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2026-06-21 - 09:09
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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 Sun Jun 21, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81790rcu_preempt3-21ksoftirqd/000:09:520
81750rcu_preempt15159-21latency_hist19:59:251
81750rcu_preempt0-21swapper/021:56:280
81740rcu_preempt10042-21latency_hist21:29:251
81720rcu_preempt3346-21ssh00:19:400
81720rcu_preempt0-21swapper/000:39:500
81710rcu_preempt27251-21sh00:00:451
81710rcu_preempt2192-21snmpd19:10:451
81710rcu_preempt20094-21ssh22:47:520
81710rcu_preempt0-21swapper/123:29:411
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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