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2026-07-23 - 08:57
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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 rack8slot7.osadl.org (updated Thu Jul 23, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21673991817,1cyclictest59550irq/125-lan23:20:150
21673991817,1cyclictest59550irq/125-lan00:00:120
21673991717,0cyclictest59550irq/125-lan00:25:160
21673991717,0cyclictest59550irq/125-lan00:15:110
21673991716,1cyclictest59550irq/125-lan22:40:110
21673991716,1cyclictest59550irq/125-lan21:35:130
21673991716,1cyclictest59550irq/125-lan20:37:200
21673991716,1cyclictest59550irq/125-lan20:10:140
21673991716,1cyclictest59550irq/125-lan00:35:210
21673991616,0cyclictest59550irq/125-lan21:00:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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