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2026-06-08 - 22:02
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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 Mon Jun 08, 2026 12:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25652991918,1cyclictest59550irq/125-lan12:19:320
25652991918,1cyclictest59550irq/125-lan11:10:000
25652991818,0cyclictest59550irq/125-lan08:10:140
25652991817,1cyclictest59550irq/125-lan09:05:160
25652991817,1cyclictest59550irq/125-lan08:45:160
25652991717,0cyclictest59550irq/125-lan11:25:140
25652991717,0cyclictest59550irq/125-lan11:10:160
25652991717,0cyclictest59550irq/125-lan10:00:470
25652991717,0cyclictest59550irq/125-lan09:40:450
25652991717,0cyclictest59550irq/125-lan07:58:280
25652991716,1cyclictest59550irq/125-lan11:35:140
25652991716,1cyclictest59550irq/125-lan09:25:130
25652991716,1cyclictest59550irq/125-lan09:10:180
25652991716,1cyclictest59550irq/125-lan08:55:170
25652991616,0cyclictest59550irq/125-lan09:01:120
25652991616,0cyclictest59550irq/125-lan07:44:080
25652991616,0cyclictest59550irq/125-lan07:29:190
25652991615,1cyclictest59550irq/125-lan12:20:140
25652991615,1cyclictest59550irq/125-lan12:05:190
25652991615,1cyclictest59550irq/125-lan11:55:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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