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2026-05-20 - 10:25
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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 rack2slot0.osadl.org (updated Wed May 20, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
873621040,2sleep02203399cyclictest23:33:590
142142940,1sleep014203-21sshd23:23:170
54722740,0sleep20-21swapper/200:01:252
168652730,0sleep10-21swapper/123:29:071
76022660,1sleep17603-21bash00:21:051
240042610,0sleep20-21swapper/222:00:112
36682590,0sleep00-21swapper/023:36:150
36682590,0sleep00-21swapper/023:36:140
230092570,0sleep10-21swapper/122:00:061
62452550,0sleep00-21swapper/021:13:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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