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2026-06-07 - 00:18
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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 Sat Jun 06, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89150860irq/17-ehci_hcd7440-1kworker/0:2H19:53:340
81810rcu_preempt0-21swapper/019:08:220
81760rcu_preempt19-21ksoftirqd/100:00:361
81750rcu_preempt0-21swapper/000:07:270
81740rcu_preempt25849-21ssh21:24:510
81730rcu_preempt19-21ksoftirqd/122:01:271
89950720irq/17-ehci_hcd945-21usb-storage22:58:061
81720rcu_preempt18688-21ssh23:11:400
81720rcu_preempt0-21swapper/020:38:320
81720rcu_preempt0-21swapper/019:33:280
89950710irq/17-ehci_hcd0-21swapper/023:56:100
81710rcu_preempt7440-1kworker/0:2H22:23:130
81710rcu_preempt0-21swapper/022:13:100
81710rcu_preempt0-21swapper/021:56:180
81710rcu_preempt0-21swapper/000:08:350
81700rcu_preempt29445-21ssh00:33:010
81700rcu_preempt0-21swapper/023:49:410
81700rcu_preempt0-21swapper/023:43:340
81690rcu_preempt31258-21ssh22:34:191
81690rcu_preempt0-21swapper/100:17:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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