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2025-12-31 - 20:06
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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 Wed Dec 31, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811040rcu_preempt19-21ksoftirqd/110:57:391
89850850irq/17-ehci_hcd19-21ksoftirqd/110:34:201
81740rcu_preempt29183-21/usr/sbin/munin10:41:110
81710rcu_preempt8945-21diskmemload09:50:060
81710rcu_preempt0-21swapper/009:05:480
81690rcu_preempt0-21swapper/009:01:110
81680rcu_preempt8945-21diskmemload10:08:090
81680rcu_preempt0-21swapper/110:04:301
81680rcu_preempt0-21swapper/109:15:091
81680rcu_preempt0-21swapper/012:06:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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