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2026-04-15 - 01:10
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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 20 highest latencies:
System rack8slot7.osadl.org (updated Tue Apr 14, 2026 12:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21651991918,1cyclictest59550irq/125-lan10:43:093
21651991817,1cyclictest59550irq/125-lan11:05:143
21651991817,1cyclictest59550irq/125-lan10:30:163
21651991817,1cyclictest59550irq/125-lan07:45:223
21651991817,1cyclictest59550irq/125-lan07:40:163
21651991717,0cyclictest59550irq/125-lan11:51:103
21651991717,0cyclictest59550irq/125-lan09:07:083
21651991717,0cyclictest59550irq/125-lan07:58:053
21651991717,0cyclictest59550irq/125-lan07:28:063
21651991716,1cyclictest59550irq/125-lan12:10:103
21651991716,1cyclictest59550irq/125-lan10:10:213
21651991716,1cyclictest59550irq/125-lan09:40:203
21651991716,1cyclictest59550irq/125-lan09:00:113
21651991716,1cyclictest59550irq/125-lan08:45:203
21651991716,1cyclictest59550irq/125-lan08:20:133
21651991716,1cyclictest59550irq/125-lan08:00:213
21651991716,1cyclictest59550irq/125-lan07:20:153
21651991716,1cyclictest59550irq/125-lan07:10:153
21651991616,0cyclictest59550irq/125-lan12:03:083
21651991615,1cyclictest59550irq/125-lan12:15:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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