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2026-03-16 - 03:53
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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 Mar 16, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26048999864,13cyclictest0-21swapper/119:44:451
26047999754,916cyclictest0-21swapper/019:44:450
256752494472,13sleep10-21swapper/119:06:351
2604799462389,59cyclictest0-21swapper/019:10:140
2604899452375,62cyclictest26439-21df19:10:141
2571329633,51sleep00-21swapper/019:07:000
228699960,4rtkit-daemon2285-21rtkit-daemon23:46:540
228699800,7rtkit-daemon2285-21rtkit-daemon21:15:200
228699740,4rtkit-daemon2285-21rtkit-daemon22:27:270
228699670,5rtkit-daemon2285-21rtkit-daemon00:27:300
154992670,4sleep115500-21awk00:22:541
26047996529,29cyclictest0-21swapper/021:43:370
228699630,5rtkit-daemon2285-21rtkit-daemon23:30:080
26047996224,31cyclictest0-21swapper/023:22:280
26047996216,39cyclictest0-21swapper/021:35:220
228699610,4rtkit-daemon2285-21rtkit-daemon00:31:550
292642596,15sleep10-21swapper/122:50:261
26047995826,18cyclictest0-21swapper/021:55:320
87782575,15sleep10-21swapper/123:11:541
262282574,14sleep00-21swapper/023:44:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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