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2026-08-22 - 00:41
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 rack4slot2.osadl.org (updated Fri Aug 21, 2026 12:44:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502020,0irq/45-4a10000015246-21kworker/0:107:05:440
20745999673,0cyclictest0-21swapper08:30:180
3035629210,0sleep030358-21/usr/sbin/munin12:20:050
20745999259,0cyclictest0-21swapper09:50:050
20745999258,0cyclictest0-21swapper11:05:140
20745999158,0cyclictest0-21swapper07:35:010
20745999157,0cyclictest0-21swapper07:15:080
2165829011,0sleep021661-21diskstats11:54:510
20745999066,0cyclictest0-21swapper11:34:500
20745999056,0cyclictest0-21swapper11:29:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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