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2026-09-20 - 07:09
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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 Sep 20, 2026 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89950730irq/17-ehci_hcd16463-21apt-get22:15:111
89950730irq/17-ehci_hcd16463-21apt-get22:15:111
81720rcu_preempt0-21swapper/022:35:180
81700rcu_preempt6963-21ntp_states21:55:221
81700rcu_preempt0-21swapper/023:10:140
81690rcu_preempt27916-21sh21:34:520
81690rcu_preempt15884-21df_inode19:05:141
81690rcu_preempt0-21swapper/023:00:000
81690rcu_preempt0-21swapper/000:30:400
81680rcu_preempt19703-21sh21:18:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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