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2023-09-24 - 00:16
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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 rack0slot3.osadl.org (updated Sat Sep 23, 2023 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14379832377371,4sleep20-21swapper/207:07:598
14379832377371,4sleep20-21swapper/207:07:588
14348342362356,4sleep90-21swapper/907:05:0915
14348342362356,4sleep90-21swapper/907:05:0915
14371012351343,5sleep110-21swapper/1107:05:273
14371012351343,5sleep110-21swapper/1107:05:263
14377862349311,31sleep10-21swapper/107:05:321
14377862349311,31sleep10-21swapper/107:05:321
14378032348305,13sleep00-21swapper/007:05:480
14378032348305,13sleep00-21swapper/007:05:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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