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2025-12-22 - 05:20
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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 Dec 22, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81720rcu_preempt21353-21sh23:49:330
81700rcu_preempt0-21swapper/020:35:480
81690rcu_preempt0-21swapper/120:25:441
81680rcu_preempt4261-21diskmemload00:15:250
81680rcu_preempt3899-21ssh21:31:081
81680rcu_preempt0-21swapper/121:35:481
81680rcu_preempt0-21swapper/020:00:360
81670rcu_preempt9174-21ssh00:22:460
81670rcu_preempt11095-21sh21:44:330
81670rcu_preempt0-21swapper/122:29:371
81670rcu_preempt0-21swapper/000:07:530
89850660irq/17-ehci_hcd945-21usb-storage00:30:411
81660rcu_preempt28796-21sh21:20:211
81660rcu_preempt26172-21df21:15:360
81660rcu_preempt0-21swapper/023:25:080
81660rcu_preempt0-21swapper/022:30:400
81660rcu_preempt0-21swapper/019:35:350
81650rcu_preempt21530-21/usr/sbin/munin21:05:211
81650rcu_preempt0-21swapper/121:40:351
81650rcu_preempt0-21swapper/121:26:511
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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