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2026-06-26 - 23:21
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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 rack1slot8.osadl.org (updated Fri Jun 26, 2026 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
60709918431799,35cyclictest28532-21strings08:10:200
607099880810,52cyclictest0-21swapper/007:10:090
607199809738,46cyclictest0-21swapper/107:10:091
56212794776,12sleep10-21swapper/107:05:511
5965273423,703sleep00-21swapper/007:09:210
607199381337,30cyclictest0-21swapper/108:10:201
2286991720,4rtkit-daemon2285-21rtkit-daemon10:33:061
2286991350,35rtkit-daemon5154-21ssh11:40:260
1439221160,3sleep0221rcuc/010:00:570
2286991120,4rtkit-daemon2285-21rtkit-daemon12:00:571
2286991100,4rtkit-daemon2285-21rtkit-daemon09:46:541
2286991090,4rtkit-daemon2285-21rtkit-daemon08:44:481
2286991080,4rtkit-daemon2285-21rtkit-daemon10:01:291
2286991080,4rtkit-daemon2285-21rtkit-daemon08:53:281
2286991070,4rtkit-daemon2285-21rtkit-daemon12:10:531
2286991070,4rtkit-daemon2285-21rtkit-daemon11:59:511
2286991070,4rtkit-daemon2285-21rtkit-daemon11:37:461
2286991070,4rtkit-daemon2285-21rtkit-daemon10:40:061
2286991070,4rtkit-daemon2285-21rtkit-daemon08:09:021
2286991070,4rtkit-daemon2285-21rtkit-daemon07:29:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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