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2026-07-08 - 02:05
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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 Tue Jul 07, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81760rcu_preempt0-21swapper/107:11:091
81750rcu_preempt17153-21sh10:03:170
146250750irq/28-eth0-rx-21279-21/usr/sbin/munin07:11:010
81740rcu_preempt21214-21ntp_states09:16:101
81740rcu_preempt11229-21ntp_states11:41:090
81730rcu_preempt8739-21timerandwakeup08:26:151
81720rcu_preempt0-21swapper/112:12:141
81720rcu_preempt0-21swapper/008:41:080
89950710irq/17-ehci_hcd945-21usb-storage10:11:081
81710rcu_preempt0-21swapper/112:26:091
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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