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2026-06-29 - 18:45
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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 20 highest latencies:
System rackeslot2.osadl.org (updated Mon Jun 29, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111678921970,3sleep30-21swapper/310:43:323
111678921970,3sleep30-21swapper/310:43:323
126334121050,2sleep30-21swapper/312:20:033
12095472740,2sleep01209542-21awk11:45:010
83396599351,20cyclictest1069841-21latency_hist10:10:010
9868232320,3sleep30-21swapper/309:15:023
833965992716,9cyclictest0-21swapper/009:49:530
833967992616,4cyclictest0-21swapper/209:24:522
833966992620,2cyclictest191rcu_preempt10:50:011
833965992621,4cyclictest738-21gdbus07:40:010
833965992610,10cyclictest0-21swapper/010:24:530
83396599259,10cyclictest0-21swapper/011:24:510
83396599259,10cyclictest0-21swapper/011:24:510
833965992520,4cyclictest1255098-21sed12:15:020
833965992519,5cyclictest986541-21grep09:15:020
833965992511,9cyclictest0-21swapper/012:20:030
83396599251,12cyclictest1260762-21dump-pmu-power12:20:000
83396599250,1cyclictest1191795-21ssh11:34:530
83396599249,10cyclictest0-21swapper/011:05:000
83396599242,1cyclictest1025969-21pluginstate09:40:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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