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2026-04-06 - 05:41
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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 Apr 06, 2026 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41559242311271,26sleep10-21swapper/119:05:071
41576632271194,28sleep00-21swapper/019:09:470
179699570,3rtkit-daemon1795-21rtkit-daemon22:20:071
179699550,6rtkit-daemon1795-21rtkit-daemon22:44:491
179699550,4rtkit-daemon1795-21rtkit-daemon23:30:040
179699530,4rtkit-daemon1795-21rtkit-daemon23:05:541
41741362500,4sleep04174134-21seq19:50:020
179699490,4rtkit-daemon1795-21rtkit-daemon00:19:500
1484082470,2sleep0161rcuc/000:20:220
179699460,4rtkit-daemon1795-21rtkit-daemon21:30:021
411462450,3sleep041143-21apt-get21:50:110
179699420,9rtkit-daemon89287-21ssh22:57:401
1396432420,2sleep10-21swapper/100:08:111
179699410,3rtkit-daemon1795-21rtkit-daemon00:02:141
179699410,12rtkit-daemon0-21swapper/023:52:200
179699400,3rtkit-daemon0-21swapper/021:18:320
179699380,3rtkit-daemon0-21swapper/023:22:510
179699360,4rtkit-daemon1795-21rtkit-daemon21:51:051
179699360,4rtkit-daemon1795-21rtkit-daemon20:20:130
179699360,4rtkit-daemon0-21swapper/120:46:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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