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2025-11-03 - 09:57
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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 Nov 03, 2025 00:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27931572268180,28sleep10-21swapper/119:08:031
27929892256189,52sleep00-21swapper/019:06:160
295198721360,4sleep10-21swapper/123:38:131
125899560,4rtkit-daemon1257-21rtkit-daemon00:30:051
29126592470,2sleep00-21swapper/022:45:030
125899470,3rtkit-daemon0-21swapper/023:16:410
29330642450,4sleep10-21swapper/123:11:021
125899450,3rtkit-daemon0-21swapper/022:31:100
125899450,3rtkit-daemon0-21swapper/019:22:010
29406142440,3sleep00-21swapper/023:21:530
28746142430,4sleep10-21swapper/121:53:201
125899410,3rtkit-daemon0-21swapper/020:53:070
125899410,3rtkit-daemon0-21swapper/000:06:060
125899400,3rtkit-daemon0-21swapper/020:41:400
125899400,3rtkit-daemon0-21swapper/020:22:380
125899380,4rtkit-daemon1257-21rtkit-daemon00:13:330
125899370,3rtkit-daemon0-21swapper/121:28:000
125899360,4rtkit-daemon1257-21rtkit-daemon21:35:071
125899330,1rtkit-daemon1257-21rtkit-daemon22:29:200
125899320,1rtkit-daemon1257-21rtkit-daemon22:13:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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