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2026-04-11 - 00:10
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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 Fri Apr 10, 2026 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89450920irq/17-ehci_hcd111rcuc/007:50:350
81770rcu_preempt0-21swapper/110:20:421
81760rcu_preempt0-21swapper/110:16:161
81750rcu_preempt7360-21sh09:49:101
81750rcu_preempt21580-21diskmemload12:11:591
81750rcu_preempt0-21swapper/109:00:321
81740rcu_preempt2670-21latency_hist08:00:191
81740rcu_preempt12380-21sh09:57:551
81740rcu_preempt0-21swapper/111:40:261
81740rcu_preempt0-21swapper/110:50:441
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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