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2025-05-09 - 05:52
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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 rackaslot8.osadl.org (updated Fri May 09, 2025 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
208462305271,21sleep20-21swapper/219:09:032
206362279246,20sleep30-21swapper/319:06:233
207662274239,23sleep10-21swapper/119:08:011
208342258224,22sleep00-21swapper/019:08:520
42992620,0sleep30-21swapper/323:08:483
129662590,1sleep20-21swapper/200:34:242
296842580,0sleep20-21swapper/221:49:042
39622390,0sleep00-21swapper/021:29:470
17452200,0sleep30-21swapper/321:51:523
116872190,0sleep10-21swapper/122:00:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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