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2026-08-13 - 09:44
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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 Thu Aug 13, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81780rcu_preempt4241-21diskmemload23:59:181
81750rcu_preempt5262-21df19:14:031
81750rcu_preempt19-21ksoftirqd/122:20:411
81730rcu_preempt12561-21timerandwakeup22:34:171
81720rcu_preempt704-21ssh00:19:070
81720rcu_preempt13034-21fw_conntrack23:39:080
81720rcu_preempt0-21swapper/020:04:030
81710rcu_preempt30785-21ssh22:09:041
81710rcu_preempt0-21swapper/100:19:041
81710rcu_preempt0-21swapper/023:34:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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