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2026-06-04 - 02:15
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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: ondemand
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack5slot4.osadl.org (updated Thu Jun 04, 2026 00:44:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3989212664,7sleep10-21swapper/119:07:141
38882112103,6sleep20-21swapper/219:05:552
39762111102,6sleep30-21swapper/319:07:043
31297210999,7sleep00-21swapper/019:05:100
152502640,1sleep115256-21gltestperf22:10:161
102022580,0sleep30-21swapper/300:00:133
156242540,0sleep00-21swapper/019:20:140
437699270,26cyclictest0-21swapper/220:07:002
437399270,26cyclictest0-21swapper/121:53:341
437399270,26cyclictest0-21swapper/121:37:071
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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