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2026-07-27 - 15:40
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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 Mon Jul 27, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502610,0irq/45-4a10000021899-21kworker/0:407:04:080
30079999774,0cyclictest0-21swapper08:04:130
30079999470,0cyclictest0-21swapper11:03:460
7450920,0irq/46-4a1000002179-1kworker/u3:209:00:560
7450920,0irq/46-4a10000021121-21runrttasks08:14:070
7450920,0irq/46-4a10000015871-21chrt07:58:590
7350920,0irq/45-4a1000009257-21/usr/sbin/munin07:39:190
7450910,0irq/46-4a1000004956-1kworker/u3:011:02:150
7450910,0irq/46-4a10000023786-21ls09:58:220
7450910,0irq/46-4a10000022703-21/usr/sbin/munin11:28:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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