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2026-08-20 - 06:57
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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 20, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81820rcu_preempt0-21swapper/119:54:521
81810rcu_preempt19-21ksoftirqd/123:21:021
81790rcu_preempt19-21ksoftirqd/121:37:271
81780rcu_preempt0-21swapper/100:38:281
81740rcu_preempt24668-21df_abs19:59:401
81720rcu_preempt29037-21ls22:54:411
81720rcu_preempt19-21ksoftirqd/123:02:461
81710rcu_preempt30285-21wc23:59:470
81710rcu_preempt0-21swapper/119:14:471
81710rcu_preempt0-21swapper/022:39:460
81710rcu_preempt0-21swapper/022:39:250
81710rcu_preempt0-21swapper/000:39:490
81710rcu_preempt0-21swapper/000:04:530
81700rcu_preempt13797-21ssh23:27:560
81700rcu_preempt0-21swapper/023:03:480
81700rcu_preempt0-21swapper/022:58:080
81700rcu_preempt0-21swapper/021:49:460
81690rcu_preempt25305-21munin-run21:44:250
81690rcu_preempt19-21ksoftirqd/122:25:031
81690rcu_preempt0-21swapper/023:39:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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