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2026-07-11 - 02:48
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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 Sat Jul 11, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745012040,0irq/46-4a1000004359-1kworker/u3:119:08:140
4759999457,0cyclictest0-21swapper21:17:440
4759999153,0cyclictest0-21swapper21:04:260
4759998769,0cyclictest21646-21/usr/sbin/munin19:54:530
4759998755,0cyclictest0-21swapper19:49:120
4759998558,0cyclictest0-21swapper19:22:160
4759998164,0cyclictest5769-21/usr/sbin/munin20:44:220
4759998161,0cyclictest11132-21irqstats20:59:460
4759998157,0cyclictest0-21swapper21:58:380
4759998055,0cyclictest0-21swapper21:28:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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