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2026-08-18 - 18:41
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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 100 highest latencies:
System rack3slot6.osadl.org (updated Tue Aug 18, 2026 12:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2438327140,21sleep126-21ksoftirqd/107:05:181
257899911211,25cyclictest0-21swapper/108:10:111
257849911283,17cyclictest14-21ksoftirqd/010:40:140
2022721120,5chrt20207-21timerandwakeup08:20:361
257899910912,25cyclictest0-21swapper/109:40:131
257899910911,26cyclictest0-21swapper/109:05:131
257849910980,19cyclictest14-21ksoftirqd/010:25:160
257899910816,23cyclictest0-21swapper/108:30:241
257899910813,24cyclictest0-21swapper/111:15:151
257899910811,25cyclictest0-21swapper/112:25:221
257899910714,27cyclictest0-21swapper/107:35:151
257899910713,28cyclictest0-21swapper/110:55:131
257899910711,25cyclictest0-21swapper/107:45:151
257899910612,27cyclictest0-21swapper/108:45:131
257899910612,23cyclictest0-21swapper/109:30:151
257899910514,27cyclictest0-21swapper/111:45:121
257899910512,27cyclictest0-21swapper/112:20:131
257899910512,23cyclictest0-21swapper/108:25:171
257899910511,27cyclictest0-21swapper/112:10:121
257899910510,27cyclictest0-21swapper/107:10:121
257899910510,27cyclictest0-21swapper/107:10:121
257899910412,22cyclictest0-21swapper/110:20:121
257899910411,26cyclictest0-21swapper/109:20:141
257899910410,25cyclictest0-21swapper/111:05:111
257899910410,22cyclictest0-21swapper/112:15:141
257849910373,20cyclictest0-21swapper/007:48:230
257899910214,26cyclictest0-21swapper/110:10:121
25789991019,23cyclictest0-21swapper/107:50:141
257899910051,28cyclictest26-21ksoftirqd/108:00:121
25784999968,18cyclictest14-21ksoftirqd/012:30:140
25789999812,26cyclictest0-21swapper/107:55:131
25789999811,26cyclictest0-21swapper/110:25:141
25784999870,18cyclictest14-21ksoftirqd/012:25:250
25784999867,20cyclictest14-21ksoftirqd/009:15:150
25784999864,21cyclictest14-21ksoftirqd/010:15:100
2578999976,44cyclictest4535-21diskmemload09:10:121
25784999765,19cyclictest0-21swapper/009:55:130
25784999764,20cyclictest14-21ksoftirqd/008:50:130
25784999563,20cyclictest14-21ksoftirqd/011:10:130
25784999514,67cyclictest0-21swapper/010:20:140
2562229510,39sleep00-21swapper/007:09:410
25789999413,26cyclictest0-21swapper/108:15:251
25789999310,23cyclictest0-21swapper/112:35:131
25784999361,20cyclictest14-21ksoftirqd/012:00:150
25784999356,23cyclictest0-21swapper/011:50:130
25784999258,21cyclictest14-21ksoftirqd/008:55:140
25784999211,68cyclictest0-21swapper/009:30:130
25784999158,20cyclictest14-21ksoftirqd/011:30:240
25784999011,66cyclictest0-21swapper/007:40:140
25784998955,21cyclictest14-21ksoftirqd/010:05:140
25784998857,21cyclictest14-21ksoftirqd/008:35:130
25784998857,19cyclictest14-21ksoftirqd/010:55:140
25784998850,25cyclictest14-21ksoftirqd/008:00:140
25789998712,22cyclictest0-21swapper/110:30:131
25784998647,26cyclictest14-21ksoftirqd/010:45:150
2578999839,25cyclictest0-21swapper/111:10:121
25789998311,26cyclictest0-21swapper/112:00:121
25784998349,22cyclictest14-21ksoftirqd/007:25:120
25784998347,23cyclictest14-21ksoftirqd/008:10:120
25784998346,25cyclictest14-21ksoftirqd/007:50:130
25784998340,31cyclictest14-21ksoftirqd/011:20:140
25784998312,59cyclictest0-21swapper/007:10:140
25784998312,59cyclictest0-21swapper/007:10:140
25784998245,26cyclictest14-21ksoftirqd/009:50:220
25784998242,28cyclictest14-21ksoftirqd/012:15:150
25784998241,29cyclictest14-21ksoftirqd/012:05:150
25784998143,26cyclictest14-21ksoftirqd/011:55:120
25784998143,25cyclictest14-21ksoftirqd/009:00:120
25784998140,29cyclictest14-21ksoftirqd/007:15:150
25784998137,32cyclictest14-21ksoftirqd/009:10:140
25784998043,26cyclictest14-21ksoftirqd/007:35:130
25784997930,38cyclictest14-21ksoftirqd/011:35:120
25784997633,31cyclictest14-21ksoftirqd/011:00:150
25784997621,16cyclictest14-21ksoftirqd/008:50:000
25784997441,21cyclictest0-21swapper/008:05:120
25784997339,22cyclictest0-21swapper/009:20:120
25784997328,34cyclictest14-21ksoftirqd/012:10:140
25784997328,33cyclictest14-21ksoftirqd/009:40:150
25784997318,45cyclictest0-21swapper/008:25:150
2578499728,49cyclictest0-21swapper/008:20:140
25784997234,25cyclictest0-21swapper/010:50:120
25784997234,25cyclictest0-21swapper/010:50:110
25784997222,36cyclictest14-21ksoftirqd/007:20:120
25789997027,26cyclictest0-21swapper/109:45:151
2578499707,51cyclictest0-21swapper/009:35:130
25784997021,32cyclictest0-21swapper/010:00:230
25784997015,44cyclictest14-21ksoftirqd/010:30:140
2578499697,48cyclictest14-21ksoftirqd/008:30:150
25784996926,31cyclictest14-21ksoftirqd/009:05:150
25789996827,25cyclictest0-21swapper/110:35:161
25789996826,26cyclictest0-21swapper/110:50:151
25789996826,26cyclictest0-21swapper/110:50:151
25784996811,45cyclictest0-21swapper/007:30:230
25784996811,43cyclictest17525-21apt-get08:15:160
25789996725,26cyclictest0-21swapper/111:25:161
25784996718,14cyclictest14-21ksoftirqd/012:25:010
25784996717,15cyclictest14-21ksoftirqd/009:50:010
25784996629,28cyclictest14-21ksoftirqd/007:55:160
25784996629,27cyclictest0-21swapper/011:15:160
25784996530,27cyclictest14-21ksoftirqd/011:40:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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