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2025-11-25 - 01:51
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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 Mon Nov 24, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81710rcu_preempt17328-21ssh11:55:150
81690rcu_preempt22114-1kworker/1:1H12:22:391
81690rcu_preempt0-21swapper/108:40:171
81690rcu_preempt0-21swapper/010:28:230
151450690irq/28-eth0-rx-21793-21/usr/sbin/munin07:05:131
81680rcu_preempt0-21swapper/011:37:050
81680rcu_preempt0-21swapper/011:25:360
81680rcu_preempt0-21swapper/010:53:170
81670rcu_preempt15668-21if_eth108:50:070
81670rcu_preempt14169-21sh10:51:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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