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2025-12-05 - 07:00
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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 20 highest latencies:
System rackcslot4.osadl.org (updated Fri Dec 05, 2025 00:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6549292259186,58sleep00-21swapper/019:07:400
6548982251186,50sleep10-21swapper/119:07:211
125899710,4rtkit-daemon1257-21rtkit-daemon20:50:221
125899670,4rtkit-daemon1257-21rtkit-daemon22:13:291
7050282580,8sleep0161rcuc/021:10:560
125899580,4rtkit-daemon1257-21rtkit-daemon22:17:560
7328522570,5sleep0732798-21store21:50:030
125899570,4rtkit-daemon1257-21rtkit-daemon22:11:140
125899570,3rtkit-daemon0-21swapper/022:16:261
6747232550,4sleep00-21swapper/019:55:220
125899530,4rtkit-daemon1257-21rtkit-daemon21:35:110
125899530,4rtkit-daemon1257-21rtkit-daemon21:17:481
125899410,4rtkit-daemon703152-21diskmemload23:06:011
125899380,5rtkit-daemon1257-21rtkit-daemon23:27:441
125899380,5rtkit-daemon1257-21rtkit-daemon23:22:041
125899380,5rtkit-daemon1257-21rtkit-daemon23:22:041
125899380,4rtkit-daemon1257-21rtkit-daemon21:59:201
125899380,4rtkit-daemon0-21swapper/123:59:291
125899380,3rtkit-daemon0-21swapper/121:48:141
125899380,3rtkit-daemon0-21swapper/120:58:081
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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