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2026-03-24 - 00:55
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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 Mon Mar 23, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81940rcu_preempt1600-21ssh09:49:451
81750rcu_preempt0-21swapper/011:23:360
81740rcu_preempt19-21ksoftirqd/109:45:121
89850720irq/17-ehci_hcd945-21usb-storage09:57:511
81710rcu_preempt0-21swapper/011:59:490
81710rcu_preempt0-21swapper/011:45:400
81710rcu_preempt0-21swapper/011:04:470
81710rcu_preempt0-21swapper/011:04:470
81710rcu_preempt0-21swapper/009:39:530
147650710irq/28-eth0-rx-0-21swapper/107:12:551
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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