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2026-03-16 - 08:59
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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 Mar 16, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81780rcu_preempt0-21swapper/019:11:030
81750rcu_preempt24079-21munin-run23:09:100
81740rcu_preempt28068-21diskmemload00:02:551
81720rcu_preempt4177-21ntp_states00:34:331
81720rcu_preempt15010-21diskmemload22:49:451
81710rcu_preempt9518-21ssh21:39:221
81710rcu_preempt14272-21ssh22:49:270
81710rcu_preempt0-21swapper/119:44:351
81710rcu_preempt0-21swapper/023:39:500
81710rcu_preempt0-21swapper/022:14:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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