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2025-09-18 - 12:07
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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 Thu Sep 18, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81770rcu_preempt22068-21grep00:29:021
81770rcu_preempt10948-21kworker/1:019:13:391
81760rcu_preempt0-21swapper/022:02:220
81750rcu_preempt18266-21users20:59:051
81730rcu_preempt9648-21/usr/sbin/munin20:28:581
81720rcu_preempt2670-21ssh22:47:520
81720rcu_preempt24008-21ssh22:24:270
81710rcu_preempt19747-21diskmemload23:08:590
81710rcu_preempt0-21swapper/121:58:561
81710rcu_preempt0-21swapper/019:52:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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