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2025-11-01 - 00:26
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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 Fri Oct 31, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81920rcu_preempt0-21swapper/111:13:061
81850rcu_preempt14324-21ssh11:02:120
81760rcu_preempt0-21swapper/107:14:251
81760rcu_preempt0-21swapper/009:48:420
81710rcu_preempt31580-21sshd08:00:060
81710rcu_preempt0-21swapper/009:25:580
81710rcu_preempt0-21swapper/008:15:540
81700rcu_preempt0-21swapper/011:38:460
81700rcu_preempt0-21swapper/011:25:500
81680rcu_preempt16014-21/usr/sbin/munin11:05:540
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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