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2026-09-05 - 00:26
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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 Fri Sep 04, 2026 12:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22143994141,0cyclictest2549-21fwupd07:35:320
22143992121,0cyclictest59550irq/125-lan11:29:010
22143992018,2cyclictest59550irq/125-lan12:13:400
22143992018,2cyclictest59550irq/125-lan09:25:150
22143992016,3cyclictest59550irq/125-lan10:29:470
22143991918,1cyclictest59550irq/125-lan12:15:130
22143991918,1cyclictest59550irq/125-lan10:15:140
22143991918,1cyclictest59550irq/125-lan09:42:320
22143991917,2cyclictest59550irq/125-lan11:40:460
22143991917,2cyclictest59550irq/125-lan11:30:180
22143991917,2cyclictest59550irq/125-lan11:24:210
22143991917,2cyclictest59550irq/125-lan10:45:290
22143991917,2cyclictest59550irq/125-lan09:59:450
22143991917,2cyclictest59550irq/125-lan09:50:420
22143991917,2cyclictest59550irq/125-lan08:00:150
22143991917,2cyclictest59550irq/125-lan07:25:130
22143991917,2cyclictest59550irq/125-lan07:10:160
22143991917,1cyclictest59550irq/125-lan11:16:330
22143991917,1cyclictest59550irq/125-lan10:30:110
22143991916,3cyclictest59550irq/125-lan10:05:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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