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2026-06-17 - 16:08
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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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackeslot3.osadl.org (updated Wed Jun 17, 2026 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1094350997140,29cyclictest1261708-21kworker/1:011:40:131
1094350996840,27cyclictest1233686-21kworker/1:211:15:001
1094350996839,28cyclictest1092778-21kworker/1:107:20:131
1094350996838,29cyclictest1092778-21kworker/1:107:10:171
1094350996836,31cyclictest1161358-21kworker/1:209:43:541
1094350996739,27cyclictest1127889-21kworker/1:009:00:141
1094350996650,15cyclictest1278608-21kworker/1:112:00:141
1094350996645,20cyclictest1119923-21kworker/1:208:35:331
1094350996544,20cyclictest1673808-1kworker/1:2H12:35:001
1094350996530,33cyclictest1673808-1kworker/1:2H11:29:111
1094350996461,2cyclictest0-21swapper/107:38:261
1094350996436,27cyclictest1104200-21kworker/1:007:55:001
1094350996436,27cyclictest1104200-21kworker/1:007:40:141
1094350996345,17cyclictest1092778-21kworker/1:107:25:141
1094350996338,23cyclictest1298460-21kworker/1:112:25:001
1094350996334,28cyclictest1092778-21kworker/1:107:15:011
1094350996333,28cyclictest1224567-21kworker/1:011:05:131
1094350996245,16cyclictest1111966-21kworker/1:108:30:061
109435099621,60cyclictest0-21swapper/112:16:221
1094350996159,1cyclictest0-21swapper/109:25:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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