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2026-08-17 - 18:25
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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 Mon Aug 17, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1947299901811,53cyclictest15045-21strings08:25:211
191122884861,16sleep00-21swapper/007:06:520
1947199813718,85cyclictest0-21swapper/008:25:210
19471995282,5cyclictest20277-21strings07:10:210
1947299436366,30cyclictest0-21swapper/107:10:201
190772202159,15sleep10-21swapper/107:06:291
2286991090,4rtkit-daemon2285-21rtkit-daemon09:34:451
2286991080,4rtkit-daemon2285-21rtkit-daemon12:28:121
2286991050,3rtkit-daemon2285-21rtkit-daemon10:22:411
19471991025,92cyclictest0-21swapper/011:16:580
228699960,4rtkit-daemon2285-21rtkit-daemon08:38:041
228699950,4rtkit-daemon2285-21rtkit-daemon10:17:051
1947199956,73cyclictest30471-21diskmemload11:22:590
228699940,4rtkit-daemon2285-21rtkit-daemon11:56:121
228699930,4rtkit-daemon2285-21rtkit-daemon11:34:321
228699930,4rtkit-daemon2285-21rtkit-daemon11:34:311
228699930,12rtkit-daemon0-21swapper/009:19:101
228699920,4rtkit-daemon2285-21rtkit-daemon11:09:311
228699920,4rtkit-daemon2285-21rtkit-daemon08:49:041
19472998919,58cyclictest0-21swapper/109:07:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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