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2026-03-30 - 00:22
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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 20 highest latencies:
System rack4slot2.osadl.org (updated Sun Mar 29, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74508440,0irq/46-4a100000186722chrt07:04:570
18871999756,0cyclictest0-21swapper07:06:450
18871999460,0cyclictest0-21swapper11:02:030
18871999457,0cyclictest0-21swapper08:56:580
7350920,0irq/45-4a10000023543-21/usr/sbin/munin07:16:470
248232910,0sleep024327-1kworker/u3:012:06:230
18871999169,0cyclictest0-21swapper09:11:430
18871999160,0cyclictest0-21swapper07:32:110
18871999158,0cyclictest0-21swapper07:41:360
18871999157,0cyclictest0-21swapper08:37:070
7450900,0irq/46-4a1000006186-21sed08:01:300
7350900,0irq/45-4a10000022596-1kworker/u3:112:26:470
7350900,0irq/45-4a10000015852-1kworker/u3:108:31:110
18871999069,0cyclictest0-21swapper10:06:300
18871999059,0cyclictest0-21swapper11:32:030
18871999057,0cyclictest0-21swapper11:56:530
18871999057,0cyclictest0-21swapper09:16:560
18871999056,0cyclictest0-21swapper10:17:100
7350890,0irq/45-4a10000010619-1kworker/u3:008:18:580
18871998958,0cyclictest0-21swapper10:56:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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