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2026-06-01 - 01:33
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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 Sun May 31, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81810rcu_preempt0-21swapper/011:19:130
146650810irq/31-eth0-tx-20611-21ssh09:45:360
89550730irq/17-ehci_hcd2830-21/usr/sbin/munin07:07:571
81710rcu_preempt0-21swapper/011:51:300
81710rcu_preempt0-21swapper/010:32:420
81700rcu_preempt17623-21sh09:39:420
81700rcu_preempt0-21swapper/011:52:420
81700rcu_preempt0-21swapper/009:57:590
81700rcu_preempt0-21swapper/007:43:070
81690rcu_preempt0-21swapper/011:13:070
81690rcu_preempt0-21swapper/009:14:410
81680rcu_preempt9300-21sh09:24:310
81680rcu_preempt16350-21munin-run08:02:410
81680rcu_preempt0-21swapper/012:02:200
89950670irq/17-ehci_hcd3211-1kworker/0:1H09:21:170
81670rcu_preempt6610-21ssh11:19:151
81670rcu_preempt16872-21ssh12:38:120
81670rcu_preempt0-21swapper/110:02:251
81660rcu_preempt0-21swapper/112:25:391
81660rcu_preempt0-21swapper/111:26:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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