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2024-11-22 - 10:20
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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 rack8slot4.osadl.org (updated Fri Nov 22, 2024 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20342052239178,20sleep10-21swapper/119:09:031
20320302225169,19sleep20-21swapper/219:05:432
20320342224172,16sleep60-21swapper/619:05:476
20341542222191,20sleep50-21swapper/519:08:195
20342732212182,19sleep70-21swapper/719:09:577
20341312212178,22sleep00-21swapper/019:08:060
20341622210183,17sleep40-21swapper/419:08:264
20320042209178,19sleep30-21swapper/319:05:193
203448299310,30cyclictest2151374-21debian-sa122:45:027
203446299310,3cyclictest2170455-21cron23:20:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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