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2026-07-26 - 18:51
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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 Jul 26, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81960rcu_preempt0-21swapper/110:49:511
81950rcu_preempt19-21ksoftirqd/111:52:411
81810rcu_preempt31176-21munin-run07:22:231
81800rcu_preempt29897-21munin-run07:17:231
81790rcu_preempt29019-1kworker/1:0H10:46:491
89950780irq/17-ehci_hcd945-21usb-storage08:47:201
89550770irq/17-ehci_hcd41ktimersoftd/007:13:300
81760rcu_preempt24792-21sh10:07:551
81760rcu_preempt24792-21sh10:07:551
81760rcu_preempt0-21swapper/107:52:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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