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2026-04-27 - 09:54
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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 20 highest latencies:
System rack8slot7.osadl.org (updated Mon Apr 27, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26924991817,1cyclictest59550irq/125-lan23:30:130
26924991817,1cyclictest59550irq/125-lan23:20:130
26924991817,1cyclictest59550irq/125-lan23:10:130
26924991817,1cyclictest59550irq/125-lan22:40:160
26924991817,1cyclictest59550irq/125-lan22:10:120
26924991817,1cyclictest59550irq/125-lan21:55:130
26924991716,1cyclictest59550irq/125-lan22:30:200
26924991716,1cyclictest59550irq/125-lan21:10:110
26924991716,1cyclictest59550irq/125-lan00:05:120
26924991715,1cyclictest59550irq/125-lan22:52:400
26924991616,0cyclictest59550irq/125-lan23:52:320
26924991616,0cyclictest59550irq/125-lan23:37:090
26924991616,0cyclictest59550irq/125-lan21:25:010
26924991616,0cyclictest59550irq/125-lan21:00:150
26924991616,0cyclictest59550irq/125-lan19:55:320
26924991615,1cyclictest59550irq/125-lan23:25:140
26924991615,1cyclictest59550irq/125-lan20:40:150
26924991615,1cyclictest59550irq/125-lan19:45:110
26924991615,1cyclictest59550irq/125-lan19:10:150
26924991515,0cyclictest59550irq/125-lan23:46:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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