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2026-07-15 - 01:33
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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 Jul 15, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2928199853783,48cyclictest0-21swapper/119:29:531
290722718696,16sleep00-21swapper/019:08:190
2928099440351,82cyclictest0-21swapper/019:10:040
2928199338273,27cyclictest0-21swapper/119:10:041
2286991170,4rtkit-daemon2285-21rtkit-daemon22:54:140
2286991130,4rtkit-daemon2285-21rtkit-daemon23:15:311
2286991130,4rtkit-daemon2285-21rtkit-daemon22:28:501
2286991130,4rtkit-daemon2285-21rtkit-daemon22:09:341
2286991130,4rtkit-daemon2285-21rtkit-daemon00:17:121
2286991120,4rtkit-daemon2285-21rtkit-daemon22:31:001
2286991120,4rtkit-daemon2285-21rtkit-daemon20:58:031
2286991120,4rtkit-daemon2285-21rtkit-daemon20:39:181
2286991120,4rtkit-daemon2285-21rtkit-daemon20:18:081
2286991110,4rtkit-daemon2285-21rtkit-daemon23:35:561
2286991110,4rtkit-daemon2285-21rtkit-daemon21:32:141
2286991110,4rtkit-daemon2285-21rtkit-daemon21:23:241
2286991110,4rtkit-daemon2285-21rtkit-daemon20:13:081
2286991110,4rtkit-daemon2285-21rtkit-daemon20:09:221
2286991110,4rtkit-daemon2285-21rtkit-daemon19:54:021
2286991110,4rtkit-daemon2285-21rtkit-daemon19:21:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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