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2026-03-17 - 13:01
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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
Characteristics of the 10 highest latencies:
System rack3slot0.osadl.org (updated Tue Mar 17, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
159332960,1sleep215923-21sshd23:21:302
99932820,2sleep01444599cyclictest21:23:390
142172780,1sleep114213-21sshd21:44:221
23342760,3sleep71450299cyclictest23:33:457
276462740,0sleep50-21swapper/521:07:185
10282580,0sleep70-21swapper/722:15:197
253132550,10sleep125-21ksoftirqd/100:01:181
21322510,1sleep52131-21systemd-cgroups23:28:065
1411825126,9sleep50-21swapper/519:04:115
223922490,0sleep449-21ksoftirqd/400:10:264
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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