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2026-08-16 - 12:27
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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 Sun Aug 16, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811130rcu_preempt6818-21tr19:14:290
81750rcu_preempt27955-21df23:04:221
81740rcu_preempt7508-1kworker/1:0H20:05:491
81740rcu_preempt5050-21diskmemload00:34:241
81740rcu_preempt4574-21if_wlan000:24:261
81720rcu_preempt29935-21ssh23:07:590
81720rcu_preempt16500-21ssh22:40:550
81710rcu_preempt1890-21sh22:14:111
81710rcu_preempt13939-21diskstats23:39:221
81700rcu_preempt28802-21ssh00:07:551
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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