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2024-11-22 - 17:11
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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 20 highest latencies:
System rack4slot6.osadl.org (updated Fri Nov 22, 2024 12:44:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4748521180,114pltrace0-21swapper/707:05:207
4748521030,95pltrace0-21swapper/307:06:423
753652980,96pltrace0-21swapper/207:10:012
760927561,10sleep10-21swapper/107:09:481
753652750,67pltrace0-21swapper/607:09:086
521827561,10sleep50-21swapper/507:05:105
729225945,10sleep00-21swapper/007:05:380
745525844,10sleep40-21swapper/407:07:574
2577852280,2pltrace0-21swapper/712:35:167
967552270,2pltrace0-21swapper/710:10:227
781199240,16cyclictest0-21swapper/010:19:330
781199240,16cyclictest0-21swapper/009:36:510
783599220,16cyclictest0-21swapper/609:03:316
753652220,0pltrace0-21swapper/707:10:047
1246352220,3pltrace0-21swapper/710:15:417
236152210,15pltrace4282-21open_files10:55:185
236152210,14pltrace3380-21diskstats10:55:131
783599200,19cyclictest0-21swapper/608:30:216
2360952190,3pltrace0-21swapper/710:35:177
7827991810,6cyclictest1028-13auditd08:39:594
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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