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2026-06-29 - 17:35
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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 Jun 29, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800rcu_preempt23111-21kworker/1:007:10:321
146550790irq/30-eth0-tx-32276-21switchtime09:10:341
209299775cyclictest7775-21cat11:30:091
81760rcu_preempt0-21swapper/107:20:331
81750rcu_preempt0-21swapper/112:20:081
81740rcu_preempt4405-21smartctl07:20:330
81740rcu_preempt11329-21ntp_states11:35:320
81740rcu_preempt0-21swapper/008:15:280
81730rcu_preempt29089-21if_can009:00:270
81730rcu_preempt10685-21ntpq12:35:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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