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2026-08-23 - 02:30
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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 Sun Aug 23, 2026 00:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
189139912495,19cyclictest14-21ksoftirqd/023:55:100
1677521210,5chrt16306-21/usr/sbin/munin23:35:231
189139911689,16cyclictest14-21ksoftirqd/019:35:130
189139911011,87cyclictest0-21swapper/019:55:120
189139910611,81cyclictest0-21swapper/022:20:140
189139910510,32cyclictest0-21swapper/021:20:120
189139910470,24cyclictest14-21ksoftirqd/021:25:110
189139910412,81cyclictest0-21swapper/023:45:120
18913991039,64cyclictest0-21swapper/000:15:260
18913991037,87cyclictest5567-21apt-get00:35:140
189139910267,23cyclictest14-21ksoftirqd/020:15:150
189139910214,76cyclictest0-21swapper/022:25:230
189139910212,79cyclictest0-21swapper/023:35:110
189209910054,33cyclictest26-21ksoftirqd/123:20:151
18913999961,26cyclictest14-21ksoftirqd/022:05:140
18913999913,75cyclictest0-21swapper/022:00:240
18920999748,33cyclictest26-21ksoftirqd/122:10:141
18913999757,28cyclictest14-21ksoftirqd/023:15:140
18913999721,66cyclictest14-21ksoftirqd/000:00:260
18913999721,66cyclictest14-21ksoftirqd/000:00:260
18913999714,70cyclictest0-21swapper/022:30:120
18913999712,73cyclictest0-21swapper/020:35:120
18913999712,71cyclictest0-21swapper/022:15:130
1892099969,26cyclictest0-21swapper/122:40:181
18913999657,26cyclictest0-21swapper/023:10:120
18913999614,70cyclictest0-21swapper/000:05:170
1847729627,24sleep00-21swapper/019:07:210
18913999515,68cyclictest0-21swapper/020:00:130
18913999511,71cyclictest0-21swapper/021:50:120
18913999511,71cyclictest0-21swapper/021:50:120
18913999511,71cyclictest0-21swapper/019:45:120
18913999511,70cyclictest0-21swapper/021:05:160
1892099946,71cyclictest9335-21runrttasks23:15:131
18913999413,68cyclictest0-21swapper/021:55:120
18913999413,68cyclictest0-21swapper/020:40:140
18913999413,67cyclictest0-21swapper/019:15:130
18913999412,70cyclictest0-21swapper/021:30:120
18913999412,70cyclictest0-21swapper/021:30:120
18913999412,69cyclictest0-21swapper/022:10:120
18913999412,69cyclictest0-21swapper/019:40:120
18913999318,64cyclictest0-21swapper/000:25:120
18913999313,69cyclictest0-21swapper/022:35:120
18913999313,69cyclictest0-21swapper/000:20:130
18913999313,64cyclictest0-21swapper/020:25:150
18913999312,69cyclictest0-21swapper/023:40:130
18913999312,68cyclictest0-21swapper/021:35:140
18913999312,68cyclictest0-21swapper/020:55:150
18913999312,66cyclictest0-21swapper/020:10:140
18913999311,69cyclictest0-21swapper/020:05:140
18913999311,68cyclictest0-21swapper/021:40:110
1892099928,64cyclictest4069-21runrttasks23:00:131
18913999213,68cyclictest0-21swapper/022:45:120
18913999212,69cyclictest0-21swapper/022:55:130
18913999212,67cyclictest0-21swapper/023:20:160
18913999212,65cyclictest0-21swapper/022:50:160
18913999211,69cyclictest0-21swapper/023:50:140
18913999130,46cyclictest14-21ksoftirqd/019:50:140
18913999113,66cyclictest0-21swapper/023:00:140
18913999113,66cyclictest0-21swapper/020:20:240
18913999112,67cyclictest0-21swapper/020:50:140
18913999111,68cyclictest0-21swapper/019:20:140
18913999111,67cyclictest0-21swapper/021:45:110
18913999110,68cyclictest0-21swapper/021:00:160
18913999110,68cyclictest0-21swapper/000:10:150
18913999110,65cyclictest0-21swapper/019:30:240
18920999013,61cyclictest0-21swapper/119:20:111
18920999012,63cyclictest0-21swapper/120:15:121
18913999012,66cyclictest0-21swapper/023:30:140
18913999012,66cyclictest0-21swapper/020:45:160
18920998911,24cyclictest0-21swapper/122:45:131
18913998937,38cyclictest14-21ksoftirqd/023:25:130
1892099888,60cyclictest27484-21apt-get00:05:141
18920998838,34cyclictest26-21ksoftirqd/100:30:131
18920998811,22cyclictest0-21swapper/123:05:151
1892099879,58cyclictest29597-21diskmemload21:10:151
18920998712,58cyclictest0-21swapper/119:45:141
18913998712,61cyclictest0-21swapper/022:40:170
18920998635,34cyclictest0-21swapper/123:40:151
18920998511,53cyclictest0-21swapper/100:25:141
1892099848,53cyclictest19269-21taskset20:40:151
18920998437,33cyclictest0-21swapper/123:30:121
18920998435,30cyclictest26-21ksoftirqd/119:10:141
18920998412,54cyclictest0-21swapper/119:25:121
18920998311,57cyclictest0-21swapper/121:00:141
18920998234,27cyclictest0-21swapper/122:25:241
1891399827,63cyclictest31506-21apt-get21:15:120
18920997934,28cyclictest0-21swapper/120:45:171
18920997932,29cyclictest0-21swapper/121:55:111
1891399797,61cyclictest18992-21apt-get19:10:140
1891399796,61cyclictest24752-21apt-get19:25:140
1891399795,53cyclictest0-21swapper/000:30:410
1892099785,53cyclictest0-21swapper/120:10:131
18920997831,30cyclictest0-21swapper/119:55:111
18920997830,29cyclictest0-21swapper/119:15:161
1891399788,60cyclictest29768-21apt-get21:10:140
18913997811,57cyclictest0-21swapper/020:30:130
18920997737,25cyclictest0-21swapper/120:25:121
1892099770,55cyclictest0-21swapper/123:50:121
1892099766,49cyclictest0-21swapper/121:20:161
18920997627,30cyclictest0-21swapper/119:30:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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