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2023-12-08 - 23:28
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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 rack4slot6.osadl.org (updated Fri Dec 08, 2023 12:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1335899379376,2cyclictest9-21ksoftirqd/007:10:070
1335899296293,2cyclictest9-21ksoftirqd/007:10:070
1338499283281,1cyclictest37-21ksoftirqd/407:10:074
1010752970,89pltrace0-21swapper/107:05:241
1303029662,11sleep20-21swapper/207:08:512
1010752860,81pltrace0-21swapper/507:05:155
1304327963,12sleep60-21swapper/607:09:046
1278327862,12sleep30-21swapper/307:05:413
1067127045,12sleep70-21swapper/707:05:057
391152690,0pltrace0-21swapper/107:47:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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