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2024-04-16 - 19:32
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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 20 highest latencies:
System rack0slot4.osadl.org (updated Tue Apr 16, 2024 00:46:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3571132359313,36sleep70-21swapper/719:08:3613
3571132359313,36sleep70-21swapper/719:08:3613
3572002357309,15sleep80-21swapper/819:09:2514
3572002357309,15sleep80-21swapper/819:09:2514
3536302355309,14sleep50-21swapper/519:05:0311
3536302355309,14sleep50-21swapper/519:05:0311
3570872347302,15sleep30-21swapper/319:08:169
3570872347302,15sleep30-21swapper/319:08:169
3571392342317,16sleep40-21swapper/419:08:4910
3571392342317,16sleep40-21swapper/419:08:4910
3570642342318,15sleep140-21swapper/1419:07:536
3570642342318,15sleep140-21swapper/1419:07:536
3569862342318,15sleep150-21swapper/1519:06:517
3569862342318,15sleep150-21swapper/1519:06:517
3571622340317,14sleep20-21swapper/219:09:038
3571622340317,14sleep20-21swapper/219:09:038
3570062339312,18sleep10-21swapper/119:07:091
3570062339312,18sleep10-21swapper/119:07:091
3569202339316,14sleep110-21swapper/1119:05:593
3569202339316,14sleep110-21swapper/1119:05:593
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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