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2026-03-18 - 12:02
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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 Wed Mar 18, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81790rcu_preempt19-21ksoftirqd/121:19:191
81780rcu_preempt0-21swapper/119:13:521
147850740irq/30-eth0-tx-945-21usb-storage21:54:121
89850700irq/17-ehci_hcd29616-21diskmemload22:18:411
81700rcu_preempt0-21swapper/023:19:350
81700rcu_preempt0-21swapper/023:00:440
81700rcu_preempt0-21swapper/022:10:290
81690rcu_preempt0-21swapper/123:44:411
81690rcu_preempt0-21swapper/122:58:011
81680rcu_preempt0-21swapper/100:21:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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