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2024-11-22 - 10:10
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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 rackbslot7.osadl.org (updated Fri Nov 22, 2024 00:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2137211420,61sleep12236-21grep19:05:281
172821046,15sleep20-21swapper/219:05:162
2721998846,32cyclictest26249-21cron20:19:351
2721998846,32cyclictest26249-21cron20:19:351
272099886,59cyclictest5196-21apt-get19:15:120
2720998841,9cyclictest0-21swapper/020:44:350
2720998633,18cyclictest0-21swapper/022:25:070
136662850,6sleep30-21swapper/323:02:533
136662850,6sleep30-21swapper/323:02:533
2721998438,38cyclictest31448-21sh21:44:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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