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2025-04-02 - 08:18
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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 Wed Apr 02, 2025 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122922274239,23sleep10-21swapper/119:08:131
121392269235,22sleep30-21swapper/319:06:143
123902265214,17sleep20-21swapper/219:09:312
122562265232,21sleep00-21swapper/019:07:430
111312630,0sleep30-21swapper/323:38:393
257192570,0sleep20-21swapper/200:14:382
236322570,0sleep30-21swapper/321:50:163
62752560,0sleep00-21swapper/000:24:400
5992560,0sleep00-21swapper/023:30:510
137522560,0sleep00-21swapper/019:10:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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