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2023-09-23 - 17:35
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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
Characteristics of the 20 highest latencies:
System rack6slot5.osadl.org (updated Sat Sep 23, 2023 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2834699104035207,5182cyclictest14604-21kworker/0:007:16:000
283469997735114,4648cyclictest21865-21kworker/0:210:39:360
283469996865185,4498cyclictest14604-21kworker/0:007:56:060
283469996085135,4470cyclictest14604-21kworker/0:009:50:160
283469996005135,4462cyclictest21865-21kworker/0:211:44:350
283469995605123,4434cyclictest14604-21kworker/0:008:29:570
283469995295109,4417cyclictest14604-21kworker/0:008:53:440
283469992794762,4505cyclictest21865-21kworker/0:212:24:070
283469991624721,4430cyclictest21865-21kworker/0:212:04:380
283469991294698,4420cyclictest21865-21kworker/0:210:47:140
283469990404772,4265cyclictest14604-21kworker/0:008:02:470
283469989904514,4461cyclictest14604-21kworker/0:009:06:470
283469987914636,4152cyclictest14604-21kworker/0:008:36:450
283469987864639,4144cyclictest14604-21kworker/0:009:16:390
283469987734520,4238cyclictest14604-21kworker/0:008:07:380
283469986964598,4095cyclictest7066-21kworker/0:110:05:110
283469986954458,4187cyclictest14604-21kworker/0:008:58:290
283469986464573,4070cyclictest21865-21kworker/0:212:19:580
283469985654308,4242cyclictest14604-21kworker/0:007:33:110
283469985334305,4224cyclictest21865-21kworker/0:211:30:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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