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2026-07-05 - 15:11
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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 Sun Jul 05, 2026 12:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29658991817,1cyclictest59550irq/125-lan12:00:160
29658991817,1cyclictest59550irq/125-lan10:20:210
29658991817,1cyclictest59550irq/125-lan09:30:200
29658991817,1cyclictest59550irq/125-lan07:30:140
29658991717,0cyclictest59550irq/125-lan07:10:130
29658991716,1cyclictest59550irq/125-lan12:10:170
29658991716,1cyclictest59550irq/125-lan11:50:140
29658991716,1cyclictest59550irq/125-lan11:30:200
29658991716,1cyclictest59550irq/125-lan10:45:160
29658991716,1cyclictest59550irq/125-lan08:45:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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