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2026-04-01 - 12:50
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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 10 highest latencies:
System rackcslot3.osadl.org (updated Wed Apr 01, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89850970irq/17-ehci_hcd23711-21irqstats19:10:120
81810rcu_preempt1599migration/000:38:010
81810rcu_preempt13555-21/usr/sbin/munin23:00:221
81780rcu_preempt19-21ksoftirqd/122:20:571
81770rcu_preempt0-21swapper/119:10:171
81760rcu_preempt19-21ksoftirqd/122:38:371
81760rcu_preempt19-21ksoftirqd/122:33:131
81720rcu_preempt15169-21rm00:07:250
81710rcu_preempt25640-21munin-run19:19:530
81710rcu_preempt0-21swapper/121:17:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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