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2026-07-29 - 04:53
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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 Wed Jul 29, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4175516997539,35cyclictest204468-21kworker/1:100:35:141
4175516997236,34cyclictest1810835-1kworker/1:0H23:01:291
4175516997136,33cyclictest67452-21kworker/1:022:10:131
417551699710,69cyclictest4192132-21fschecks_time20:00:121
4175516996840,26cyclictest1810835-1kworker/1:0H20:50:161
4175516996839,28cyclictest36525-21kworker/1:121:35:111
4175516996836,31cyclictest4183733-21kworker/1:119:35:121
4175516996740,26cyclictest178821-21kworker/1:000:10:141
4175516996737,29cyclictest1810835-1kworker/1:0H21:30:141
4175516996737,29cyclictest1810835-1kworker/1:0H00:20:151
4175516996639,26cyclictest161765-21kworker/1:023:50:001
4175516996637,28cyclictest136553-21kworker/1:123:22:081
4175516996637,27cyclictest51046-21kworker/1:121:50:171
4175516996636,29cyclictest1810835-1kworker/1:0H00:25:151
4175516996539,25cyclictest186458-21kworker/1:200:15:151
4175516996538,25cyclictest9834-21kworker/1:220:40:141
4175516996537,27cyclictest1810835-1kworker/1:0H23:45:001
4175516996534,29cyclictest4183733-21kworker/1:119:50:151
4175516996439,23cyclictest1810835-1kworker/1:0H21:00:001
4175516996437,26cyclictest4193675-21kworker/1:320:25:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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