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2026-03-29 - 13:05
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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 Sun Mar 29, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81830rcu_preempt0-21swapper/019:10:120
81740rcu_preempt686-21ssh22:15:490
81730rcu_preempt2251-21sh21:18:020
81730rcu_preempt2251-21sh21:18:020
81720rcu_preempt32761-21ssh00:23:270
81710rcu_preempt25904-21ssh22:03:020
81710rcu_preempt21200-21ssh23:59:400
81710rcu_preempt12489-21ssh23:40:540
81710rcu_preempt0-21swapper/123:19:591
81710rcu_preempt0-21swapper/119:20:011
81710rcu_preempt0-21swapper/119:10:051
81700rcu_preempt7269-21ssh21:26:310
81700rcu_preempt22669-21fw_conntrack20:35:010
81700rcu_preempt10328-21sh21:33:331
81700rcu_preempt0-21swapper/021:56:060
81700rcu_preempt0-21swapper/021:29:590
81700rcu_preempt0-21swapper/020:15:040
81690rcu_preempt14922-1kworker/0:0H23:21:510
81690rcu_preempt0-21swapper/121:51:011
81680rcu_preempt29689-21irqstats22:10:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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