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2026-05-21 - 14:10
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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 May 21, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81770rcu_preempt2128-21/usr/sbin/munin22:26:491
81760rcu_preempt146550irq/30-eth0-tx-19:06:520
81750rcu_preempt29869-21missed_timers22:17:091
81750rcu_preempt26686-21timerwakeupswit21:12:161
81750rcu_preempt14352-21ssh23:47:161
81750rcu_preempt11955-21sshd21:44:571
89950740irq/17-ehci_hcd171rcuc/123:17:471
81740rcu_preempt0-21swapper/022:51:370
81730rcu_preempt6667-21df_abs19:57:030
81730rcu_preempt22696-21ssh00:02:381
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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