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2026-04-27 - 11:23
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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 Apr 27, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89850830irq/17-ehci_hcd945-21usb-storage19:12:430
81780rcu_preempt0-21swapper/119:13:341
81740rcu_preempt32139-21/usr/sbin/munin20:21:031
81730rcu_preempt24734-21sh21:33:570
81730rcu_preempt19-21ksoftirqd/122:43:091
81720rcu_preempt0-21swapper/121:31:251
81710rcu_preempt0-21swapper/122:01:171
81710rcu_preempt0-21swapper/000:11:520
81700rcu_preempt16309-21sh23:12:340
81700rcu_preempt0-21swapper/123:50:181
81700rcu_preempt0-21swapper/123:15:511
81700rcu_preempt0-21swapper/121:01:221
81700rcu_preempt0-21swapper/120:01:271
81700rcu_preempt0-21swapper/021:46:090
81690rcu_preempt32696-21apt-get00:41:181
81690rcu_preempt19484-21sh21:25:130
81690rcu_preempt14714-21ps21:16:261
81690rcu_preempt0-21swapper/123:44:531
81690rcu_preempt0-21swapper/123:40:071
81690rcu_preempt0-21swapper/122:59:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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