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2026-03-12 - 19:21
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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 Mar 12, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1479501100irq/31-eth0-tx-25902-1kworker/0:1H09:45:590
81980rcu_preempt10762-21ssh10:34:301
81820rcu_preempt30778-21kernelversion09:09:191
81820rcu_preempt29276-21ssh11:09:451
89450800irq/17-ehci_hcd30863-21/usr/sbin/munin12:14:260
81800rcu_preempt683-21sh11:19:001
89450780irq/17-ehci_hcd0-21swapper/010:44:350
81780rcu_preempt2138-21snmpd11:27:321
81780rcu_preempt0-21swapper/112:14:211
81750rcu_preempt0-21swapper/111:04:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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