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2025-11-26 - 03:47
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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 Wed Nov 26, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt19-21ksoftirqd/121:37:161
81720rcu_preempt0-21swapper/119:05:091
81700rcu_preempt16084-21ssh22:11:090
81680rcu_preempt30369-1kworker/1:1H20:21:131
81680rcu_preempt14989-21sh00:14:430
81670rcu_preempt0-21swapper/123:39:481
81660rcu_preempt0-21swapper/121:00:161
81660rcu_preempt0-21swapper/000:09:040
81650rcu_preempt0-21swapper/122:31:311
81640rcu_preempt9857-21if_eth122:00:081
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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