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2025-12-16 - 12:47
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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 Tue Dec 16, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800rcu_preempt9113-21k10sensors19:14:081
81780rcu_preempt0-21swapper/100:09:061
81740rcu_preempt3053-21/usr/sbin/munin21:53:591
81710rcu_preempt6001-21diskmemload22:59:060
81710rcu_preempt22058-21sh23:54:310
81710rcu_preempt0-21swapper/119:05:161
81700rcu_preempt16721-21ssh00:34:090
81700rcu_preempt0-21swapper/021:15:220
81690rcu_preempt16856-21apt-get22:13:550
81680rcu_preempt6133-21mailstats22:44:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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