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2026-06-15 - 12:40
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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 Mon Jun 15, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81820rcu_preempt8584-1kworker/0:2H22:48:550
81810rcu_preempt6803-21cpuspeed19:49:081
81780rcu_preempt19-21ksoftirqd/123:07:481
81770rcu_preempt28125-21diskmemload23:50:041
81760rcu_preempt19-21ksoftirqd/122:40:361
81760rcu_preempt19-21ksoftirqd/122:13:401
81750rcu_preempt27643-21sh23:11:371
81750rcu_preempt0-21swapper/122:04:051
81740rcu_preempt12956-21rt-features23:44:201
81740rcu_preempt0-21swapper/023:27:320
81720rcu_preempt381-21sh23:21:351
81720rcu_preempt3000-21turbostat00:33:501
81720rcu_preempt0-21swapper/122:34:111
81720rcu_preempt0-21swapper/122:23:071
81720rcu_preempt0-21swapper/120:17:031
81720rcu_preempt0-21swapper/120:17:031
81710rcu_preempt23647-21mailstats00:04:220
81710rcu_preempt20158-21cpuspeed_turbos23:59:091
81710rcu_preempt0-21swapper/023:55:170
81710rcu_preempt0-21swapper/020:39:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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