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2026-06-01 - 14:08
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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 Mon Jun 01, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81780rcu_preempt0-21swapper/022:51:490
81760rcu_preempt17431-21/usr/sbin/munin19:13:030
89950750irq/17-ehci_hcd0-21swapper/021:31:450
81720rcu_preempt0-21swapper/021:37:540
81710rcu_preempt0-21swapper/022:15:580
89950700irq/17-ehci_hcd945-21usb-storage00:07:101
81700rcu_preempt9506-21sh22:02:180
81700rcu_preempt0-21swapper/020:52:440
81700rcu_preempt0-21swapper/020:08:120
89950690irq/17-ehci_hcd945-21usb-storage21:55:200
81690rcu_preempt0-21swapper/022:44:510
81690rcu_preempt0-21swapper/000:32:180
81680rcu_preempt8348-21sh23:58:521
81680rcu_preempt0-21swapper/123:43:101
81680rcu_preempt0-21swapper/122:07:581
81680rcu_preempt0-21swapper/119:28:001
81680rcu_preempt0-21swapper/023:10:520
81680rcu_preempt0-21swapper/023:05:510
81670rcu_preempt0-21swapper/119:48:071
81660rcu_preempt27816-21switchtime19:53:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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