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2026-06-11 - 06:33
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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 20 highest latencies:
System rackcslot3.osadl.org (updated Thu Jun 11, 2026 00:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89950840irq/17-ehci_hcd0-21swapper/019:09:010
81800rcu_preempt12298-21needreboot23:38:561
81760rcu_preempt19-21ksoftirqd/121:46:541
81750rcu_preempt28396-21latency23:08:520
81750rcu_preempt19-21ksoftirqd/122:52:351
81750rcu_preempt0-21swapper/121:21:231
146250750irq/28-eth0-rx-0-21swapper/119:09:011
81730rcu_preempt3302-21ssh22:22:450
81720rcu_preempt2192-21snmpd22:46:050
81720rcu_preempt2192-21snmpd22:46:050
81720rcu_preempt15390-21ssh21:44:000
81710rcu_preempt0-21swapper/020:29:010
89950700irq/17-ehci_hcd29923-21diskmemload23:29:551
81700rcu_preempt11144-21ssh23:37:350
81700rcu_preempt0-21swapper/023:54:140
81700rcu_preempt0-21swapper/000:36:060
81690rcu_preempt0-21swapper/023:06:020
81690rcu_preempt0-21swapper/022:26:150
81690rcu_preempt0-21swapper/022:09:040
89550680irq/17-ehci_hcd3513-21/usr/sbin/munin21:23:550
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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