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2025-03-17 - 09:24
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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 rack4slot6.osadl.org (updated Mon Mar 17, 2025 00:44:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9806521420,56pltrace0-21swapper/719:05:107
19077521150,2pltrace0-21swapper/419:16:014
12594521080,100pltrace0-21swapper/519:10:015
1259452790,71pltrace0-21swapper/119:06:361
1256227662,10sleep60-21swapper/619:05:516
1047026550,11sleep30-21swapper/319:05:083
1254926147,10sleep20-21swapper/219:05:392
1254725844,10sleep00-21swapper/019:05:370
1281825743,10sleep40-21swapper/419:09:104
29142300,1sleep40-21swapper/400:15:154
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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