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2026-07-07 - 13:57
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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 Tue Jul 07, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81880rcu_preempt4398-21ssh23:06:411
81770rcu_preempt19-21ksoftirqd/123:21:431
81750rcu_preempt19-21ksoftirqd/100:33:531
81720rcu_preempt7789-21ssh22:19:390
81710rcu_preempt0-21swapper/023:16:000
81710rcu_preempt0-21swapper/023:11:260
81710rcu_preempt0-21swapper/022:55:390
81700rcu_preempt23489-21ssh23:39:360
81700rcu_preempt0-21swapper/022:35:300
81700rcu_preempt0-21swapper/000:16:070
81690rcu_preempt0-21swapper/019:21:050
81680rcu_preempt6757-21ssh00:05:510
81680rcu_preempt1668-21sh22:09:250
81680rcu_preempt0-21swapper/021:52:570
89950670irq/17-ehci_hcd22274-21ssh22:43:021
81670rcu_preempt16909-21munin-run20:10:440
81670rcu_preempt0-21swapper/022:43:060
81660rcu_preempt0-21swapper/019:10:590
81650rcu_preempt27290-21df23:45:590
81640rcu_preempt3076-21ssh23:05:570
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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