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2026-06-20 - 05:44
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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 Sat Jun 20, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811060rcu_preempt3-21ksoftirqd/022:35:560
81880rcu_preempt0-21swapper/119:09:371
81760rcu_preempt0-21swapper/000:32:280
81730rcu_preempt7860-21df20:09:341
81730rcu_preempt16264-21cpuspeed_turbos22:59:341
81720rcu_preempt6954-21ssh23:42:150
81720rcu_preempt0-21swapper/022:04:210
81710rcu_preempt0-21swapper/123:38:211
81700rcu_preempt24040-21diskmemload22:02:161
81700rcu_preempt0-21swapper/100:24:391
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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