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2026-04-16 - 23:16
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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 Thu Apr 16, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81780rcu_preempt8274-21/usr/sbin/munin09:50:561
81780rcu_preempt0-21swapper/007:55:550
81770rcu_preempt21667-21kworker/1:207:10:511
89450760irq/17-ehci_hcd0-21swapper/009:12:220
81760rcu_preempt32303-21cpuspeed_turbos07:50:470
81750rcu_preempt13351-21diskstats12:05:501
81740rcu_preempt15129-21processes11:06:001
81720rcu_preempt0-21swapper/110:20:581
81720rcu_preempt0-21swapper/010:10:510
81710rcu_preempt31494-21sh11:37:421
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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