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2026-09-19 - 23:54
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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 Sat Sep 19, 2026 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81740rcu_preempt23376-21ssh12:05:111
81730rcu_preempt0-21swapper/112:28:201
147750730irq/28-eth0-rx-3-21ksoftirqd/007:05:240
81720rcu_preempt30960-21if_eth107:05:181
81710rcu_preempt21322-21/usr/sbin/munin09:55:191
81710rcu_preempt0-21swapper/111:45:451
81710rcu_preempt0-21swapper/111:15:151
81710rcu_preempt0-21swapper/110:05:151
81710rcu_preempt0-21swapper/010:35:150
81700rcu_preempt30844-21ssh12:19:591
81700rcu_preempt30844-21ssh12:19:591
81700rcu_preempt0-21swapper/111:00:321
81700rcu_preempt0-21swapper/109:26:331
81690rcu_preempt0-21swapper/112:37:431
81690rcu_preempt0-21swapper/110:43:391
81690rcu_preempt0-21swapper/108:44:591
81690rcu_preempt0-21swapper/011:21:450
81690rcu_preempt0-21swapper/009:55:240
81690rcu_preempt0-21swapper/008:50:200
81680rcu_preempt0-21swapper/011:28:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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