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2026-08-10 - 08:14
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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 Mon Aug 10, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81910rcu_preempt5922-21ssh00:04:581
81770rcu_preempt19-21ksoftirqd/121:52:161
81740rcu_preempt19-21ksoftirqd/122:05:001
81720rcu_preempt0-21swapper/022:53:550
81710rcu_preempt0-21swapper/000:06:190
146250710irq/28-eth0-rx-12155-21apt-get19:13:471
81700rcu_preempt17827-21irqstats21:28:550
81700rcu_preempt0-21swapper/023:00:240
81700rcu_preempt0-21swapper/022:03:520
81700rcu_preempt0-21swapper/020:03:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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