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2026-04-11 - 12:23
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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 Sat Apr 11, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37646232271195,43sleep00-21swapper/019:05:560
37648332265223,28sleep10-21swapper/119:08:111
394966821090,4sleep10-21swapper/100:23:201
37819332680,4sleep00-21swapper/019:50:110
179699620,5rtkit-daemon1795-21rtkit-daemon00:14:401
179699560,5rtkit-daemon1795-21rtkit-daemon00:01:261
38437072540,3sleep00-21swapper/021:50:210
179699540,3rtkit-daemon1795-21rtkit-daemon23:05:161
179699530,3rtkit-daemon1795-21rtkit-daemon21:28:370
179699510,4rtkit-daemon1795-21rtkit-daemon22:26:201
179699490,3rtkit-daemon1795-21rtkit-daemon22:36:501
179699480,3rtkit-daemon1795-21rtkit-daemon23:58:301
179699480,3rtkit-daemon1795-21rtkit-daemon21:53:301
179699470,3rtkit-daemon1795-21rtkit-daemon22:04:541
39418532450,2sleep00-21swapper/000:10:200
38716092450,2sleep03871603-21sort22:30:140
179699450,4rtkit-daemon1795-21rtkit-daemon23:41:160
179699450,3rtkit-daemon0-21swapper/019:32:470
179699430,3rtkit-daemon0-21swapper/122:40:570
179699430,3rtkit-daemon0-21swapper/121:14:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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