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2026-03-30 - 05:53
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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 Mon Mar 30, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt0-21swapper/119:11:201
81730rcu_preempt16780-21sh21:18:380
81720rcu_preempt17689-21ssh22:20:380
89850710irq/17-ehci_hcd19542-21ssh00:30:131
81710rcu_preempt0-21swapper/020:00:120
81710rcu_preempt0-21swapper/019:20:020
81710rcu_preempt0-21swapper/019:14:480
81700rcu_preempt12301-21ssh23:14:350
81690rcu_preempt22669-21sh21:30:050
81680rcu_preempt24538-21sh23:36:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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