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2025-12-09 - 17:18
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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
Characteristics of the 20 highest latencies:
System rack7slot0.osadl.org (updated Tue Dec 09, 2025 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
110050650,0irq/25-eth00-21swapper/307:05:223
110050640,0irq/25-eth00-21swapper/107:09:071
110050560,0irq/25-eth00-21swapper/207:06:582
2952224622,0sleep00-21swapper/007:06:430
29861992311,0cyclictest0-21swapper/211:32:152
2986199197,0cyclictest0-21swapper/210:19:242
29860991817,0cyclictest0-21swapper/110:57:571
29862991712,0cyclictest0-21swapper/309:38:163
29861991710,0cyclictest0-21swapper/211:56:492
2986099179,0cyclictest0-21swapper/111:51:151
2986299167,0cyclictest0-21swapper/311:57:123
2986199169,0cyclictest0-21swapper/211:51:032
2986199168,0cyclictest0-21swapper/210:04:532
29860991614,0cyclictest19666-21bash09:34:501
2986099160,0cyclictest26873-21rm11:08:311
110050160,0irq/25-eth00-21swapper/309:41:063
2986299158,0cyclictest0-21swapper/310:03:093
29862991512,0cyclictest28969-21sshd11:05:253
29862991512,0cyclictest0-21swapper/310:34:093
2986299150,0cyclictest12709-21bash10:50:553
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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