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2026-04-07 - 22:20
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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 Tue Apr 07, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800rcu_preempt0-21swapper/111:23:371
81780rcu_preempt16084-21munin-run11:50:111
81770rcu_preempt19525-21memory11:55:311
81770rcu_preempt0-21swapper/110:10:521
81770rcu_preempt0-21swapper/109:33:121
89850760irq/17-ehci_hcd0-21swapper/110:06:521
81760rcu_preempt0-21swapper/110:15:281
81750rcu_preempt31760-21apt-esm-hook12:20:251
81750rcu_preempt1784-21munin-node12:40:371
81740rcu_preempt28845-1kworker/1:0H09:40:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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