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2026-07-18 - 02:14
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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 Jul 17, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81820rcu_preempt0-21swapper/012:32:090
81800rcu_preempt13980-21cpuspeed_turbos10:36:521
81790rcu_preempt0-21swapper/110:41:551
81760rcu_preempt27082-21munin-run08:41:370
81760rcu_preempt0-21swapper/112:27:071
81760rcu_preempt0-21swapper/107:14:481
81730rcu_preempt27533-21munin-run10:01:370
81720rcu_preempt25609-21sh10:58:340
81710rcu_preempt24098-21ssh12:01:490
81710rcu_preempt0-21swapper/011:53:140
81710rcu_preempt0-21swapper/011:26:500
81710rcu_preempt0-21swapper/011:22:010
81710rcu_preempt0-21swapper/010:47:030
89950700irq/17-ehci_hcd0-21swapper/009:37:440
81700rcu_preempt16948-21diskstats11:46:550
81700rcu_preempt0-21swapper/010:25:060
81690rcu_preempt5378-21sh09:18:090
81690rcu_preempt18570-21sh10:44:570
81690rcu_preempt13082-21sshd12:41:430
81690rcu_preempt0-21swapper/010:11:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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