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2026-03-14 - 04:18
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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 Sat Mar 14, 2026 00:46:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
118559399332331,1cyclictest0-21swapper/223:42:022
118559399326325,1cyclictest0-21swapper/221:11:022
118559399323322,1cyclictest0-21swapper/223:07:022
118559399322321,1cyclictest0-21swapper/222:55:022
118559399322320,1cyclictest0-21swapper/222:48:022
118559399322320,1cyclictest0-21swapper/222:21:022
118559399322319,2cyclictest1437999-21kworker/2:219:15:022
118559399321320,1cyclictest0-21swapper/223:17:022
118559399321320,1cyclictest0-21swapper/223:17:022
118559399321320,1cyclictest0-21swapper/221:40:022
118559399321319,1cyclictest0-21swapper/200:25:022
118559399320319,1cyclictest0-21swapper/223:01:022
118559399319317,1cyclictest0-21swapper/200:00:022
118559399318317,1cyclictest0-21swapper/200:15:022
118559399318316,1cyclictest1326394-21kworker/2:023:56:022
118559399318316,1cyclictest0-21swapper/222:42:022
118557499318317,1cyclictest0-21swapper/023:51:020
118559399317316,1cyclictest1326394-21kworker/2:023:45:022
118559399317314,2cyclictest1447589-21kworker/2:200:12:022
118559399316315,1cyclictest1447589-21kworker/2:200:24:022
118559399316315,1cyclictest1326394-21kworker/2:023:53:022
118559399316315,1cyclictest1326394-21kworker/2:022:15:022
118559399316315,1cyclictest0-21swapper/221:18:022
118559399315314,1cyclictest1437999-21kworker/2:221:50:022
118559399315314,1cyclictest1437999-21kworker/2:221:50:022
118559399315314,1cyclictest1437999-21kworker/2:219:35:022
118559399315313,2cyclictest1437999-21kworker/2:219:54:022
118559399315313,1cyclictest1326394-21kworker/2:023:34:022
118559399314313,1cyclictest1447589-21kworker/2:200:31:022
118559399314313,1cyclictest1437999-21kworker/2:220:05:022
118559399314313,1cyclictest0-21swapper/223:39:022
118559399314313,1cyclictest0-21swapper/223:24:022
118559399314313,1cyclictest0-21swapper/223:11:022
118559399314313,1cyclictest0-21swapper/222:50:022
118559399314313,1cyclictest0-21swapper/220:45:022
118559399314312,1cyclictest0-21swapper/222:02:022
118559399314312,1cyclictest0-21swapper/220:50:022
118559399314312,1cyclictest0-21swapper/220:35:022
118559399313312,1cyclictest1437999-21kworker/2:221:35:032
118559399313312,1cyclictest1326394-21kworker/2:022:32:022
118559399313312,1cyclictest0-21swapper/222:37:022
118559399313312,1cyclictest0-21swapper/221:32:022
118559399313312,1cyclictest0-21swapper/221:26:022
118559399313312,1cyclictest0-21swapper/220:30:022
118559399313312,1cyclictest0-21swapper/220:25:022
118559399313311,1cyclictest1447589-21kworker/2:200:37:022
118559399312311,1cyclictest0-21swapper/220:19:022
118559399312311,1cyclictest0-21swapper/220:11:022
118559399312311,1cyclictest0-21swapper/219:28:022
118559399312310,1cyclictest1437999-21kworker/2:221:23:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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