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2026-05-04 - 21:28
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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 Mon May 04, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23492950,2sleep31485899cyclictest11:46:553
143612710,0sleep50-21swapper/509:36:105
92102550,0sleep69213-21unixbench_singl11:29:526
92102550,0sleep69213-21unixbench_singl11:29:526
305392510,0sleep30-21swapper/311:00:413
172102510,0sleep0709-21systemd-logind12:04:460
73232500,1sleep57324-21bash10:21:515
1452825027,8sleep70-21swapper/707:07:027
5552490,0sleep70-21swapper/710:13:367
82162480,1sleep7711rcuc/709:35:477
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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