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2026-05-10 - 02:56
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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 May 09, 2026 12:46:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74761299381379,1cyclictest721179-21kworker/2:111:38:022
74763199376373,1cyclictest868784-21kworker/4:112:27:024
74763899353351,1cyclictest0-21swapper/507:23:025
74763899337335,1cyclictest2221636-21kworker/5:007:15:025
74763899335334,1cyclictest808610-21kworker/5:210:25:025
74763899333331,1cyclictest0-21swapper/507:25:025
74763899331330,1cyclictest0-21swapper/510:18:025
74763899331330,1cyclictest0-21swapper/509:05:025
74763899331329,1cyclictest808610-21kworker/5:209:00:025
74763899330329,1cyclictest898866-21kworker/5:012:11:025
74763899330329,1cyclictest808610-21kworker/5:209:13:025
74763899330329,1cyclictest2221636-21kworker/5:007:53:025
74763899330329,1cyclictest0-21swapper/511:26:025
74763899330329,1cyclictest0-21swapper/508:55:025
74763899330328,1cyclictest2221636-21kworker/5:008:25:025
74763899329328,1cyclictest808610-21kworker/5:209:15:025
74763899329328,1cyclictest2221636-21kworker/5:008:45:025
74763899329328,1cyclictest0-21swapper/512:00:025
74763899329328,1cyclictest0-21swapper/508:04:025
74763899329327,1cyclictest808610-21kworker/5:209:44:025
74763899328327,1cyclictest898866-21kworker/5:012:19:025
74763899328327,1cyclictest898866-21kworker/5:011:45:025
74763899328327,1cyclictest808610-21kworker/5:211:15:025
74763899328327,1cyclictest2221636-21kworker/5:008:22:035
74763899328327,1cyclictest2221636-21kworker/5:008:22:025
74763899328327,1cyclictest0-21swapper/510:55:025
74760699328326,1cyclictest2213584-21kworker/1:307:23:021
74763899327326,1cyclictest898866-21kworker/5:011:51:025
74763899327326,1cyclictest808610-21kworker/5:210:13:025
74763899327326,1cyclictest2221636-21kworker/5:007:33:025
74763899327326,1cyclictest0-21swapper/512:20:025
74763899327326,1cyclictest0-21swapper/511:12:025
74763899327326,1cyclictest0-21swapper/509:37:025
74763899327326,1cyclictest0-21swapper/509:20:025
74763899327326,1cyclictest0-21swapper/508:10:025
74763899327326,1cyclictest0-21swapper/507:59:025
74763899327326,1cyclictest0-21swapper/507:41:025
74763899327325,1cyclictest808610-21kworker/5:210:07:025
74763899327325,1cyclictest2221636-21kworker/5:007:46:025
74763899327325,1cyclictest0-21swapper/512:26:025
74763899326325,1cyclictest808610-21kworker/5:210:01:025
74763899326325,1cyclictest808610-21kworker/5:209:29:025
74763899326325,1cyclictest2221636-21kworker/5:008:16:025
74763899326325,1cyclictest0-21swapper/512:33:025
74763899326325,1cyclictest0-21swapper/511:03:025
74763899326324,1cyclictest808610-21kworker/5:210:31:025
74763899325324,1cyclictest898866-21kworker/5:011:37:025
74763899325324,1cyclictest808610-21kworker/5:211:23:025
74763899325324,1cyclictest808610-21kworker/5:211:23:025
74763899325324,1cyclictest2221636-21kworker/5:008:37:025
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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