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2025-11-25 - 02:10
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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
Characteristics of the 20 highest latencies:
System rackcslot4.osadl.org (updated Mon Nov 24, 2025 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3515122256180,60sleep00-21swapper/007:07:510
3515932245187,44sleep10-21swapper/107:08:431
4579632640,1sleep00-21swapper/010:22:290
125899640,4rtkit-daemon1257-21rtkit-daemon10:43:561
125899590,4rtkit-daemon1257-21rtkit-daemon10:20:481
4238072580,2sleep10-21swapper/109:38:191
125899580,4rtkit-daemon1257-21rtkit-daemon12:23:000
125899510,4rtkit-daemon1257-21rtkit-daemon10:10:251
125899510,4rtkit-daemon1257-21rtkit-daemon10:02:400
125899510,3rtkit-daemon1257-21rtkit-daemon11:47:120
125899510,3rtkit-daemon0-21swapper/111:06:461
125899500,4rtkit-daemon1257-21rtkit-daemon08:15:091
125899500,4rtkit-daemon1257-21rtkit-daemon08:15:091
4631302490,4sleep0161rcuc/010:30:010
125899490,4rtkit-daemon1257-21rtkit-daemon09:06:221
125899480,4rtkit-daemon1257-21rtkit-daemon07:46:361
125899480,3rtkit-daemon0-21swapper/108:29:101
125899470,3rtkit-daemon1257-21rtkit-daemon09:03:561
125899450,3rtkit-daemon0-21swapper/107:58:461
125899450,3rtkit-daemon0-21swapper/107:24:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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