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2026-05-01 - 17:31
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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 Fri May 01, 2026 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81900rcu_preempt0-21swapper/110:18:521
81760rcu_preempt9965-21ssh11:48:111
81740rcu_preempt9959-21ssh09:59:381
81740rcu_preempt6734-21ssh10:47:451
81740rcu_preempt0-21swapper/107:08:191
81730rcu_preempt28364-21apt-get11:25:201
81730rcu_preempt0-21swapper/011:06:420
81710rcu_preempt31030-21munin-run12:25:101
81700rcu_preempt14270-21cyclictest10:58:541
81700rcu_preempt0-21swapper/107:10:091
81690rcu_preempt15453-21ssh11:57:381
81680rcu_preempt27711-21apt-get09:35:211
81680rcu_preempt25344-21sh12:15:121
81680rcu_preempt0-21swapper/111:50:341
81680rcu_preempt0-21swapper/111:00:291
81670rcu_preempt3548-21sh11:36:370
81670rcu_preempt22681-21idleruntime12:10:261
81670rcu_preempt0-21swapper/112:35:321
81670rcu_preempt0-21swapper/110:36:271
81670rcu_preempt0-21swapper/008:40:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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