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2026-04-21 - 01:11
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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 Apr 21, 2026 00:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2010521240,0sleep10-21swapper/122:37:301
814821220,3sleep62001399cyclictest21:48:146
1733321210,0sleep20-21swapper/200:14:522
122942950,1sleep40-21swapper/423:49:224
122942950,1sleep40-21swapper/423:49:214
45502890,0sleep40-21swapper/421:46:204
122842860,4sleep52000599cyclictest21:43:245
31982830,0sleep00-21swapper/023:20:160
285042810,1sleep128456-21sshd23:45:111
285042810,1sleep128456-21sshd23:45:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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