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2026-08-08 - 00:02
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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 20 highest latencies:
System rackcslot3.osadl.org (updated Fri Aug 07, 2026 12:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89550820irq/17-ehci_hcd22431-21ssh11:48:430
81800rcu_preempt0-21swapper/011:24:580
81760rcu_preempt0-21swapper/107:14:011
81730rcu_preempt19-21ksoftirqd/110:29:031
81720rcu_preempt0-21swapper/009:43:460
81710rcu_preempt4458-21diskmemload09:28:540
81710rcu_preempt0-21swapper/012:11:100
81710rcu_preempt0-21swapper/011:33:420
81710rcu_preempt0-21swapper/011:16:540
81700rcu_preempt0-21swapper/007:53:430
81690rcu_preempt11459-21memory10:28:430
81690rcu_preempt0-21swapper/010:02:130
81670rcu_preempt4114-21ps09:13:450
81670rcu_preempt0-21swapper/109:25:361
81670rcu_preempt0-21swapper/107:28:491
81660rcu_preempt27268-21ssh10:58:341
81660rcu_preempt23712-21ssh10:51:431
81660rcu_preempt23617-1kworker/1:0H12:18:581
81660rcu_preempt16863-21fw_conntrack11:38:411
81660rcu_preempt0-21swapper/112:34:541
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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