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2026-03-07 - 04:26
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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 Mar 06, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89850990irq/17-ehci_hcd171rcuc/111:29:121
147850980irq/30-eth0-tx-1864-21ssh11:13:221
81830rcu_preempt21237-21ssh09:47:141
81740rcu_preempt0-21swapper/010:27:560
81730rcu_preempt0-21swapper/107:11:571
81720rcu_preempt14705-21apache210:03:041
81710rcu_preempt31267-21apt-get12:08:571
81710rcu_preempt16082-21sh10:38:561
81700rcu_preempt5589-21ssh12:20:010
81700rcu_preempt0-21swapper/109:25:041
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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