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2026-03-28 - 01:41
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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 27, 2026 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81790rcu_preempt31015-21memory11:00:020
81780rcu_preempt8288-21apt-get07:09:511
81760rcu_preempt0-21swapper/111:04:581
81750rcu_preempt0-21swapper/010:28:490
81740rcu_preempt0-21swapper/112:16:371
81730rcu_preempt18930-21kernelversion09:35:040
81730rcu_preempt10915-21ls12:25:070
81730rcu_preempt0-21swapper/107:48:261
89850720irq/17-ehci_hcd0-21swapper/111:45:441
81720rcu_preempt6043-21ssh11:14:561
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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