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2026-04-19 - 13:27
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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 Apr 19, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5792242313269,29sleep00-21swapper/019:06:330
5793552266199,53sleep10-21swapper/119:07:561
179699920,3rtkit-daemon1795-21rtkit-daemon19:44:090
6787172610,5sleep00-21swapper/022:20:220
5924402600,4sleep0592436-21seq19:40:000
179699540,4rtkit-daemon1795-21rtkit-daemon23:27:571
179699520,4rtkit-daemon1795-21rtkit-daemon21:54:121
179699520,4rtkit-daemon1795-21rtkit-daemon20:11:360
179699510,4rtkit-daemon1795-21rtkit-daemon00:29:391
57966799490,20cyclictest757824-21latency_hist00:15:011
179699490,3rtkit-daemon1795-21rtkit-daemon23:30:051
579667994810,14cyclictest588445-21appstreamcli19:30:031
179699480,3rtkit-daemon1795-21rtkit-daemon00:20:301
57966799469,12cyclictest673801-21apt-get22:15:081
57966799462,31cyclictest0-21swapper/119:55:011
179699460,3rtkit-daemon1795-21rtkit-daemon00:35:371
57966799457,16cyclictest751863-21sed00:05:011
179699450,1rtkit-daemon1795-21rtkit-daemon23:50:390
57966799449,12cyclictest695449-21apt-get22:45:131
57966799448,20cyclictest649822-21apt-get21:40:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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