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2026-04-06 - 10:18
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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 20 highest latencies:
System rackcslot3.osadl.org (updated Mon Apr 06, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt10517-21if_err_eth021:20:271
81760rcu_preempt0-21swapper/023:09:090
81750rcu_preempt6822-21latency00:20:261
81740rcu_preempt27749-21idleruntime22:55:231
81710rcu_preempt23943-21ssh21:45:271
81710rcu_preempt0-21swapper/122:45:211
81710rcu_preempt0-21swapper/023:25:540
81710rcu_preempt0-21swapper/021:15:540
147650710irq/28-eth0-rx-0-21swapper/119:14:551
81700rcu_preempt8691-21munin-run00:25:070
81700rcu_preempt16119-21sh23:35:251
81700rcu_preempt0-21swapper/122:29:231
81700rcu_preempt0-21swapper/022:22:490
81700rcu_preempt0-21swapper/022:19:010
81700rcu_preempt0-21swapper/021:31:550
81700rcu_preempt0-21swapper/000:35:150
81700rcu_preempt0-21swapper/000:26:040
81700rcu_preempt0-21swapper/000:18:090
81690rcu_preempt7122-21diskmemload21:57:180
81690rcu_preempt0-21swapper/122:41:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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