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2026-08-04 - 04:24
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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 Tue Aug 04, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81830rcu_preempt3-21ksoftirqd/023:48:240
81790rcu_preempt19-21ksoftirqd/119:48:241
146650770irq/31-eth0-tx-19-21ksoftirqd/100:28:121
146250760irq/28-eth0-rx-0-21swapper/119:13:101
81750rcu_preempt19-21ksoftirqd/100:18:101
81740rcu_preempt29472-21cyclictest23:47:111
81720rcu_preempt7026-21sh23:37:140
81720rcu_preempt6551-21ssh00:36:180
81720rcu_preempt0-21swapper/020:33:320
81710rcu_preempt0-21swapper/120:33:051
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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