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2026-05-23 - 04:20
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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 Sat May 23, 2026 00:45:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
768721610,1sleep00-21swapper/023:16:500
1033621540,4sleep22630399cyclictest21:26:232
1600521510,1sleep716003-21/usr/sbin/munin21:40:157
2287221490,0sleep022862-21sshd00:17:090
1679821350,0sleep60-21swapper/622:45:056
2186821190,5sleep62632699cyclictest23:24:266
2738321110,3sleep42631699cyclictest00:05:264
83962950,5sleep72633299cyclictest21:51:457
256182890,1sleep625602-21sshd23:38:126
277312870,1sleep527726-21sshd22:08:035
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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