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2024-04-24 - 00:56
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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 Tue Apr 23, 2024 12:43:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2184099114925957,5532cyclictest13512-21kworker/0:109:17:320
2184099110555841,5211cyclictest20691-21kworker/0:011:59:500
2184099106915669,5019cyclictest13512-21kworker/0:109:00:030
218409999665396,4567cyclictest13512-21kworker/0:109:53:290
218409997645195,4566cyclictest18206-21kworker/0:010:42:510
218409997325266,4459cyclictest13512-21kworker/0:108:15:520
218409997255174,4548cyclictest20691-21kworker/0:011:21:470
218409997095269,4437cyclictest18206-21kworker/0:010:48:400
218409996995163,4533cyclictest13512-21kworker/0:107:29:290
218409996945162,4529cyclictest20691-21kworker/0:011:46:010
218409996875154,4530cyclictest13512-21kworker/0:109:11:090
218409996815254,4424cyclictest13512-21kworker/0:107:16:290
218409996805155,4522cyclictest13512-21kworker/0:109:45:490
218409996425134,4505cyclictest7633-21kworker/0:010:16:050
218409996375130,4504cyclictest18206-21kworker/0:011:01:530
218409996235105,4503cyclictest13512-21kworker/0:108:41:510
218409995735099,4471cyclictest13512-21kworker/0:109:05:360
218409994935052,4438cyclictest20691-21kworker/0:011:51:170
218409994295028,4398cyclictest24477-21kworker/0:112:33:530
218409993244852,4442cyclictest18206-21kworker/0:010:57:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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