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2025-12-13 - 22:13
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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 Dec 12, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502340,0irq/46-4a10000027931-1kworker/u3:219:05:550
29238998558,0cyclictest0-21swapper21:47:390
29238998355,0cyclictest0-21swapper22:23:060
29238998252,0cyclictest0-21swapper22:12:410
29238998249,0cyclictest0-21swapper00:29:340
29238998157,0cyclictest0-21swapper23:48:230
29238997544,0cyclictest25928-21/usr/sbin/munin23:38:270
29238997451,0cyclictest0-21swapper21:58:030
7450730,0irq/46-4a1000009504-21apt-get19:42:430
29238997341,0cyclictest16938-21/usr/sbin/munin23:13:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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