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2025-12-05 - 23:17
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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 Dec 05, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81720rcu_preempt32243-21sshd07:05:120
81700rcu_preempt22769-1kworker/0:1H11:54:310
81690rcu_preempt0-21swapper/011:55:310
81690rcu_preempt0-21swapper/010:45:160
81690rcu_preempt0-21swapper/010:45:160
90050670irq/17-ehci_hcd22769-1kworker/0:1H11:32:090
81670rcu_preempt0-21swapper/111:16:121
81660rcu_preempt12640-21diskmemload09:40:370
81660rcu_preempt0-21swapper/111:05:251
81660rcu_preempt0-21swapper/109:35:071
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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