swapper/221:37:022
165928699301300,1cyclictest0-21swapper/223:12:022
165928699301300,1cyclictest0-21swapper/221:22:022
165928699301300,1cyclictest0-21swapper/220:43:022
165928699301300,1cyclictest0-21swapper/220:00:022
165928699301300,1cyclictest0-21swapper/219:30:032
165928699301300,1cyclictest0-21swapper/200:34:022
165928699301300,1cyclictest0-21swapper/200:02:022
165928699301299,1cyclictest1878969-21kworker/2:200:35:022
165928699301299,1cyclictest0-21swapper/223:49:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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