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2025-10-14 - 13:29
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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 Tue Oct 14, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt19-21ksoftirqd/100:05:221
81750rcu_preempt19-21ksoftirqd/123:14:341
81750rcu_preempt19-21ksoftirqd/122:44:421
81720rcu_preempt21101-21sh22:17:490
81720rcu_preempt17721-21ssh22:10:570
81720rcu_preempt0-21swapper/023:15:040
81720rcu_preempt0-21swapper/020:30:060
81710rcu_preempt0-21swapper/023:04:470
81710rcu_preempt0-21swapper/021:36:090
81710rcu_preempt0-21swapper/021:25:120
81710rcu_preempt0-21swapper/020:50:080
81710rcu_preempt0-21swapper/019:15:070
81710rcu_preempt0-21swapper/000:14:580
81700rcu_preempt0-21swapper/019:20:100
81690rcu_preempt24430-21sh22:24:500
81690rcu_preempt13728-21users20:40:150
81690rcu_preempt0-21swapper/023:30:100
81690rcu_preempt0-21swapper/022:51:040
81690rcu_preempt0-21swapper/022:05:040
81690rcu_preempt0-21swapper/000:20:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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