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2026-05-06 - 09:08
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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 May 06, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81750rcu_preempt0-21swapper/119:09:051
81720rcu_preempt16974-21cut21:55:561
81710rcu_preempt3502-21fw_conntrack22:30:481
81710rcu_preempt0-21swapper/022:53:150
81700rcu_preempt0-21swapper/122:15:581
81700rcu_preempt0-21swapper/019:05:540
81690rcu_preempt12396-21ssh22:45:560
81690rcu_preempt0-21swapper/021:27:420
81680rcu_preempt8627-21ssh00:38:020
81680rcu_preempt11737-21ssh22:45:461
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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