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2026-04-22 - 01:19
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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 21, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81800rcu_preempt2138-21snmpd12:40:501
81790rcu_preempt19-21ksoftirqd/110:27:191
81760rcu_preempt13337-21ps08:21:120
81760rcu_preempt12458-21ssh10:49:310
81730rcu_preempt19-21ksoftirqd/112:13:501
81720rcu_preempt0-21swapper/010:01:030
81710rcu_preempt19-21ksoftirqd/111:40:291
81710rcu_preempt15462-1kworker/0:1H10:55:580
81710rcu_preempt0-21swapper/012:42:400
81710rcu_preempt0-21swapper/012:35:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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