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2026-06-18 - 12:17
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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 50 highest latencies:
System rackcslot6.osadl.org (updated Thu Jun 18, 2026 00:46:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
245872199383381,1cyclictest2483574-21kworker/7:221:09:027
245868699382380,1cyclictest2468528-21kworker/2:120:07:022
245868699381379,1cyclictest2468528-21kworker/2:119:33:022
245868699380378,1cyclictest2646540-21kworker/2:223:19:022
2458686993800,379cyclictest0-21swapper/220:01:022
2458686993800,1cyclictest0-21swapper/222:08:022
2458686993790,1cyclictest0-21swapper/221:27:022
245870899378377,1cyclictest2729115-21kworker/5:100:27:025
245870899378377,1cyclictest2729115-21kworker/5:100:27:025
245868699378377,1cyclictest0-21swapper/223:54:022
245868699378376,1cyclictest2736042-21kworker/2:100:26:022
245868699378376,1cyclictest2736042-21kworker/2:100:26:022
245868699378376,1cyclictest2646540-21kworker/2:223:40:022
245868699378376,1cyclictest2468528-21kworker/2:121:41:022
245868699378376,1cyclictest2468528-21kworker/2:121:41:022
245868699378376,1cyclictest0-21swapper/222:00:022
245868699378376,1cyclictest0-21swapper/200:35:012
245868699377375,1cyclictest2646540-21kworker/2:223:59:012
245868699377375,1cyclictest2468528-21kworker/2:119:53:022
245868699377375,1cyclictest0-21swapper/219:19:022
245868699376375,1cyclictest2736042-21kworker/2:100:08:022
245868699376375,1cyclictest0-21swapper/223:32:022
245872199375374,1cyclictest2483574-21kworker/7:220:33:027
245868699375373,1cyclictest2468528-21kworker/2:120:35:012
245868699374373,1cyclictest0-21swapper/221:30:022
245868699374372,1cyclictest0-21swapper/200:14:022
245867599374373,1cyclictest0-21swapper/120:33:021
245868699373372,1cyclictest0-21swapper/223:07:022
245868699373372,1cyclictest0-21swapper/221:38:012
245868699373372,1cyclictest0-21swapper/221:20:022
245868699373371,1cyclictest2468528-21kworker/2:120:19:022
245868699373371,1cyclictest0-21swapper/221:58:012
245868699373371,1cyclictest0-21swapper/200:24:022
245868699372371,1cyclictest2736042-21kworker/2:100:04:012
245868699372370,1cyclictest2468528-21kworker/2:120:50:022
245868699372370,1cyclictest0-21swapper/222:56:012
245868699372370,1cyclictest0-21swapper/220:12:022
245868699372370,1cyclictest0-21swapper/220:12:022
245868699372370,1cyclictest0-21swapper/200:33:022
245868699371369,1cyclictest2646540-21kworker/2:222:52:022
245868699371369,1cyclictest2468528-21kworker/2:121:48:022
245868699371369,1cyclictest2468528-21kworker/2:119:28:012
245868699371368,2cyclictest2646540-21kworker/2:223:00:012
245868699371368,2cyclictest2646540-21kworker/2:223:00:012
245868699370369,1cyclictest0-21swapper/219:10:022
245868699370368,1cyclictest2468528-21kworker/2:122:44:022
245868699368366,1cyclictest2468528-21kworker/2:120:40:022
245868699365363,1cyclictest2468528-21kworker/2:120:27:022
245868699365363,1cyclictest2468528-21kworker/2:120:22:022
245868699363362,1cyclictest2468528-21kworker/2:120:34:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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