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2026-05-29 - 02:00
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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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack1slot8.osadl.org (updated Thu May 28, 2026 12:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111889919555,1942cyclictest0-21swapper/010:15:220
1118899907844,52cyclictest0-21swapper/007:11:230
1118899907844,52cyclictest0-21swapper/007:11:220
1118899873815,48cyclictest0-21swapper/010:30:480
1118999779714,48cyclictest0-21swapper/107:11:231
1118999779714,48cyclictest0-21swapper/107:11:231
1118999754696,44cyclictest0-21swapper/110:30:481
1118999472412,24cyclictest16271-21ssh11:51:181
1118899457346,75cyclictest0-21swapper/011:51:180
1118999403353,35cyclictest27371-21ntp_states10:15:221
111472348325,16sleep00-21swapper/007:09:560
111472348325,16sleep00-21swapper/007:09:560
2286991030,4rtkit-daemon2285-21rtkit-daemon11:43:471
111889910212,73cyclictest0-21swapper/010:46:590
228699940,4rtkit-daemon2285-21rtkit-daemon08:59:241
1118899916,16cyclictest0-21swapper/012:20:010
1118899889,56cyclictest0-21swapper/010:11:000
1118899885,17cyclictest0-21swapper/012:00:010
1118899865,21cyclictest0-21swapper/012:05:020
1118899856,17cyclictest0-21swapper/012:10:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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