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2025-12-18 - 08:51
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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 Thu Dec 18, 2025 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3843131996437,25cyclictest3853607-21kworker/1:320:15:141
3843131996260,1cyclictest0-21swapper/122:24:551
3843131996145,15cyclictest3913145-1kworker/1:2H00:12:341
3843131996144,16cyclictest3853607-21kworker/1:319:40:141
3843131996144,15cyclictest3367737-1kworker/1:1H19:15:141
3843131996143,17cyclictest3899838-21kworker/1:122:15:441
3843131996142,18cyclictest3899838-21kworker/1:122:10:141
3843131996039,19cyclictest3871248-21kworker/1:120:40:141
3843131995943,14cyclictest3913145-1kworker/1:2H22:55:461
3843131995943,14cyclictest3367737-1kworker/1:1H20:25:141
3843131995943,14cyclictest3367737-1kworker/1:1H19:55:121
3843131995843,14cyclictest3910698-21kworker/1:222:50:131
3843131995843,14cyclictest3906690-21kworker/1:322:40:161
3843131995843,14cyclictest3881551-21kworker/1:321:24:041
3843131995843,14cyclictest3853607-21kworker/1:319:50:141
3843131995843,14cyclictest3853607-21kworker/1:319:45:141
3843131995843,14cyclictest3851444-21kworker/1:219:35:011
3843131995842,15cyclictest3881551-21kworker/1:321:10:271
3843131995841,16cyclictest3845691-21kworker/1:319:20:141
3843131995839,17cyclictest3942533-21kworker/1:300:35:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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