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2025-12-07 - 16:19
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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 Sun Dec 07, 2025 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2999962270193,27sleep10-21swapper/107:08:181
2997692266189,27sleep00-21swapper/007:05:530
49985621440,4sleep10-21swapper/112:30:431
3298382610,2sleep00-21swapper/008:20:270
125899570,4rtkit-daemon1257-21rtkit-daemon10:48:220
125899550,4rtkit-daemon1257-21rtkit-daemon11:53:061
125899520,4rtkit-daemon1257-21rtkit-daemon07:36:191
125899510,4rtkit-daemon1257-21rtkit-daemon12:24:011
125899500,4rtkit-daemon1257-21rtkit-daemon07:51:071
125899460,4rtkit-daemon1257-21rtkit-daemon10:22:111
125899440,15rtkit-daemon0-21swapper/108:40:511
5021112420,2sleep1502112-21cat12:35:151
3502292420,4sleep00-21swapper/009:11:050
125899420,4rtkit-daemon1257-21rtkit-daemon09:05:170
125899400,5rtkit-daemon422276-21runrttasks10:45:291
125899400,3rtkit-daemon0-21swapper/011:32:090
125899390,5rtkit-daemon1257-21rtkit-daemon12:25:251
125899380,3rtkit-daemon0-21swapper/111:25:311
125899380,3rtkit-daemon0-21swapper/011:12:540
125899370,4rtkit-daemon1257-21rtkit-daemon10:03:471
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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