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2026-05-13 - 15:25
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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 Wed May 13, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89950840irq/17-ehci_hcd945-21usb-storage12:01:011
81760rcu_preempt0-21swapper/007:06:250
81730rcu_preempt715-21open_files10:11:331
81730rcu_preempt10155-1kworker/0:0H11:07:590
89550720irq/17-ehci_hcd31973-21/usr/sbin/munin07:06:321
81720rcu_preempt0-21swapper/012:01:290
89150710irq/17-ehci_hcd18277-21ssh10:44:010
81710rcu_preempt20606-21ssh09:48:550
81710rcu_preempt0-21swapper/012:34:440
81710rcu_preempt0-21swapper/011:51:200
81710rcu_preempt0-21swapper/010:26:240
81700rcu_preempt4220-21sh09:20:010
81700rcu_preempt18193-21grep08:16:341
81700rcu_preempt1200-21sh09:14:510
81700rcu_preempt0-21swapper/008:46:360
81700rcu_preempt0-21swapper/008:36:260
81690rcu_preempt3127-21apt-get11:16:210
81690rcu_preempt0-21swapper/109:32:211
81690rcu_preempt0-21swapper/011:14:190
81680rcu_preempt24815-21munin-run08:46:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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