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2025-11-07 - 20:55
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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 Nov 07, 2025 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6683982244174,55sleep00-21swapper/007:09:100
6681752239171,51sleep10-21swapper/107:06:481
7258462750,4sleep1725847-21apt-config09:20:031
66859499565,9cyclictest813767-21apt-get11:10:181
125899550,11rtkit-daemon1257-21rtkit-daemon12:27:530
7824112530,3sleep1782407-21sed10:30:191
125899520,4rtkit-daemon1257-21rtkit-daemon10:18:530
125899510,4rtkit-daemon1257-21rtkit-daemon11:48:580
125899510,4rtkit-daemon1257-21rtkit-daemon09:46:360
125899500,4rtkit-daemon1257-21rtkit-daemon08:59:120
125899490,4rtkit-daemon1257-21rtkit-daemon09:10:471
125899490,4rtkit-daemon1257-21rtkit-daemon07:53:250
125899490,3rtkit-daemon1257-21rtkit-daemon11:38:240
125899480,4rtkit-daemon1257-21rtkit-daemon10:23:200
125899480,4rtkit-daemon1257-21rtkit-daemon07:45:541
125899480,4rtkit-daemon1257-21rtkit-daemon07:17:411
125899460,4rtkit-daemon1257-21rtkit-daemon09:03:570
125899400,3rtkit-daemon0-21swapper/009:39:300
125899390,3rtkit-daemon0-21swapper/011:57:140
668594993833,3cyclictest713177-21apt-config09:00:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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