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2026-08-03 - 06:05
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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 Mon Aug 03, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81910rcu_preempt0-21swapper/123:48:251
81860rcu_preempt19-21ksoftirqd/100:01:031
81780rcu_preempt0-21swapper/019:14:400
89950750irq/17-ehci_hcd0-21swapper/122:46:281
81750rcu_preempt8745-21ssh23:35:360
81750rcu_preempt0-21swapper/020:58:180
81740rcu_preempt1160-21munin-run23:23:011
81730rcu_preempt19248-21open_files20:33:241
81720rcu_preempt12915-21ssh23:43:211
81720rcu_preempt0-21swapper/123:38:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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