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2026-03-11 - 02:33
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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 Tue Mar 10, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81770rcu_preempt29536-21cyclictest08:09:150
81730rcu_preempt29804-21if_wlan012:19:150
81730rcu_preempt13520-21df11:49:101
81730rcu_preempt13520-21df11:49:101
81720rcu_preempt8834-21sh10:39:111
81720rcu_preempt20285-21sh12:00:541
81720rcu_preempt0-21swapper/012:11:500
81720rcu_preempt0-21swapper/008:19:200
81710rcu_preempt10885-21diskstats11:44:111
81710rcu_preempt0-21swapper/111:41:571
81710rcu_preempt0-21swapper/111:09:091
81710rcu_preempt0-21swapper/107:09:211
81710rcu_preempt0-21swapper/012:00:220
81710rcu_preempt0-21swapper/010:19:140
81710rcu_preempt0-21swapper/008:29:180
81700rcu_preempt13162-21kworker/0:210:34:020
81700rcu_preempt0-21swapper/109:04:181
81700rcu_preempt0-21swapper/010:27:000
81690rcu_preempt31532-1kworker/0:2H09:36:380
81690rcu_preempt0-21swapper/111:03:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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