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2026-04-10 - 04:08
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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 Apr 10, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89850810irq/17-ehci_hcd945-21usb-storage19:10:330
81780rcu_preempt31856-21head22:20:441
81780rcu_preempt19-21ksoftirqd/122:10:101
81780rcu_preempt19-21ksoftirqd/122:10:101
81780rcu_preempt0-21swapper/100:10:351
89850760irq/17-ehci_hcd171rcuc/123:39:501
81760rcu_preempt28291-21ssh22:15:191
81760rcu_preempt0-21swapper/121:25:431
81740rcu_preempt2870-21ssh00:35:391
81740rcu_preempt0-21swapper/122:51:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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