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2026-04-18 - 02:00
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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 Sat Apr 18, 2026 00:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
249569912594,18cyclictest14-21ksoftirqd/023:05:150
249569911988,17cyclictest14-21ksoftirqd/021:00:130
249569911481,23cyclictest14-21ksoftirqd/019:10:110
249569911082,16cyclictest0-21swapper/021:25:140
249569910978,20cyclictest14-21ksoftirqd/020:55:230
249569910612,80cyclictest0-21swapper/020:15:110
249569910612,80cyclictest0-21swapper/020:15:110
249569910510,80cyclictest503-21snmpd00:20:140
249569910411,79cyclictest0-21swapper/019:50:130
249569910411,78cyclictest0-21swapper/019:15:120
249569910315,75cyclictest562-21runrttasks21:30:110
249569910212,33cyclictest0-21swapper/020:20:120
249569910168,20cyclictest0-21swapper/023:25:110
249609910057,30cyclictest26-21ksoftirqd/121:55:121
249609910012,67cyclictest0-21swapper/122:00:101
249569910069,18cyclictest0-21swapper/021:35:120
249569910014,74cyclictest0-21swapper/019:35:110
249569910010,76cyclictest0-21swapper/023:45:120
24956999967,20cyclictest14-21ksoftirqd/022:40:110
24956999912,76cyclictest0-21swapper/019:30:110
24956999912,75cyclictest0-21swapper/022:10:110
24956999911,76cyclictest0-21swapper/023:30:150
2495699978,56cyclictest0-21swapper/023:00:120
24956999763,22cyclictest14-21ksoftirqd/020:25:100
24956999762,23cyclictest14-21ksoftirqd/023:10:130
24956999761,22cyclictest14-21ksoftirqd/020:40:130
24956999712,73cyclictest0-21swapper/019:55:140
24956999712,73cyclictest0-21swapper/019:55:140
24956999712,72cyclictest0-21swapper/000:30:140
2495699968,76cyclictest503-21snmpd21:15:120
24956999618,67cyclictest215012sleep022:00:120
24956999612,72cyclictest0-21swapper/023:50:110
24956999612,71cyclictest0-21swapper/023:40:140
24956999612,70cyclictest0-21swapper/021:05:130
24960999513,66cyclictest0-21swapper/122:15:111
24960999510,62cyclictest0-21swapper/121:40:111
2495699959,71cyclictest0-21swapper/021:45:130
24956999512,72cyclictest0-21swapper/022:25:250
24956999512,71cyclictest0-21swapper/000:05:110
24956999511,72cyclictest0-21swapper/020:45:240
18042950,6chrt1802-21ls21:05:011
24956999467,19cyclictest14-21ksoftirqd/022:50:140
24956999453,26cyclictest14-21ksoftirqd/021:20:130
24956999416,65cyclictest0-21swapper/022:20:110
24956999413,68cyclictest0-21swapper/021:50:230
24956999412,70cyclictest0-21swapper/022:05:140
24956999412,70cyclictest0-21swapper/019:20:110
24956999412,69cyclictest0-21swapper/021:55:120
24956999412,68cyclictest0-21swapper/000:00:130
24956999410,73cyclictest0-21swapper/020:10:130
24956999316,65cyclictest0-21swapper/019:25:120
24956999312,70cyclictest0-21swapper/000:25:250
24956999312,70cyclictest0-21swapper/000:10:210
24956999312,68cyclictest0-21swapper/021:40:140
24956999311,70cyclictest0-21swapper/022:45:120
24956999310,70cyclictest3517-21diskmemload21:10:140
24960999215,19cyclictest0-21swapper/122:40:131
2495699925,61cyclictest0-21swapper/022:55:370
24956999214,66cyclictest0-21swapper/023:35:140
24956999212,67cyclictest0-21swapper/023:20:130
24956999211,69cyclictest0-21swapper/023:55:250
2448629222,25sleep00-21swapper/019:06:590
24956999114,66cyclictest0-21swapper/020:05:140
24956999113,66cyclictest0-21swapper/022:30:110
24956999112,69cyclictest0-21swapper/019:40:240
24956999112,68cyclictest0-21swapper/020:30:120
24956999111,69cyclictest0-21swapper/020:50:120
24956999111,69cyclictest0-21swapper/000:15:130
24956999111,67cyclictest0-21swapper/023:15:110
24956999111,67cyclictest0-21swapper/020:35:150
24956999013,65cyclictest0-21swapper/022:35:130
24956999012,68cyclictest0-21swapper/000:35:120
24960998936,34cyclictest26-21ksoftirqd/122:45:111
24960998913,55cyclictest0-21swapper/100:20:121
24960998912,58cyclictest0-21swapper/123:20:111
24956998913,64cyclictest0-21swapper/019:45:120
24960998811,54cyclictest0-21swapper/120:05:111
2495699869,60cyclictest10931-21taskset20:00:110
24960998336,28cyclictest0-21swapper/120:55:211
24960997933,29cyclictest26-21ksoftirqd/120:45:231
24960997733,27cyclictest0-21swapper/122:50:111
24960997731,29cyclictest0-21swapper/100:30:121
2495699777,59cyclictest26767-21apt-get22:15:140
24960997534,30cyclictest0-21swapper/122:55:131
2457126929,29sleep10-21swapper/119:07:551
24960996826,15cyclictest26-21ksoftirqd/120:15:001
2496099682,47cyclictest0-21swapper/120:50:101
24960996740,14cyclictest10728-21telnet21:30:151
24960996722,30cyclictest0-21swapper/123:35:121
24960996627,34cyclictest0-21swapper/122:10:311
24960996540,9cyclictest26-21ksoftirqd/123:07:351
2496099643,55cyclictest17280-21grep20:15:361
2496099643,55cyclictest17280-21grep20:15:351
24960996414,31cyclictest0-21swapper/100:00:121
314552630,6chrt31458-21switchtime22:25:441
24960996323,25cyclictest0-21swapper/123:15:111
24960996315,30cyclictest0-21swapper/121:25:121
24960996312,33cyclictest0-21swapper/122:35:121
2496099623,15cyclictest472-21polkitd22:35:001
24960996213,30cyclictest0-21swapper/121:45:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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