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2026-09-08 - 07:22
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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 rack4slot4.osadl.org (updated Tue Sep 08, 2026 00:44:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71600rcu_preempt30383-21diskstats22:10:100
71600rcu_preempt30383-21diskstats22:10:100
30427994820cyclictest16104-21ssh22:41:191
30427994820cyclictest16104-21ssh22:41:191
30427994820cyclictest16104-21ssh22:41:191
30427994627cyclictest28300-21ssh22:05:291
30427994627cyclictest28300-21ssh22:05:291
71450rcu_preempt0-21swapper/122:25:221
71450rcu_preempt0-21swapper/122:25:221
30427994514cyclictest25306-1kworker/1:1H21:34:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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