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2026-04-29 - 17:37
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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 20 highest latencies:
System rack5slot0.osadl.org (updated Wed Apr 29, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1953321380,3sleep02961899cyclictest11:32:410
1953321380,3sleep02961899cyclictest11:32:400
1816521260,2sleep20-21swapper/211:25:292
1816521260,2sleep20-21swapper/211:25:292
337421070,1sleep30-21swapper/310:50:163
2913629833,44sleep30-21swapper/307:07:223
2913629833,44sleep30-21swapper/307:07:213
256572950,2sleep30-21swapper/311:08:113
55112940,2sleep00-21swapper/010:25:160
216922940,1sleep12961999cyclictest09:47:471
40332910,2sleep20-21swapper/211:16:362
138482910,1sleep00-21swapper/009:53:470
188752880,0sleep00-21swapper/012:02:190
318212870,3sleep30-21swapper/312:16:163
28742860,3sleep32962199cyclictest10:17:463
3322850,2sleep32023-21nfsd11:20:133
122852850,2sleep20-21swapper/212:22:082
222022840,1sleep30-21swapper/310:23:393
278562830,3sleep30-21swapper/310:02:553
265502830,1sleep20-21swapper/211:59:352
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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