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2026-05-04 - 02:03
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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 May 04, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
204789917931738,39cyclictest21761-21awk19:10:250
202632990968,15sleep10-21swapper/119:08:131
2047899845765,49cyclictest0-21swapper/000:20:150
2047999790712,46cyclictest0-21swapper/100:20:161
20479995515,529cyclictest0-21swapper/119:10:251
202102142117,17sleep00-21swapper/019:07:430
521521220,3sleep15217-21cut21:20:111
2286991210,37rtkit-daemon2599-21munin-run19:50:011
95802930,2sleep0221rcuc/022:25:150
228699910,4rtkit-daemon2285-21rtkit-daemon00:00:400
20478998869,15cyclictest0-21swapper/021:13:590
228699840,4rtkit-daemon2285-21rtkit-daemon20:32:520
228699840,3rtkit-daemon5275-21ntp_kernel_pll_19:55:210
228699830,4rtkit-daemon2285-21rtkit-daemon22:42:540
228699810,4rtkit-daemon2285-21rtkit-daemon20:45:220
20479998116,48cyclictest0-21swapper/120:30:591
228699800,4rtkit-daemon2285-21rtkit-daemon19:23:260
20479998013,42cyclictest0-21swapper/119:18:001
20479997916,40cyclictest0-21swapper/121:44:001
228699780,3rtkit-daemon2285-21rtkit-daemon21:08:570
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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