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2026-08-11 - 20:21
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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 Aug 11, 2026 12:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13448991817,1cyclictest59550irq/125-lan12:02:340
13448991817,1cyclictest59550irq/125-lan10:55:160
13448991817,1cyclictest59550irq/125-lan08:00:170
13448991716,1cyclictest59550irq/125-lan12:05:200
13448991716,1cyclictest59550irq/125-lan11:45:150
13448991716,1cyclictest59550irq/125-lan11:19:270
13448991616,0cyclictest59550irq/125-lan11:05:160
13448991616,0cyclictest59550irq/125-lan10:05:230
13448991616,0cyclictest59550irq/125-lan09:53:150
13448991616,0cyclictest59550irq/125-lan09:28:320
13448991616,0cyclictest59550irq/125-lan07:30:140
13448991615,1cyclictest59550irq/125-lan12:20:170
13448991615,1cyclictest59550irq/125-lan12:15:170
13448991615,1cyclictest59550irq/125-lan11:50:210
13448991615,1cyclictest59550irq/125-lan11:25:140
13448991615,1cyclictest59550irq/125-lan10:25:150
13448991615,1cyclictest59550irq/125-lan09:35:010
13448991615,1cyclictest59550irq/125-lan09:05:120
13448991615,1cyclictest59550irq/125-lan08:25:140
13448991615,1cyclictest59550irq/125-lan08:15:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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