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2026-07-16 - 21:54
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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 Thu Jul 16, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23564082263191,27sleep00-21swapper/007:06:140
23566842260187,58sleep10-21swapper/107:09:121
256263921560,3sleep10-21swapper/112:28:101
106799760,10rtkit-daemon1066-21rtkit-daemon10:45:211
106799510,5rtkit-daemon2405373-21diskmemload12:32:300
106799510,4rtkit-daemon1066-21rtkit-daemon11:15:041
106799500,4rtkit-daemon1066-21rtkit-daemon09:12:041
106799490,4rtkit-daemon1066-21rtkit-daemon12:35:390
106799490,3rtkit-daemon1066-21rtkit-daemon10:19:370
106799490,3rtkit-daemon1066-21rtkit-daemon08:29:450
106799480,3rtkit-daemon1066-21rtkit-daemon11:23:320
106799480,3rtkit-daemon1066-21rtkit-daemon08:18:080
106799470,3rtkit-daemon1066-21rtkit-daemon10:52:360
106799460,3rtkit-daemon1066-21rtkit-daemon08:11:580
25242022450,3sleep00-21swapper/011:39:560
106799450,4rtkit-daemon1066-21rtkit-daemon11:30:040
235691599422,11cyclictest2359581-21apt-get07:15:141
106799380,3rtkit-daemon0-21swapper/110:36:030
106799380,3rtkit-daemon0-21swapper/011:55:370
106799370,4rtkit-daemon1066-21rtkit-daemon10:47:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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