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2026-01-07 - 20:22
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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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackaslot8.osadl.org (updated Wed Jan 07, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
107112276245,20sleep10-21swapper/107:07:231
108332268238,20sleep20-21swapper/207:08:412
107932258227,20sleep00-21swapper/007:08:140
107592257223,22sleep30-21swapper/307:07:543
78452630,1sleep20-21swapper/211:56:022
209302610,0sleep00-21swapper/008:40:200
156542570,0sleep20-21swapper/208:30:122
204452560,0sleep10-21swapper/111:09:081
10122560,0sleep20-21swapper/212:29:342
44402550,0sleep30-21swapper/310:23:413
144772550,0sleep10-21swapper/112:18:401
133482540,0sleep30-21swapper/312:35:523
25532530,0sleep00-21swapper/010:59:060
187662520,0sleep00-21swapper/010:31:160
281942190,0sleep30-21swapper/310:36:383
6082170,0sleep30-21swapper/307:55:173
6082170,0sleep30-21swapper/307:55:173
306442170,1sleep10-21swapper/112:27:361
200372160,0sleep10-21swapper/109:55:361
86742150,0sleep10-21swapper/111:56:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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