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2022-01-23 - 10:26

Intel(R) Core(TM) i5-8365UE CPU @ 1.60GHz, Linux 5.16.0-rt15 (Profile)

Latency plot of system in rack #e, slot #2
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -p90 -i200 -h400 -a2-3 -t2 -q done
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 10 highest latencies:
System rackeslot2.osadl.org (updated Wed Jan 19, 2022 12:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
561790170,14cyclictest0-21swapper/212:31:562
561790170,14cyclictest0-21swapper/210:36:522
5617901614,1cyclictest158672chrt09:22:212
561790160,14cyclictest0-21swapper/211:34:302
561790160,14cyclictest0-21swapper/209:39:582
561790160,14cyclictest0-21swapper/209:11:192
561790160,14cyclictest0-21swapper/208:42:092
561790160,14cyclictest0-21swapper/208:15:202
561790160,14cyclictest0-21swapper/208:13:552
561790160,14cyclictest0-21swapper/207:17:332
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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