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2024-11-22 - 10:41
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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 rack5slot3.osadl.org (updated Fri Nov 22, 2024 00:50:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1923929287,2sleep60-21swapper/619:05:246
1941228454,26sleep00-21swapper/019:05:490
1967228248,30sleep70-21swapper/719:09:337
1966827945,29sleep30-21swapper/319:09:293
1953827742,30sleep40-21swapper/419:07:374
1947927743,29sleep20-21swapper/219:06:482
1956427642,30sleep10-21swapper/119:07:591
1945327541,29sleep50-21swapper/519:06:275
267882500,0sleep50-21swapper/523:28:475
214392500,0sleep30-21swapper/321:52:293
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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