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2026-06-17 - 13:36
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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 Wed Jun 17, 2026 00:46:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
210201399323321,1cyclictest2184173-21kworker/5:100:18:035
210201399323321,1cyclictest2184173-21kworker/5:100:18:035
210201399321319,1cyclictest0-21swapper/522:30:035
210201399320319,1cyclictest2184173-21kworker/5:122:02:025
210201399320318,2cyclictest2184173-21kworker/5:123:13:025
210201399320318,1cyclictest2184173-21kworker/5:100:06:025
210201399320315,1cyclictest0-21swapper/521:27:025
210201399319318,1cyclictest0-21swapper/523:32:025
210201399319317,1cyclictest2184173-21kworker/5:121:42:025
210201399319317,1cyclictest2184173-21kworker/5:100:28:025
210201399319317,1cyclictest0-21swapper/523:28:025
210201399318317,1cyclictest2184173-21kworker/5:123:47:035
210201399318317,1cyclictest0-21swapper/523:57:025
210201399318317,1cyclictest0-21swapper/523:15:035
210201399318317,1cyclictest0-21swapper/520:06:015
210201399317316,1cyclictest2184173-21kworker/5:123:50:035
210201399317316,1cyclictest2184173-21kworker/5:123:37:025
210201399317316,1cyclictest2184173-21kworker/5:122:24:025
210201399317316,1cyclictest2184173-21kworker/5:100:35:025
210201399317316,1cyclictest2184173-21kworker/5:100:22:035
210201399317316,1cyclictest0-21swapper/500:10:035
210201399317315,1cyclictest2111842-21kworker/5:321:12:025
210201399317315,1cyclictest0-21swapper/522:50:035
210201399317315,1cyclictest0-21swapper/522:50:025
210201399316315,1cyclictest2184173-21kworker/5:122:46:025
210201399316315,1cyclictest2184173-21kworker/5:122:17:035
210201399316315,1cyclictest0-21swapper/522:39:025
210201399315314,1cyclictest2184173-21kworker/5:122:55:025
210201399315314,1cyclictest2184173-21kworker/5:122:05:025
210201399315314,1cyclictest2175012-21kworker/5:021:17:035
210201399315313,1cyclictest2184173-21kworker/5:122:13:025
210201399315313,1cyclictest0-21swapper/523:41:025
210201399315313,1cyclictest0-21swapper/522:28:025
210201399315312,2cyclictest2184173-21kworker/5:122:42:025
210201399314313,1cyclictest0-21swapper/523:22:035
210201399313312,1cyclictest0-21swapper/521:23:035
210201399313311,1cyclictest0-21swapper/523:06:025
210201399313311,1cyclictest0-21swapper/521:46:025
210201399312311,1cyclictest3572606-21kworker/5:119:10:025
210201399312311,1cyclictest2111842-21kworker/5:320:11:025
210201399312310,1cyclictest2111842-21kworker/5:320:55:025
210201399312310,1cyclictest2111842-21kworker/5:320:35:035
210201399311310,1cyclictest0-21swapper/519:45:015
210201399311309,1cyclictest3572606-21kworker/5:119:19:025
210201399311309,1cyclictest2111842-21kworker/5:321:02:025
210201399311308,2cyclictest2111842-21kworker/5:320:21:025
210201399310309,1cyclictest0-21swapper/521:06:025
210201399310309,1cyclictest0-21swapper/520:47:025
210201399310308,1cyclictest2111842-21kworker/5:320:27:035
210201399309307,1cyclictest2111842-21kworker/5:320:02:025
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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