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2026-05-06 - 22:02
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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 Wed May 06, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501880,0irq/46-4a1000003907-21runrttasks07:00:370
4446999359,0cyclictest0-21swapper07:55:430
7450920,0irq/46-4a10000022759-21/usr/sbin/munin11:05:210
7350920,0irq/45-4a1000003163-1kworker/u3:109:00:340
7450910,0irq/46-4a1000007890-21sed11:55:400
7450910,0irq/46-4a1000004760-21df07:04:570
7450910,0irq/46-4a10000029596-21/usr/sbin/munin11:25:170
4446999158,0cyclictest0-21swapper11:45:260
4446999155,0cyclictest0-21swapper10:05:430
7450900,0irq/46-4a1000005911-21/usr/sbin/munin08:40:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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