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2026-07-08 - 23:57
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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 rack1slot8.osadl.org (updated Wed Jul 08, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
192949919021814,78cyclictest19828-21cut07:10:160
1929499956838,92cyclictest0-21swapper/008:10:200
1929599827707,89cyclictest9462-21strings08:10:211
176032515496,12sleep10-21swapper/107:05:031
191962377352,16sleep00-21swapper/007:09:250
1929599320289,16cyclictest19827-21sed07:10:171
192949912713,108cyclictest0-21swapper/010:12:590
19294991206,108cyclictest0-21swapper/010:49:580
192949911557,48cyclictest0-21swapper/009:11:000
1929499915,18cyclictest0-21swapper/012:15:230
19294998913,57cyclictest0-21swapper/009:52:590
228699860,4rtkit-daemon11457-21ssh10:31:111
228699850,4rtkit-daemon2285-21rtkit-daemon10:38:221
1929499826,17cyclictest0-21swapper/012:36:350
19294998211,58cyclictest0-21swapper/011:27:000
19295998115,56cyclictest0-21swapper/111:55:591
1929499816,16cyclictest0-21swapper/011:55:220
1929499816,16cyclictest0-21swapper/010:15:090
1929499816,16cyclictest0-21swapper/010:05:000
1929499815,16cyclictest0-21swapper/011:15:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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