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2025-11-26 - 16:09
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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 10 highest latencies:
System rackcslot3.osadl.org (updated Wed Nov 26, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt29820-21latency_hist09:49:501
81740rcu_preempt0-21swapper/107:08:341
81710rcu_preempt0-21swapper/107:10:141
81690rcu_preempt30443-21ntpq11:45:111
81690rcu_preempt24432-21apt-get12:35:010
81690rcu_preempt21233-21ssh12:28:291
81690rcu_preempt0-21swapper/109:29:141
81690rcu_preempt0-21swapper/012:30:040
81680rcu_preempt23448-21tr10:35:091
81680rcu_preempt0-21swapper/112:30:071
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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