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2023-12-07 - 15:32
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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 rack0slot5.osadl.org (updated Thu Dec 07, 2023 00:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20908722387381,3sleep80-21swapper/819:04:2414
20908222376371,3sleep100-21swapper/1019:03:382
20888952353347,3sleep140-21swapper/1419:02:386
20909102351314,10sleep70-21swapper/719:04:5513
20910442342324,10sleep150-21swapper/1519:06:567
20907702341335,3sleep120-21swapper/1219:02:524
20907772339304,27sleep20-21swapper/219:02:588
20910422337319,10sleep130-21swapper/1319:06:545
20909972337319,10sleep50-21swapper/519:06:1411
20909062337319,10sleep30-21swapper/319:04:519
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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