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2026-04-15 - 23:03
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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 Apr 15, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81780rcu_preempt0-21swapper/107:11:541
81740rcu_preempt15921-21ntp_offset10:05:540
81730rcu_preempt18206-21sendmail_mailtr09:00:570
89850710irq/17-ehci_hcd6514-21ssh11:52:171
81710rcu_preempt0-21swapper/010:52:000
81710rcu_preempt0-21swapper/009:31:310
81710rcu_preempt0-21swapper/009:22:000
81700rcu_preempt10896-21munin-run08:35:320
81700rcu_preempt0-21swapper/107:30:481
81700rcu_preempt0-21swapper/010:23:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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