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2025-09-19 - 07:18
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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 Fri Sep 19, 2025 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81850rcu_preempt0-21swapper/021:18:150
81840rcu_preempt18359-21ssh23:18:550
81800rcu_preempt0-21swapper/119:08:591
81750rcu_preempt18448-21diskmemload22:04:030
81740rcu_preempt28201-21idleruntime22:34:021
81740rcu_preempt28201-21idleruntime22:34:021
81730rcu_preempt26169-21df_inode23:33:580
81730rcu_preempt2552-21ssh23:49:490
81730rcu_preempt13045-21sh00:11:240
81730rcu_preempt13045-21sh00:11:240
81710rcu_preempt0-21swapper/022:39:120
81700rcu_preempt21110-21apt-get00:28:571
81700rcu_preempt0-21swapper/100:24:061
81700rcu_preempt0-21swapper/021:28:070
81700rcu_preempt0-21swapper/000:41:140
81690rcu_preempt0-21swapper/123:33:121
81690rcu_preempt0-21swapper/100:02:411
81690rcu_preempt0-21swapper/022:58:430
81690rcu_preempt0-21swapper/022:13:080
81690rcu_preempt0-21swapper/019:49:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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