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2026-08-15 - 11:08
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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 Aug 15, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81790rcu_preempt17412-21if_can121:14:191
81780rcu_preempt0-21swapper/120:59:241
81770rcu_preempt0-21swapper/100:16:531
81760rcu_preempt0-21swapper/123:59:141
81750rcu_preempt19-21ksoftirqd/123:19:551
81750rcu_preempt19-21ksoftirqd/123:19:551
81750rcu_preempt0-21swapper/123:28:331
81750rcu_preempt0-21swapper/121:54:241
81730rcu_preempt25223-21ssh23:34:521
81730rcu_preempt24595-21latency_hist00:39:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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