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2026-05-24 - 17:33
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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 May 24, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81920rcu_preempt19-21ksoftirqd/112:32:211
146650820irq/31-eth0-tx-181ktimersoftd/111:34:051
81800rcu_preempt22137-21ntpq07:07:271
81760rcu_preempt0-21swapper/010:52:150
81710rcu_preempt0-21swapper/011:40:540
81710rcu_preempt0-21swapper/010:57:120
81710rcu_preempt0-21swapper/009:24:310
81710rcu_preempt0-21swapper/008:32:060
81700rcu_preempt0-21swapper/010:43:170
81700rcu_preempt0-21swapper/010:06:360
81690rcu_preempt0-21swapper/111:45:201
81690rcu_preempt0-21swapper/012:15:480
81680rcu_preempt0-21swapper/111:59:371
81680rcu_preempt0-21swapper/110:37:281
81680rcu_preempt0-21swapper/110:07:341
81680rcu_preempt0-21swapper/110:04:381
81670rcu_preempt31405-21cron07:47:050
81670rcu_preempt28596-21sh10:23:140
81670rcu_preempt0-21swapper/110:28:461
81670rcu_preempt0-21swapper/107:52:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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