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2026-07-25 - 17:02
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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 Sat Jul 25, 2026 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800rcu_preempt19-21ksoftirqd/109:40:331
81790rcu_preempt19846-21df11:22:331
81760rcu_preempt0-21swapper/111:17:451
89550750irq/17-ehci_hcd14908-21diskmemload10:21:190
81740rcu_preempt16289-21iwlist07:12:371
81740rcu_preempt0-21swapper/107:24:181
81730rcu_preempt23965-21ssh10:30:480
81730rcu_preempt14908-21diskmemload12:07:390
81730rcu_preempt0-21swapper/109:47:451
146650730irq/31-eth0-tx-0-21swapper/010:45:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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