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2026-08-07 - 00:00
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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 20 highest latencies:
System rackcslot3.osadl.org (updated Thu Aug 06, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81950rcu_preempt5540-21ssh09:21:520
81900rcu_preempt19-21ksoftirqd/109:42:341
89950750irq/17-ehci_hcd945-21usb-storage08:38:531
81750rcu_preempt0-21swapper/007:13:490
81740rcu_preempt13096-21ssh12:33:310
81730rcu_preempt30358-21ssh12:04:330
81720rcu_preempt0-21swapper/011:33:370
81720rcu_preempt0-21swapper/007:58:310
81710rcu_preempt14840-21ntp_states07:53:400
81710rcu_preempt0-21swapper/107:18:021
81710rcu_preempt0-21swapper/011:23:400
81710rcu_preempt0-21swapper/010:58:290
81710rcu_preempt0-21swapper/010:56:420
81700rcu_preempt3-21ksoftirqd/009:48:200
81700rcu_preempt29610-21users10:03:470
81700rcu_preempt0-21swapper/012:09:370
81700rcu_preempt0-21swapper/011:30:530
81700rcu_preempt0-21swapper/010:49:130
81700rcu_preempt0-21swapper/009:39:540
89950690irq/17-ehci_hcd945-21usb-storage11:08:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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