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2025-06-28 - 22:57
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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 28, 2025 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2892049997431,41cyclictest2962207-21kworker/1:110:50:191
289204999670,2cyclictest0-21swapper/112:23:131
2892049996637,28cyclictest2976199-21kworker/1:211:35:181
289204999660,1cyclictest0-21swapper/109:14:491
2892049996561,2cyclictest0-21swapper/108:50:501
289204999650,64cyclictest0-21swapper/109:30:291
2892049996461,2cyclictest0-21swapper/112:05:341
2892049996345,16cyclictest2895754-21kworker/1:107:20:171
2892049996242,19cyclictest2935381-21kworker/1:009:40:181
2892049996146,14cyclictest2922479-21kworker/1:208:45:171
2892049996043,16cyclictest3642345-1kworker/1:1H12:30:161
2892049996043,16cyclictest2902454-21kworker/1:207:44:501
2892049996041,18cyclictest2907567-21kworker/1:108:10:001
2892049995944,14cyclictest2987954-21kworker/1:212:02:501
2892049995944,14cyclictest2976199-21kworker/1:211:30:151
2892049995944,14cyclictest2969965-21kworker/1:211:07:481
2892049995944,14cyclictest2935381-21kworker/1:009:25:491
2892049995943,15cyclictest2925655-21kworker/1:108:58:491
2892049995943,15cyclictest2922479-21kworker/1:208:41:201
2892049995943,15cyclictest2902454-21kworker/1:207:45:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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