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2026-09-20 - 14:43
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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 Sep 20, 2026 12:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30410994141,0cyclictest12259-21fwupd07:43:241
30402991918,1cyclictest59550irq/125-lan12:37:260
30402991918,1cyclictest59550irq/125-lan12:29:450
30402991918,1cyclictest59550irq/125-lan12:18:240
30402991918,1cyclictest59550irq/125-lan11:17:440
30402991918,1cyclictest59550irq/125-lan10:10:170
30402991918,1cyclictest59550irq/125-lan09:48:390
30402991918,1cyclictest59550irq/125-lan09:20:150
30402991918,1cyclictest59550irq/125-lan08:00:170
30402991917,1cyclictest59550irq/125-lan10:30:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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