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2026-05-22 - 22:00
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 10 highest latencies:
System rack3slot0.osadl.org (updated Fri May 22, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2817321030,2sleep146199cyclictest09:16:101
288382940,16sleep685150irq/25-em1-rx-012:13:566
187952820,0sleep20-21swapper/209:44:472
28172710,2sleep348499cyclictest09:54:493
117662560,2sleep650999cyclictest10:54:036
151832530,0sleep10-21swapper/112:00:131
242932510,1sleep524294-21bash10:58:265
109742500,1sleep5721-21dbus-daemon11:36:075
291182480,0sleep629116-21sshd11:00:276
130592480,0sleep00-21swapper/010:39:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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