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2026-03-21 - 10:03
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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 Mar 21, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31180212000,0chrt31117-1kworker/u3:219:06:130
7450970,0irq/46-4a1000004499-21cron00:06:290
7450970,0irq/46-4a10000012084-21memory21:17:130
7350970,0irq/45-4a1000009895-21runrttasks00:21:410
50902970,0sleep02911-1kworker/u3:200:07:010
251022970,0sleep024712-1kworker/u3:223:31:330
286172960,0sleep025444-1kworker/u3:220:31:410
7450950,0irq/46-4a1000008985-21/usr/sbin/munin19:32:250
7450950,0irq/46-4a10000031720-1kworker/u3:020:54:410
7450950,0irq/46-4a1000002066-21sendmail_mailtr20:47:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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