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2026-07-23 - 02:36
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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 rack4slot4.osadl.org (updated Thu Jul 23, 2026 00:44:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71680rcu_preempt0-21swapper/100:43:011
71680rcu_preempt0-21swapper/100:43:011
71500rcu_preempt7167-1sort19:11:221
71500rcu_preempt7167-1sort19:11:221
71490rcu_preempt9779-1kworker/0:0H19:12:570
71490rcu_preempt9779-1kworker/0:0H19:12:570
71480rcu_preempt27139-1kworker/2:3H19:13:032
71480rcu_preempt27139-1kworker/2:3H19:13:032
1213599472cyclictest25192-21ntp_states21:24:311
1213599472cyclictest25192-21ntp_states21:24:311
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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