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2026-06-18 - 14:17
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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 Thu Jun 18, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811000rcu_preempt19-21ksoftirqd/121:22:331
181760ktimersoftd/128980-21cron19:14:101
81750rcu_preempt24336-21munin-run23:09:101
81720rcu_preempt25795-21kworker/0:219:12:250
81720rcu_preempt0-21swapper/022:04:230
81710rcu_preempt0-21swapper/020:19:260
81710rcu_preempt0-21swapper/020:19:260
81700rcu_preempt0-21swapper/122:54:211
81700rcu_preempt0-21swapper/021:54:230
81700rcu_preempt0-21swapper/000:41:480
89950690irq/17-ehci_hcd945-21usb-storage22:39:501
81690rcu_preempt16293-21latency_hist22:54:101
81690rcu_preempt0-21swapper/100:39:271
81690rcu_preempt0-21swapper/023:07:230
81690rcu_preempt0-21swapper/022:12:030
81680rcu_preempt0-21swapper/122:23:241
81680rcu_preempt0-21swapper/121:55:521
81670rcu_preempt0-21swapper/122:38:371
81670rcu_preempt0-21swapper/121:40:111
81670rcu_preempt0-21swapper/120:23:311
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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