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2026-06-20 - 18:33
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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 Sat Jun 20, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2678081997444,29cyclictest2845412-21kworker/1:111:45:111
2678081997440,32cyclictest2765081-21kworker/1:010:10:151
2678081997241,30cyclictest2801563-21kworker/1:111:00:151
2678081997138,31cyclictest2801563-21kworker/1:111:05:241
2678081997040,29cyclictest2730801-21kworker/1:009:50:001
2678081996839,27cyclictest2833561-21kworker/1:311:30:001
2678081996836,30cyclictest2703410-21kworker/1:008:40:141
267808199670,65cyclictest0-21swapper/107:40:391
2678081996537,27cyclictest2730801-21kworker/1:009:35:011
2678081996537,26cyclictest2851592-21kworker/1:012:35:231
2678081996437,26cyclictest2851592-21kworker/1:012:05:161
2678081996435,28cyclictest2430601-1kworker/1:0H07:20:161
2678081996333,28cyclictest2703410-21kworker/1:008:35:151
2678081996229,31cyclictest2818054-21kworker/1:211:15:131
2678081996143,16cyclictest2680186-21kworker/1:007:30:001
2678081996141,19cyclictest2430601-1kworker/1:0H12:29:591
2678081996136,24cyclictest2680186-21kworker/1:007:45:231
2678081996135,25cyclictest2801563-21kworker/1:111:14:521
2678081996133,26cyclictest2680186-21kworker/1:007:35:161
2678081996131,28cyclictest2714269-21kworker/1:209:10:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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