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2026-07-16 - 01:05
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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 20 highest latencies:
System rackcslot3.osadl.org (updated Wed Jul 15, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89950860irq/17-ehci_hcd945-21usb-storage12:12:431
81750rcu_preempt4468-21irqstats10:06:481
81750rcu_preempt16482-21ps10:26:521
81750rcu_preempt14375-21missed_timers07:36:491
81750rcu_preempt12092-21ssh11:16:281
81750rcu_preempt0-21swapper/107:51:441
81730rcu_preempt26384-21latency_hist08:26:271
81720rcu_preempt21642-21ntp_states11:31:500
81720rcu_preempt11473-1kworker/1:2H09:28:451
89950710irq/17-ehci_hcd171rcuc/111:46:421
81710rcu_preempt20471-21sh11:30:510
81710rcu_preempt0-21swapper/110:14:111
81700rcu_preempt29354-21sh09:53:510
81700rcu_preempt11473-1kworker/1:2H09:56:261
81700rcu_preempt0-21swapper/110:01:551
81700rcu_preempt0-21swapper/008:56:490
89950690irq/17-ehci_hcd9130-21ssh11:11:121
89950690irq/17-ehci_hcd181ktimersoftd/111:59:481
81690rcu_preempt28559-21sh11:44:100
81690rcu_preempt0-21swapper/111:32:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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