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2026-07-21 - 07:38
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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 Tue Jul 21, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800rcu_preempt29124-21idleruntime19:12:130
81770rcu_preempt0-21swapper/119:12:141
81720rcu_preempt11292-21sh00:31:310
81720rcu_preempt0-21swapper/021:36:560
81720rcu_preempt0-21swapper/019:57:130
81710rcu_preempt8176-21strings22:32:170
81710rcu_preempt0-21swapper/021:23:310
81710rcu_preempt0-21swapper/021:21:300
81710rcu_preempt0-21swapper/020:27:150
81700rcu_preempt3057-1kworker/0:2H22:47:000
81700rcu_preempt3057-1kworker/0:2H22:47:000
81700rcu_preempt0-21swapper/100:17:211
81700rcu_preempt0-21swapper/021:46:580
81700rcu_preempt0-21swapper/021:28:120
81700rcu_preempt0-21swapper/000:20:360
81690rcu_preempt9493-21ssh21:39:220
81690rcu_preempt16548-1kworker/0:0H00:03:580
81690rcu_preempt12844-21ssh22:41:220
81690rcu_preempt0-21swapper/121:27:381
81690rcu_preempt0-21swapper/100:46:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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