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2026-05-08 - 12:03
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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 Fri May 08, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81770rcu_preempt0-21swapper/100:33:491
81760rcu_preempt19-21ksoftirqd/123:54:531
81740rcu_preempt19174-21ssh23:06:081
81730rcu_preempt4757-21munin-run20:20:421
81700rcu_preempt12496-1kworker/1:1H23:28:101
81700rcu_preempt0-21swapper/123:56:321
81690rcu_preempt5801-21ntp_states23:41:050
81690rcu_preempt416-21sh00:33:430
81690rcu_preempt0-21swapper/123:46:091
81690rcu_preempt0-21swapper/123:35:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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