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2026-09-23 - 01:44
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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 Wed Sep 23, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
57359918151715,87cyclictest0-21swapper/021:13:190
55072921896,17sleep00-21swapper/019:08:050
573599882814,54cyclictest0-21swapper/019:11:530
573699781713,49cyclictest0-21swapper/119:11:531
55842525501,15sleep10-21swapper/119:08:511
573699454411,29cyclictest0-21swapper/121:13:191
2286991180,30rtkit-daemon2285-21rtkit-daemon20:19:551
2286991180,30rtkit-daemon2285-21rtkit-daemon20:19:551
2286991160,32rtkit-daemon2285-21rtkit-daemon19:37:291
2286991130,34rtkit-daemon2285-21rtkit-daemon00:23:141
2286991120,34rtkit-daemon2285-21rtkit-daemon20:36:251
2286991120,33rtkit-daemon2285-21rtkit-daemon20:06:351
2286991120,33rtkit-daemon2285-21rtkit-daemon20:06:351
2286991120,32rtkit-daemon2285-21rtkit-daemon19:34:451
2286991110,33rtkit-daemon2285-21rtkit-daemon20:00:101
2286991110,33rtkit-daemon2285-21rtkit-daemon20:00:101
2286991100,32rtkit-daemon2285-21rtkit-daemon00:04:141
2286991100,31rtkit-daemon2285-21rtkit-daemon20:57:451
2286991100,30rtkit-daemon2285-21rtkit-daemon20:32:451
2286991100,30rtkit-daemon2285-21rtkit-daemon19:51:451
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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