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2026-03-20 - 12:15
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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 Fri Mar 20, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1568992323,0cyclictest30476-21fwupd22:59:421
1561992020,0cyclictest325-21hwrng21:06:210
1568991918,1cyclictest59550irq/125-lan21:45:121
1568991817,1cyclictest59550irq/125-lan22:45:131
1568991817,1cyclictest59550irq/125-lan22:30:161
1568991717,0cyclictest59550irq/125-lan23:45:161
1568991717,0cyclictest59550irq/125-lan21:13:311
1568991717,0cyclictest59550irq/125-lan20:40:121
1568991716,1cyclictest59550irq/125-lan23:00:101
1568991716,1cyclictest59550irq/125-lan20:20:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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