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2026-06-19 - 14:46
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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 Fri Jun 19, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811250rcu_preempt19-21ksoftirqd/121:29:311
81890rcu_preempt8343-21/usr/sbin/munin22:24:381
81780rcu_preempt4349-21sshd19:11:231
81780rcu_preempt4349-21sshd19:11:231
81780rcu_preempt28436-21cron20:49:151
81780rcu_preempt2378-21diskmemload00:18:131
81770rcu_preempt19-21ksoftirqd/122:10:001
81740rcu_preempt2378-21diskmemload22:03:440
81730rcu_preempt21723-21ssh21:49:151
81730rcu_preempt19-21ksoftirqd/122:18:091
81720rcu_preempt32221-21diskmemload22:08:221
81720rcu_preempt27720-21strings22:59:371
81720rcu_preempt0-21swapper/121:29:151
81720rcu_preempt0-21swapper/119:29:331
81710rcu_preempt19-21ksoftirqd/123:10:451
81710rcu_preempt11139-21ssh23:29:351
81710rcu_preempt0-21swapper/121:19:291
81700rcu_preempt7711-21sh21:23:080
81700rcu_preempt0-21swapper/123:29:101
81700rcu_preempt0-21swapper/120:24:281
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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