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2026-04-24 - 13:22
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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 Fri Apr 24, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
229021030,0sleep02291-21sshd22:19:100
1902921000,2sleep1220199cyclictest21:25:251
83432980,2sleep1220199cyclictest00:10:301
140582980,2sleep1220199cyclictest22:45:081
137922780,0sleep30-21swapper/322:42:173
154272750,0sleep30-21swapper/322:50:423
183692680,1sleep218358-21sshd21:41:362
90902590,0sleep00-21swapper/023:59:360
225362590,1sleep122540-21grepconf.sh22:23:411
235142570,0sleep30-21swapper/323:55:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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