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2025-12-05 - 13:37
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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 Fri Dec 05, 2025 12:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
262921220,0sleep62630-21sshd09:41:316
1524821150,0sleep10-21swapper/110:06:581
126682840,1sleep40-21swapper/410:15:584
164932780,0sleep60-21swapper/611:42:076
133132780,0sleep40-21swapper/412:05:214
107702750,1sleep6671rcuc/609:52:126
267842740,1sleep00-21swapper/012:16:480
56842730,0sleep10-21swapper/112:32:361
184952730,0sleep50-21swapper/510:26:175
102232730,0sleep60-21swapper/609:47:246
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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