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2025-03-21 - 08:24
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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: ondemand
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack5slot4.osadl.org (updated Fri Mar 21, 2025 00:44:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
44432112103,6sleep10-21swapper/119:07:501
4465211097,7sleep20-21swapper/219:08:072
4585210899,6sleep30-21swapper/319:09:403
4437210899,6sleep00-21swapper/019:07:450
160422620,0sleep10-21swapper/121:30:271
265212610,0sleep00-21swapper/022:28:100
318482560,0sleep30-21swapper/322:12:243
278932560,1sleep30-21swapper/323:38:153
120122550,0sleep10-21swapper/121:43:051
27052530,0sleep20-21swapper/220:55:232
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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