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2024-07-19 - 04:39
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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
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack4slot6.osadl.org (updated Fri Jul 19, 2024 00:44:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24528521120,103pltrace0-21swapper/219:05:202
2731252930,87pltrace0-21swapper/519:10:015
2452852840,79pltrace0-21swapper/619:08:166
2719826551,10sleep10-21swapper/119:08:021
2703826248,10sleep30-21swapper/319:05:483
2732126147,10sleep70-21swapper/719:09:297
2719726146,11sleep00-21swapper/019:08:010
2457825843,10sleep40-21swapper/419:05:014
314762360,0sleep10-21swapper/121:10:111
3040852360,7pltrace78-21ksoftirqd/721:10:037
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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