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2026-08-09 - 07:49
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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 Sun Aug 09, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81860rcu_preempt0-21swapper/123:51:521
81800rcu_preempt0-21swapper/119:13:481
81780rcu_preempt27088-21diskmemload00:13:531
81740rcu_preempt5989-21munin-run21:38:311
81740rcu_preempt32651-21ssh23:24:541
81730rcu_preempt27088-21diskmemload23:01:340
81720rcu_preempt28607-21apt-get23:18:431
81720rcu_preempt27088-21diskmemload22:55:410
81720rcu_preempt27088-21diskmemload21:24:410
81720rcu_preempt0-21swapper/022:53:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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