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2023-09-28 - 11:57
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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 rack0slot6.osadl.org (updated Thu Sep 28, 2023 00:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
272083599391391,0cyclictest0-21swapper/319:29:599
27202992371331,13sleep70-21swapper/719:06:2613
27204432365325,13sleep60-21swapper/619:08:3312
27203592361323,13sleep120-21swapper/1219:07:184
27204872358321,30sleep140-21swapper/1419:09:146
27204052358318,13sleep50-21swapper/519:07:5911
27203922351330,14sleep90-21swapper/919:07:4715
27204202348328,13sleep20-21swapper/219:08:138
27202632348327,14sleep80-21swapper/819:05:5414
27205072347326,14sleep150-21swapper/1519:09:307
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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