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2025-11-22 - 00:04
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackcslot3.osadl.org (updated Fri Nov 21, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81880rcu_preempt0-21swapper/107:05:111
81690rcu_preempt0-21swapper/009:26:050
81670rcu_preempt6901-21sh12:06:050
81670rcu_preempt12301-21ssh09:22:260
81670rcu_preempt0-21swapper/009:58:460
81670rcu_preempt0-21swapper/009:32:190
90050660irq/17-ehci_hcd946-21usb-storage07:29:031
81660rcu_preempt0-21swapper/111:34:101
81660rcu_preempt0-21swapper/011:35:140
90050650irq/17-ehci_hcd0-21swapper/110:20:091
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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