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2026-07-28 - 13:43
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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 Tue Jul 28, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81770rcu_preempt19-21ksoftirqd/100:18:461
81760rcu_preempt19-21ksoftirqd/123:24:561
81760rcu_preempt19-21ksoftirqd/122:54:281
81750rcu_preempt0-21swapper/119:15:521
146650750irq/31-eth0-tx-25764-21kworker/0:022:25:400
89950740irq/17-ehci_hcd2681-21ssh00:41:351
81730rcu_preempt19-21ksoftirqd/123:14:301
81730rcu_preempt19-21ksoftirqd/121:48:261
81720rcu_preempt20638-21diskmemload23:15:360
81710rcu_preempt4479-21ssh22:43:560
81710rcu_preempt26058-21ssh21:26:280
81710rcu_preempt0-21swapper/020:07:450
81710rcu_preempt0-21swapper/000:36:430
81700rcu_preempt20638-21diskmemload22:01:000
81700rcu_preempt19604-21df00:12:470
81700rcu_preempt0-21swapper/023:32:580
81700rcu_preempt0-21swapper/023:18:340
81700rcu_preempt0-21swapper/023:10:300
81700rcu_preempt0-21swapper/022:19:320
81700rcu_preempt0-21swapper/022:14:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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