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2026-07-07 - 02:07
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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 Jul 06, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811120rcu_preempt19-21ksoftirqd/112:16:061
81940rcu_preempt4573-21diskmemload11:22:291
81850rcu_preempt0-21swapper/107:14:591
81750rcu_preempt6874-21df_abs07:16:000
89950710irq/17-ehci_hcd945-21usb-storage12:41:421
81710rcu_preempt29663-21ssh09:56:540
81710rcu_preempt0-21swapper/011:31:260
81710rcu_preempt0-21swapper/011:27:410
81710rcu_preempt0-21swapper/010:20:560
81710rcu_preempt0-21swapper/008:05:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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