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2026-03-23 - 05:54
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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 50 highest latencies:
System rack3slot6.osadl.org (updated Mon Mar 23, 2026 00:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
114929911614,32cyclictest0-21swapper/020:45:110
114929911413,31cyclictest0-21swapper/023:10:100
114929911011,32cyclictest0-21swapper/023:35:110
114929911011,30cyclictest0-21swapper/000:10:110
114959910979,17cyclictest26-21ksoftirqd/123:55:161
114929910913,32cyclictest0-21swapper/020:55:130
114959910877,16cyclictest26-21ksoftirqd/100:20:121
114929910813,27cyclictest0-21swapper/022:15:110
114929910810,28cyclictest0-21swapper/022:55:100
114959910776,19cyclictest26-21ksoftirqd/119:45:121
114929910712,26cyclictest0-21swapper/020:00:150
114959910474,21cyclictest26-21ksoftirqd/122:20:141
11154210431,23sleep10-21swapper/119:08:221
10984210316,39sleep00-21swapper/019:06:330
3137921020,6chrt31375-21grep00:35:391
114929910211,30cyclictest0-21swapper/020:20:110
114929910133,48cyclictest14-21ksoftirqd/023:00:120
114959910071,20cyclictest26-21ksoftirqd/120:55:141
114929910037,23cyclictest14-21ksoftirqd/021:10:110
11495999969,19cyclictest26-21ksoftirqd/121:25:141
11492999812,64cyclictest0-21swapper/020:15:130
11492999742,34cyclictest0-21swapper/019:40:120
11492999712,29cyclictest0-21swapper/020:40:120
11492999629,47cyclictest14-21ksoftirqd/022:25:140
11495999567,17cyclictest26-21ksoftirqd/122:55:111
11495999160,21cyclictest26-21ksoftirqd/100:15:131
11492999112,57cyclictest0-21swapper/023:30:130
11495999060,19cyclictest26-21ksoftirqd/119:40:121
11495998957,20cyclictest26-21ksoftirqd/122:40:141
11495998954,22cyclictest26-21ksoftirqd/121:35:111
11495998852,24cyclictest26-21ksoftirqd/119:15:151
11492998828,41cyclictest14-21ksoftirqd/022:45:110
11495998748,27cyclictest26-21ksoftirqd/119:50:231
11495998652,23cyclictest26-21ksoftirqd/120:20:141
11495998552,23cyclictest26-21ksoftirqd/123:05:121
11492998526,40cyclictest14-21ksoftirqd/000:20:120
11495998352,20cyclictest26-21ksoftirqd/121:30:131
11495998351,20cyclictest26-21ksoftirqd/121:15:111
11495998349,24cyclictest26-21ksoftirqd/123:15:111
11495998341,30cyclictest26-21ksoftirqd/123:30:141
1149599828,60cyclictest21565-21runrttasks00:10:151
11495998246,24cyclictest26-21ksoftirqd/123:45:141
11495998246,24cyclictest26-21ksoftirqd/123:45:141
11495998244,28cyclictest26-21ksoftirqd/120:40:151
11495998146,25cyclictest26-21ksoftirqd/123:35:141
11495998144,26cyclictest26-21ksoftirqd/121:05:171
11495998142,28cyclictest26-21ksoftirqd/119:10:151
11495998138,31cyclictest26-21ksoftirqd/119:30:141
11495998138,31cyclictest26-21ksoftirqd/119:30:141
11495998135,35cyclictest26-21ksoftirqd/122:30:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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