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2023-11-29 - 17:14
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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 rack0slot2.osadl.org (updated Wed Nov 29, 2023 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
210156725748,6sleep40-21swapper/407:03:054
210180625444,6sleep50-21swapper/507:06:275
21017632384,30sleep70-21swapper/707:05:497
210168222212,6sleep60-21swapper/607:04:436
2102141991814,3cyclictest4062018-21snmpd09:10:577
210213899160,16cyclictest0-21swapper/510:12:335
210213899160,16cyclictest0-21swapper/508:15:245
2102141991411,2cyclictest4062018-21snmpd11:31:257
210214199139,3cyclictest4062018-21snmpd11:37:077
210214199139,3cyclictest4062018-21snmpd10:11:557
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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