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2026-03-31 - 22:39
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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 Tue Mar 31, 2026 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
557036996359,2cyclictest0-21swapper/110:29:421
557036996246,15cyclictest613884-21kworker/1:209:48:161
557036996057,2cyclictest0-21swapper/109:32:451
557036996042,16cyclictest664767-21kworker/1:110:40:141
557036995944,14cyclictest706346-21kworker/1:011:30:151
557036995944,14cyclictest575949-21kworker/1:208:10:381
557036995944,14cyclictest566641-21kworker/1:107:45:141
557036995943,15cyclictest595711-21kworker/1:209:10:121
557036995943,15cyclictest590683-21kworker/1:009:00:191
557036995855,2cyclictest0-21swapper/108:00:321
557036995855,2cyclictest0-21swapper/108:00:321
557036995843,14cyclictest668457-21kworker/1:211:24:381
557036995843,14cyclictest668457-21kworker/1:211:24:381
557036995843,14cyclictest609573-21kworker/1:009:35:151
557036995843,14cyclictest575949-21kworker/1:208:30:321
557036995843,14cyclictest566641-21kworker/1:108:05:141
557036995843,14cyclictest566641-21kworker/1:108:05:141
557036995843,14cyclictest566641-21kworker/1:107:55:001
557036995843,14cyclictest565100-21kworker/1:207:35:151
557036995843,14cyclictest535011-1kworker/1:2H12:16:291
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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