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2025-11-22 - 08:10
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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 Nov 22, 2025 00:45:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
218821150,0sleep20-21swapper/200:36:332
230032910,1sleep61036-21runrttasks23:48:126
267882870,1sleep70-21swapper/700:18:597
91562850,1sleep20-21swapper/222:07:342
308062830,0sleep30-21swapper/321:43:223
16932800,1sleep10-21swapper/100:26:221
256872770,0sleep4501ktimersoftd/422:25:394
293052760,0sleep70-21swapper/723:19:047
24092760,0sleep70-21swapper/723:26:097
230882760,1sleep60-21swapper/623:08:296
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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