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2026-03-28 - 23:21
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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 Sat Mar 28, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89850810irq/17-ehci_hcd28732-21kworker/1:207:09:591
81740rcu_preempt30757-21ssh10:19:581
81740rcu_preempt1911-21timerandwakeup12:30:111
81720rcu_preempt8704-21sh11:40:500
81710rcu_preempt30081-21ssh11:20:061
81710rcu_preempt17515-21ssh10:55:230
81700rcu_preempt8594-21apt-get10:39:551
81700rcu_preempt8187-21sh12:43:530
81700rcu_preempt6325-21ssh11:36:480
81700rcu_preempt4841-21sh12:36:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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