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2026-09-20 - 14:01
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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 Sep 20, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502500,0irq/46-4a1000004990-1kworker/u3:107:09:280
52819912544,0cyclictest16896-21/usr/sbin/munin10:50:220
52819912438,0cyclictest0-21swapper08:10:550
52819912341,0cyclictest13279-21fschecks_time12:15:060
52819912339,0cyclictest0-21swapper12:05:540
52819912338,0cyclictest0-21swapper07:51:360
52819912241,0cyclictest0-21swapper07:15:010
52819912240,0cyclictest0-21swapper11:05:130
52819912236,0cyclictest0-21swapper11:43:590
52819912141,0cyclictest0-21swapper11:35:130
52819912141,0cyclictest0-21swapper09:24:540
52819912129,0cyclictest17732-21runrttasks09:18:560
52819912049,0cyclictest0-21swapper08:14:510
52819912049,0cyclictest0-21swapper08:05:310
52819912045,0cyclictest0-21swapper10:40:340
52819912040,0cyclictest7948-21/usr/sbin/munin11:59:560
52819912040,0cyclictest0-21swapper12:25:020
52819912040,0cyclictest0-21swapper12:20:290
52819912040,0cyclictest0-21swapper10:04:480
52819912034,0cyclictest0-21swapper10:26:340
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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