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2025-12-03 - 17:37
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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 Dec 03, 2025 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81700rcu_preempt0-21swapper/020:50:000
81690rcu_preempt31958-21sh21:38:521
81690rcu_preempt0-21swapper/022:44:590
81680rcu_preempt15859-21diskmemload21:24:241
81680rcu_preempt0-21swapper/122:25:491
81680rcu_preempt0-21swapper/121:59:331
81680rcu_preempt0-21swapper/121:30:121
81680rcu_preempt0-21swapper/023:14:380
81680rcu_preempt0-21swapper/022:16:210
81670rcu_preempt28102-21/usr/sbin/munin19:50:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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