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2026-04-24 - 22:35
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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 Fri Apr 24, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74509810,0irq/46-4a10000020662-1kworker/u3:107:03:090
21028999560,0cyclictest0-21swapper08:05:480
21028999257,0cyclictest0-21swapper11:35:390
21028999256,0cyclictest0-21swapper10:50:590
21028999169,0cyclictest0-21swapper09:20:240
21028999159,0cyclictest0-21swapper07:31:010
21028999158,0cyclictest0-21swapper12:21:050
21028999158,0cyclictest0-21swapper08:15:330
21028999157,0cyclictest0-21swapper11:26:020
21028999156,0cyclictest0-21swapper09:50:310
21028999154,0cyclictest0-21swapper11:00:260
115042910,0sleep0990-1kworker/u3:208:10:200
7350900,0irq/45-4a10000016631-21/usr/sbin/munin10:00:180
297062900,0chrt28381-1kworker/u3:210:36:280
21028999058,0cyclictest0-21swapper09:10:340
21028999057,0cyclictest0-21swapper09:26:070
21028999055,0cyclictest0-21swapper09:15:420
21028998957,0cyclictest0-21swapper07:21:070
7450880,0irq/46-4a100000460-21snmpd11:50:220
21028998856,0cyclictest0-21swapper07:10:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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