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2026-07-11 - 19:45
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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 Jul 11, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
146650870irq/31-eth0-tx-0-21swapper/011:34:560
81860rcu_preempt8342-21ssh11:41:571
89950840irq/17-ehci_hcd171rcuc/107:11:331
81760rcu_preempt12361-21ssh12:44:430
81740rcu_preempt19-21ksoftirqd/110:09:541
81710rcu_preempt0-21swapper/011:55:160
81710rcu_preempt0-21swapper/011:55:160
81700rcu_preempt4502-21fw_conntrack11:36:260
81690rcu_preempt0-21swapper/011:48:500
81690rcu_preempt0-21swapper/010:43:420
81690rcu_preempt0-21swapper/010:11:220
81690rcu_preempt0-21swapper/007:26:320
81680rcu_preempt3-21ksoftirqd/007:15:180
81680rcu_preempt21916-21fw_conntrack11:11:250
81680rcu_preempt0-21swapper/011:18:180
89950670irq/17-ehci_hcd14412-21ssh11:52:081
89950670irq/17-ehci_hcd14412-21ssh11:52:081
81670rcu_preempt16296-21ntp_states10:06:310
81670rcu_preempt0-21swapper/012:07:460
81670rcu_preempt0-21swapper/009:51:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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