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2026-03-13 - 21:47
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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 10 highest latencies:
System rack8slot7.osadl.org (updated Fri Mar 13, 2026 12:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1396992780,278cyclictest325-21hwrng10:57:352
1393991918,1cyclictest59550irq/125-lan07:20:051
1393991818,0cyclictest59550irq/125-lan07:34:461
1393991817,1cyclictest59550irq/125-lan08:45:151
1393991717,0cyclictest59550irq/125-lan12:08:201
1393991717,0cyclictest59550irq/125-lan11:35:131
1393991717,0cyclictest59550irq/125-lan11:20:101
1393991717,0cyclictest59550irq/125-lan10:29:311
1393991716,1cyclictest59550irq/125-lan09:45:151
1393991716,1cyclictest59550irq/125-lan09:40:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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