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2026-09-08 - 03:13
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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 Sep 08, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7504992020,0cyclictest59550irq/125-lan23:32:300
7504991918,1cyclictest59550irq/125-lan23:54:290
7504991918,1cyclictest59550irq/125-lan23:54:290
7504991918,1cyclictest59550irq/125-lan23:35:130
7504991918,1cyclictest59550irq/125-lan21:19:110
7504991916,2cyclictest59550irq/125-lan22:40:110
7504991818,0cyclictest59550irq/125-lan23:21:520
7504991818,0cyclictest59550irq/125-lan23:14:420
7504991818,0cyclictest59550irq/125-lan21:43:170
7504991818,0cyclictest59550irq/125-lan00:17:420
7504991817,1cyclictest59550irq/125-lan23:47:530
7504991817,1cyclictest59550irq/125-lan23:40:360
7504991817,1cyclictest59550irq/125-lan23:16:000
7504991817,1cyclictest59550irq/125-lan23:01:140
7504991817,1cyclictest59550irq/125-lan22:57:270
7504991817,1cyclictest59550irq/125-lan22:45:310
7504991817,1cyclictest59550irq/125-lan22:39:500
7504991817,1cyclictest59550irq/125-lan22:33:000
7504991817,1cyclictest59550irq/125-lan22:20:390
7504991817,1cyclictest59550irq/125-lan22:12:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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