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2024-11-22 - 10:06
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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 rack9slot2.osadl.org (updated Fri Nov 22, 2024 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24802316278,25sleep20-21swapper/22
27122308271,24sleep00-21swapper/00
25162279241,26sleep10-21swapper/11
292999265257,5cyclictest7420-21munin-run1
26552241205,24sleep30-21swapper/33
292599205199,4cyclictest7458-21sendmail0
293999183178,3cyclictest7457-21sendmail3
3174821540,3sleep0292599cyclictest0
2459421350,5sleep2293499cyclictest2
293499124118,4cyclictest7432-21apt-get2
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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