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2026-04-04 - 02:01
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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 Apr 03, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800rcu_preempt0-21swapper/112:20:071
81790rcu_preempt19-21ksoftirqd/111:50:171
81780rcu_preempt16024-21ssh12:14:231
81750rcu_preempt32309-21munin-run08:00:001
81750rcu_preempt31836-21sh11:40:331
81750rcu_preempt20898-21cyclictest09:35:210
81750rcu_preempt17650-21latency_hist09:10:001
81750rcu_preempt16713-21ssh11:12:551
81750rcu_preempt1153-21idleruntime-cro08:05:001
81750rcu_preempt0-21swapper/109:50:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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