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2026-07-09 - 03:05
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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 Thu Jul 09, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811030rcu_preempt23513-21ssh00:02:000
81970rcu_preempt30115-21ssh23:18:351
89150940irq/17-ehci_hcd945-21usb-storage21:41:070
81730rcu_preempt10024-21ssh00:36:081
81730rcu_preempt0-21swapper/119:12:151
81720rcu_preempt4899-21if_can123:31:110
81720rcu_preempt3606-21apt-get20:06:090
81710rcu_preempt0-21swapper/122:10:101
81700rcu_preempt25855-21needreboot22:16:170
81700rcu_preempt21125-21diskmemload22:25:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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