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2025-01-13 - 12:12
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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 Mon Jan 13, 2025 00:44:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2787599112885858,5420cyclictest21769-21kworker/0:022:03:510
2787599108575417,5416cyclictest13621-21kworker/0:200:30:270
2787599107345504,5226cyclictest21769-21kworker/0:021:37:060
2787599104215491,4879cyclictest12240-21kworker/0:222:48:210
2787599102095234,4964cyclictest21769-21kworker/0:022:11:500
2787599101655318,4843cyclictest6112-21kworker/0:123:11:070
278759998675247,4609cyclictest22941-21kworker/0:120:58:240
278759998105219,4580cyclictest17663-21kworker/0:219:45:220
278759997295077,4641cyclictest13621-21kworker/0:223:22:580
278759996945054,4629cyclictest12240-21kworker/0:222:39:210
278759993904827,4552cyclictest17663-21kworker/0:219:34:130
278759993784816,4558cyclictest13621-21kworker/0:200:03:120
278759992874778,4505cyclictest21769-21kworker/0:021:52:310
278759992084736,4461cyclictest6112-21kworker/0:123:19:110
278759991644708,4451cyclictest13621-21kworker/0:200:22:490
278759991574817,4337cyclictest17663-21kworker/0:219:14:290
278759991514692,4448cyclictest21769-21kworker/0:021:56:290
278759989554607,4337cyclictest17663-21kworker/0:219:21:510
278759989434678,4222cyclictest12240-21kworker/0:222:44:560
278759989284488,4429cyclictest22941-21kworker/0:121:17:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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