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2026-09-05 - 23:45
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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 Sat Sep 05, 2026 12:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8977992018,1cyclictest59550irq/125-lan10:17:050
8977992018,1cyclictest59550irq/125-lan10:05:170
8977992018,1cyclictest59550irq/125-lan09:36:150
8977991919,0cyclictest59550irq/125-lan11:27:090
8977991918,1cyclictest59550irq/125-lan10:37:110
8977991918,1cyclictest59550irq/125-lan09:15:120
8977991917,1cyclictest59550irq/125-lan12:33:150
8977991917,1cyclictest59550irq/125-lan10:34:190
8977991917,1cyclictest59550irq/125-lan09:48:010
8977991818,0cyclictest59550irq/125-lan12:01:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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