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2026-06-22 - 16:04
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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 Mon Jun 22, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81750rcu_preempt19-21ksoftirqd/110:09:401
81740rcu_preempt7508-21ssh10:34:570
81720rcu_preempt1339-21apt-get10:24:440
81710rcu_preempt3306-21ntp_kernel_pll_07:34:540
81710rcu_preempt0-21swapper/010:09:470
81700rcu_preempt11518-21apt-get11:44:430
81690rcu_preempt3164-21sh09:27:150
81690rcu_preempt27778-21diskmemload12:13:590
81690rcu_preempt14237-21diskmemload10:48:510
81690rcu_preempt0-21swapper/010:52:490
81690rcu_preempt0-21swapper/007:29:570
81680rcu_preempt0-21swapper/109:04:531
81680rcu_preempt0-21swapper/012:00:390
81680rcu_preempt0-21swapper/007:27:180
81670rcu_preempt30463-21ssh09:19:000
81670rcu_preempt0-21swapper/111:20:521
81670rcu_preempt0-21swapper/012:40:060
81670rcu_preempt0-21swapper/012:18:300
81670rcu_preempt0-21swapper/010:32:530
81670rcu_preempt0-21swapper/009:07:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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