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2024-09-07 - 15:26
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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 rack0slot8.osadl.org (updated Sat Sep 07, 2024 12:51:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
336514099390292390275,11cyclictest0-21swapper/509:03:0011
336514099390292390275,11cyclictest0-21swapper/509:03:0011
3365139993899090,389908cyclictest0-21swapper/408:38:0410
3365139993889430,0cyclictest0-21swapper/408:21:2910
336515099387456387451,2cyclictest0-21swapper/1407:54:586
336515199387363387359,2cyclictest0-21swapper/1507:54:587
336513899309234224889,84344cyclictest55-21ksoftirqd/309:14:109
336514799309217224873,84343cyclictest0-21swapper/1109:14:103
336514099297725297715,9cyclictest751ktimers/511:21:5011
3365140992895030,0cyclictest0-21swapper/508:43:5711
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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