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2026-06-14 - 13:01
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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 Sun Jun 14, 2026 00:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
62009910312,27cyclictest0-21swapper/000:30:120
62009910148,44cyclictest14-21ksoftirqd/019:30:120
62009910148,44cyclictest14-21ksoftirqd/019:30:120
62009910113,74cyclictest0-21swapper/020:45:110
6205991008,70cyclictest0-21swapper/122:15:231
6200999914,79cyclictest0-21swapper/000:25:130
6200999814,77cyclictest0-21swapper/000:20:130
6200999812,24cyclictest0-21swapper/022:10:110
6200999811,26cyclictest0-21swapper/023:10:100
6200999713,73cyclictest0-21swapper/022:45:130
6200999712,77cyclictest0-21swapper/020:55:130
6200999613,72cyclictest0-21swapper/020:35:120
6200999611,28cyclictest0-21swapper/021:20:110
6200999527,19cyclictest15311-21grep00:10:010
6200999313,21cyclictest0-21swapper/000:00:110
6200999113,19cyclictest0-21swapper/023:05:110
6200999013,68cyclictest0-21swapper/021:40:130
6200998914,32cyclictest14961-21apt-get21:05:140
620099886,48cyclictest0-21swapper/021:55:330
6200998818,29cyclictest0-21swapper/022:51:460
6200998813,62cyclictest0-21swapper/000:35:120
6205998611,58cyclictest0-21swapper/119:15:111
620099865,44cyclictest0-21swapper/019:20:210
6205998528,27cyclictest0-21swapper/123:15:211
620599842,59cyclictest503-21snmpd20:37:091
620099848,27cyclictest16756-21apt-get21:10:150
6200998312,61cyclictest0-21swapper/022:30:120
620599827,60cyclictest0-21swapper/120:15:141
620599827,23cyclictest0-21swapper/122:35:121
620599823,55cyclictest15187-21latency_hist00:10:011
6205998211,57cyclictest0-21swapper/123:10:121
6200998214,58cyclictest0-21swapper/019:55:120
620599817,58cyclictest0-21swapper/122:00:121
620599807,57cyclictest0-21swapper/121:20:141
620599807,56cyclictest0-21swapper/120:50:131
6205998010,54cyclictest0-21swapper/119:50:161
620599787,56cyclictest0-21swapper/123:45:121
620599787,56cyclictest0-21swapper/123:45:121
620599787,56cyclictest0-21swapper/123:40:121
620599787,55cyclictest0-21swapper/119:30:151
620599787,55cyclictest0-21swapper/119:30:151
6205997810,57cyclictest0-21swapper/121:45:141
6205997810,52cyclictest0-21swapper/120:25:131
582027821,49sleep00-21swapper/019:07:520
620599778,53cyclictest0-21swapper/120:20:131
620599777,53cyclictest0-21swapper/120:00:101
620599776,57cyclictest0-21swapper/123:20:151
620599775,57cyclictest0-21swapper/121:35:111
6205997710,51cyclictest0-21swapper/119:55:141
620099778,25cyclictest7409-21apt-get22:15:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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