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2026-08-21 - 15:47
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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 Aug 21, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81770rcu_preempt28780-21sh09:52:311
81770rcu_preempt18407-21ssh09:32:281
81750rcu_preempt5326-21sh12:15:031
89950740irq/17-ehci_hcd945-21usb-storage12:19:471
81740rcu_preempt6823-21mailstats11:14:581
89950730irq/17-ehci_hcd14410-1kworker/1:1H10:39:341
89550720irq/17-ehci_hcd26200-21if_eth108:09:530
81720rcu_preempt27477-21ssh11:55:070
81720rcu_preempt27255-21df_abs08:14:471
81720rcu_preempt0-21swapper/111:24:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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