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2026-04-03 - 05:27
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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 Fri Apr 03, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27093892275193,28sleep00-21swapper/019:07:200
27078792249178,20sleep10-21swapper/119:05:051
179699640,3rtkit-daemon1795-21rtkit-daemon21:45:021
179699560,4rtkit-daemon1795-21rtkit-daemon22:36:110
179699560,3rtkit-daemon1795-21rtkit-daemon23:11:110
179699550,4rtkit-daemon1795-21rtkit-daemon22:59:381
179699470,3rtkit-daemon1795-21rtkit-daemon20:22:471
28194672460,4sleep12819463-21ssh22:35:231
179699420,3rtkit-daemon1795-21rtkit-daemon23:42:440
179699410,5rtkit-daemon0-21swapper/022:31:130
28317062390,4sleep00-21swapper/022:53:350
179699380,3rtkit-daemon0-21swapper/022:22:060
270975999370,14cyclictest28544042cut23:25:180
179699360,5rtkit-daemon2865073-21memory23:40:211
179699360,3rtkit-daemon0-21swapper/123:48:020
179699360,3rtkit-daemon0-21swapper/122:29:160
179699360,3rtkit-daemon0-21swapper/020:01:230
179699360,3rtkit-daemon0-21swapper/000:12:060
179699350,4rtkit-daemon1795-21rtkit-daemon23:09:570
179699350,3rtkit-daemon0-21swapper/122:24:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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