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2026-04-28 - 19:44
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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 rack3slot6.osadl.org (updated Tue Apr 28, 2026 12:45:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31184991137,85cyclictest0-21swapper/010:55:120
311899910417,31cyclictest562-21runrttasks08:45:231
311899910417,31cyclictest562-21runrttasks08:45:231
311899910412,27cyclictest0-21swapper/109:10:121
31184991047,74cyclictest0-21swapper/011:20:130
31184991047,74cyclictest0-21swapper/011:20:130
31184991039,74cyclictest0-21swapper/010:30:140
31184991039,74cyclictest0-21swapper/008:45:410
31184991039,74cyclictest0-21swapper/008:45:410
311899910214,27cyclictest0-21swapper/109:25:121
311899910214,27cyclictest0-21swapper/109:25:121
311899910214,25cyclictest0-21swapper/109:55:241
311849910210,68cyclictest0-21swapper/009:05:130
31184991018,72cyclictest0-21swapper/011:55:120
31184991016,75cyclictest0-21swapper/009:15:150
311849910112,69cyclictest0-21swapper/008:40:110
311849910112,69cyclictest0-21swapper/008:40:110
31189991009,30cyclictest295572chrt08:35:141
311899910016,25cyclictest0-21swapper/107:30:151
31189999912,35cyclictest9750-31find07:40:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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