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2025-12-03 - 08:42
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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 rackcslot4.osadl.org (updated Wed Dec 03, 2025 00:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25406442262183,29sleep00-21swapper/019:06:130
25406442262183,29sleep00-21swapper/019:06:130
25407042247179,52sleep10-21swapper/119:06:501
25407042247179,52sleep10-21swapper/119:06:491
125899690,4rtkit-daemon1257-21rtkit-daemon20:08:300
254112699622,5cyclictest2697590-40apt-check23:40:151
254112199590,9cyclictest2733962-21ssh00:30:380
125899590,4rtkit-daemon1257-21rtkit-daemon20:27:260
2541126995711,27cyclictest2703894-21sh23:48:281
254112199573,35cyclictest2712151-21apt-get00:00:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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