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2026-07-14 - 08:32
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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 Tue Jul 14, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89950900irq/17-ehci_hcd2192-21snmpd19:13:010
81820rcu_preempt0-21swapper/119:12:331
81810rcu_preempt8232-21ssh22:01:201
81800rcu_preempt4161-21sh21:53:181
81790rcu_preempt19-21ksoftirqd/122:08:071
146550790irq/30-eth0-tx-0-21swapper/121:26:411
81780rcu_preempt10408-1kworker/1:2H23:39:411
81780rcu_preempt0-21swapper/122:59:331
81770rcu_preempt20842-21ssh22:21:421
81770rcu_preempt0-21swapper/119:21:391
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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