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2024-04-25 - 23:54
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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 Thu Apr 25, 2024 12:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
147400997243,27cyclictest322051-21kworker/1:212:10:151
147400997141,27cyclictest229682-21kworker/1:210:07:081
147400996635,17cyclictest298772-21kworker/1:211:40:161
147400996442,21cyclictest183343-1kworker/1:1H11:00:171
147400996436,17cyclictest181393-21kworker/1:009:10:221
147400996341,14cyclictest304597-21kworker/1:111:45:151
147400996338,16cyclictest159542-21kworker/1:208:15:141
14740099630,62cyclictest0-21swapper/111:05:171
147400996144,16cyclictest243626-21kworker/1:010:25:131
147400996139,14cyclictest229682-21kworker/1:210:23:101
147400996040,18cyclictest183343-1kworker/1:1H09:30:001
147400995956,2cyclictest0-21swapper/111:57:551
147400995944,14cyclictest229682-21kworker/1:210:15:121
147400995944,14cyclictest159542-21kworker/1:208:40:201
147400995944,14cyclictest159542-21kworker/1:208:35:041
147400995943,16cyclictest189501-21kworker/1:109:20:561
147400995942,16cyclictest147167-21kworker/1:107:15:021
147400995843,14cyclictest344598-21kworker/1:112:35:131
147400995843,14cyclictest284426-21kworker/1:011:20:131
147400995843,14cyclictest256649-21kworker/1:110:45:511
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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