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2026-08-28 - 17:00
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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 Aug 28, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81860rcu_preempt3-21ksoftirqd/011:21:330
81770rcu_preempt0-21swapper/107:17:301
81740rcu_preempt7018-21mailstats08:45:341
81740rcu_preempt14172-21/usr/sbin/munin11:25:341
81730rcu_preempt0-21swapper/110:50:541
81720rcu_preempt30188-21sh09:49:071
81710rcu_preempt32036-21vmstat08:15:371
81710rcu_preempt16800-21sh12:34:431
81710rcu_preempt0-21swapper/112:40:301
81710rcu_preempt0-21swapper/108:25:321
81710rcu_preempt0-21swapper/107:40:221
81710rcu_preempt0-21swapper/011:45:340
81710rcu_preempt0-21swapper/011:38:310
81710rcu_preempt0-21swapper/009:35:350
81690rcu_preempt14848-21diskmemload10:14:291
81690rcu_preempt0-21swapper/110:56:551
81690rcu_preempt0-21swapper/012:47:170
81690rcu_preempt0-21swapper/010:46:470
81690rcu_preempt0-21swapper/010:29:430
81680rcu_preempt19052-1kworker/1:1H07:49:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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