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2026-06-09 - 13:03
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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 Tue Jun 09, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29060999782,870cyclictest17285-21interrupts20:05:200
29061998903,863cyclictest14-21rcuop/020:05:201
289472572552,12sleep10-21swapper/119:09:101
2906099428346,53cyclictest0-21swapper/019:10:090
2906199427348,47cyclictest0-21swapper/119:10:091
289432320297,16sleep00-21swapper/019:09:060
2420121180,3sleep024202-21unixbench-2d22:35:250
228699910,5rtkit-daemon2591-21kworker/0:021:11:180
228699780,4rtkit-daemon2285-21rtkit-daemon20:35:180
228699780,4rtkit-daemon2285-21rtkit-daemon20:35:180
228699750,31rtkit-daemon2285-21rtkit-daemon22:34:350
228699740,4rtkit-daemon2285-21rtkit-daemon23:49:110
228699740,4rtkit-daemon2285-21rtkit-daemon00:32:021
228699740,4rtkit-daemon2285-21rtkit-daemon00:19:170
228699740,4rtkit-daemon2285-21rtkit-daemon00:05:310
228699730,5rtkit-daemon2285-21rtkit-daemon20:15:170
228699730,4rtkit-daemon2285-21rtkit-daemon23:59:560
228699730,4rtkit-daemon2285-21rtkit-daemon23:50:410
228699730,4rtkit-daemon2285-21rtkit-daemon21:31:030
228699730,4rtkit-daemon2285-21rtkit-daemon20:02:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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