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2025-12-27 - 16:31
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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 Dec 27, 2025 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81750rcu_preempt9446-21ls08:10:510
81740rcu_preempt0-21swapper/007:05:360
81700rcu_preempt23278-1kworker/0:0H10:09:340
81690rcu_preempt24934-21ssh09:10:511
81690rcu_preempt24452-21diskmemload11:47:530
81690rcu_preempt0-21swapper/111:41:181
81690rcu_preempt0-21swapper/010:50:530
81690rcu_preempt0-21swapper/010:45:570
81680rcu_preempt13850-21ssh09:45:581
81680rcu_preempt0-21swapper/007:20:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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