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2026-06-03 - 16:55
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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 Wed Jun 03, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800rcu_preempt16236-21diskmemload11:33:081
81790rcu_preempt0-21swapper/007:42:490
81780rcu_preempt0-21swapper/007:08:150
81770rcu_preempt0-21swapper/112:27:571
81760rcu_preempt16236-21diskmemload09:48:191
81750rcu_preempt22045-21/usr/sbin/munin07:27:561
81740rcu_preempt0-21swapper/111:18:201
81730rcu_preempt30566-21ssh11:36:470
81730rcu_preempt26261-21sh09:28:471
81730rcu_preempt21590-21diskmemload09:21:311
81730rcu_preempt17421-1kworker/0:1H12:15:000
81730rcu_preempt12443-21munin-run08:57:561
81730rcu_preempt0-21swapper/110:51:401
81730rcu_preempt0-21swapper/109:45:171
81720rcu_preempt9505-21cron11:57:571
81720rcu_preempt14347-21ssh10:07:131
81710rcu_preempt26816-21processes07:43:211
81710rcu_preempt24855-21sh10:26:061
81710rcu_preempt19310-21ssh10:16:160
81710rcu_preempt19233-21ssh11:15:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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