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2026-08-19 - 14:39
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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 Aug 19, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81990rcu_preempt32766-21ssh23:06:450
81970rcu_preempt3-21ksoftirqd/000:24:370
81750rcu_preempt30278-21apt-get21:59:321
81730rcu_preempt3003-21apt-get22:09:351
81720rcu_preempt0-21swapper/021:49:330
81710rcu_preempt19108-1kworker/0:2H22:03:570
81710rcu_preempt0-21swapper/023:18:060
89950700irq/17-ehci_hcd945-21usb-storage23:12:051
81700rcu_preempt5600-21sh00:21:541
81700rcu_preempt16805-21ssh21:32:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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