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2026-03-13 - 20:22
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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 rackcslot3.osadl.org (updated Fri Mar 13, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811050rcu_preempt19-21ksoftirqd/109:17:201
81770rcu_preempt19692-1kworker/0:1H09:39:220
81750rcu_preempt12656-21ssh12:27:170
81730rcu_preempt12817-21sh11:24:460
81730rcu_preempt0-21swapper/007:54:270
81720rcu_preempt26009-1kworker/1:2H09:44:011
147850720irq/30-eth0-tx-945-21usb-storage10:27:041
81710rcu_preempt0-21swapper/111:00:341
81710rcu_preempt0-21swapper/010:56:450
81710rcu_preempt0-21swapper/008:24:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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