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2026-07-08 - 13:57
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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 Wed Jul 08, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
146650770irq/31-eth0-tx-10317-21ssh22:02:210
81730rcu_preempt11937-21missed_timers21:06:101
81720rcu_preempt17948-21apt-esm-hook23:11:041
81720rcu_preempt0-21swapper/120:10:501
81720rcu_preempt0-21swapper/119:11:451
81720rcu_preempt0-21swapper/022:26:170
81710rcu_preempt5501-21ssh23:43:370
81710rcu_preempt12306-21turbostat00:00:450
81710rcu_preempt0-21swapper/122:41:031
81710rcu_preempt0-21swapper/021:46:130
81700rcu_preempt0-21swapper/123:09:411
81700rcu_preempt0-21swapper/121:31:161
81700rcu_preempt0-21swapper/023:01:090
81700rcu_preempt0-21swapper/000:06:120
81690rcu_preempt13959-21apt-get21:16:031
81690rcu_preempt12922-21sh22:06:230
81690rcu_preempt0-21swapper/123:39:581
81690rcu_preempt0-21swapper/119:16:041
81690rcu_preempt0-21swapper/021:28:460
81680rcu_preempt937-21ntp_states22:41:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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