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2025-12-12 - 05:17
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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 Fri Dec 12, 2025 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81730rcu_preempt0-21swapper/119:08:561
81720rcu_preempt14658-21munin-run21:59:401
81700rcu_preempt25625-21timerwakeupswit19:20:071
81680rcu_preempt11867-21ssh23:55:071
81680rcu_preempt0-21swapper/122:46:591
81680rcu_preempt0-21swapper/023:12:000
81680rcu_preempt0-21swapper/021:41:530
81670rcu_preempt0-21swapper/022:04:120
81670rcu_preempt0-21swapper/021:11:520
81660rcu_preempt5550-21open_files20:10:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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