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2025-12-06 - 10:43
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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 Sat Dec 06, 2025 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81820rcu_preempt12965-21memory22:20:071
81810rcu_preempt28321-21munin-run21:49:431
81720rcu_preempt0-21swapper/120:30:041
81680rcu_preempt1937-21sh00:00:140
81680rcu_preempt18501-21sh00:34:360
81670rcu_preempt19-21ksoftirqd/122:59:361
81660rcu_preempt32162-21ssh22:55:090
81660rcu_preempt19627-21ntp_states19:50:050
81650rcu_preempt24917-21ssh23:44:321
81650rcu_preempt0-21swapper/123:11:081
81650rcu_preempt0-21swapper/119:45:011
81650rcu_preempt0-21swapper/119:04:591
81640rcu_preempt17869-21df_abs19:44:580
81630rcu_preempt0-21swapper/021:36:130
81620rcu_preempt32284-21kworker/0:219:04:590
81620rcu_preempt21944-21cut20:00:030
81620rcu_preempt0-21swapper/123:36:241
81620rcu_preempt0-21swapper/122:48:021
81620rcu_preempt0-21swapper/120:44:591
81620rcu_preempt0-21swapper/100:13:541
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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