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2026-03-18 - 14:08
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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 Wed Mar 18, 2026 12:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41482850,1sleep09-21ksoftirqd/012:11:150
163342720,1sleep12213499cyclictest12:26:451
135512710,1sleep125-21ksoftirqd/110:29:441
183572570,0sleep10-21swapper/109:14:151
29782560,0sleep10-21swapper/110:10:381
193172560,0sleep00-21swapper/009:19:510
57302520,0sleep60-21swapper/611:06:256
179482510,0sleep70-21swapper/710:20:457
160412510,2sleep42214799cyclictest10:07:364
246052500,0sleep50-21swapper/511:20:265
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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