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2026-03-26 - 12:59
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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 Thu Mar 26, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81790rcu_preempt19159-21sh21:40:161
81790rcu_preempt0-21swapper/120:19:371
81780rcu_preempt19-21ksoftirqd/123:13:121
81770rcu_preempt0-21swapper/100:41:261
81760rcu_preempt15918-21apt-get23:39:481
81760rcu_preempt0-21swapper/122:08:511
81760rcu_preempt0-21swapper/121:58:381
89850750irq/17-ehci_hcd945-21usb-storage00:14:271
89850750irq/17-ehci_hcd171rcuc/122:10:401
81750rcu_preempt0-21swapper/123:56:041
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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