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2025-10-21 - 22:33
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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 10 highest latencies:
System rack0slot0.osadl.org (updated Tue Oct 21, 2025 12:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
51852850,0sleep40-21swapper/410:32:274
270102810,3sleep73225999cyclictest08:05:107
47032790,0sleep40-21swapper/410:41:574
58662780,0sleep40-21swapper/409:25:514
52192760,0sleep30-21swapper/310:37:153
176132760,0sleep0121rcuc/012:28:040
269342750,0sleep60-21swapper/611:56:286
29422740,0sleep60-21swapper/610:36:546
288662740,0sleep10-21swapper/111:04:461
187152740,1sleep318712-21sshd09:37:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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