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2026-08-07 - 09:03
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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 Fri Aug 07, 2026 00:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
97499911616,90cyclictest29658-21kworker/1:120:35:141
97499911177,22cyclictest26-21ksoftirqd/120:05:141
97429910675,20cyclictest14-21ksoftirqd/020:25:100
97429910675,20cyclictest14-21ksoftirqd/020:25:100
97429910412,77cyclictest0-21swapper/000:35:130
97429910374,18cyclictest14-21ksoftirqd/000:10:110
97429910372,19cyclictest14-21ksoftirqd/019:40:120
97499910261,30cyclictest26-21ksoftirqd/123:15:151
9568210225,31sleep10-21swapper/119:09:341
97429910011,31cyclictest0-21swapper/020:20:110
9742999967,22cyclictest0-21swapper/019:25:140
9742999954,32cyclictest14-21ksoftirqd/022:20:150
9749999853,34cyclictest26-21ksoftirqd/123:55:131
9742999712,75cyclictest0-21swapper/022:30:120
9749999638,46cyclictest26-21ksoftirqd/120:55:121
9742999613,72cyclictest0-21swapper/021:25:130
9742999610,76cyclictest0-21swapper/000:05:140
9742999610,73cyclictest0-21swapper/020:00:250
9749999546,33cyclictest26-21ksoftirqd/121:20:181
9742999540,44cyclictest14-21ksoftirqd/022:55:230
9742999512,72cyclictest0-21swapper/022:10:120
9742999511,72cyclictest0-21swapper/021:45:160
9749999445,33cyclictest26-21ksoftirqd/122:10:141
9749999410,66cyclictest0-21swapper/120:10:131
9742999412,70cyclictest0-21swapper/021:20:160
9749999311,63cyclictest0-21swapper/122:55:241
9749999310,26cyclictest0-21swapper/122:50:171
9742999312,70cyclictest0-21swapper/021:00:110
9742999312,68cyclictest0-21swapper/022:15:220
9742999312,68cyclictest0-21swapper/020:45:130
9742999311,71cyclictest0-21swapper/023:30:220
9742999310,71cyclictest0-21swapper/023:25:120
9749999237,35cyclictest26-21ksoftirqd/119:50:131
9749999214,64cyclictest0-21swapper/119:15:131
9749999211,27cyclictest0-21swapper/123:35:221
9742999110,69cyclictest0-21swapper/022:40:230
9749999039,31cyclictest26-21ksoftirqd/122:25:151
9749999011,25cyclictest0-21swapper/100:10:121
9749999010,64cyclictest0-21swapper/123:40:141
9742999012,67cyclictest0-21swapper/020:55:120
9742999012,67cyclictest0-21swapper/019:10:140
9742999011,67cyclictest0-21swapper/023:40:130
9749998931,40cyclictest26-21ksoftirqd/100:20:141
9749998812,61cyclictest0-21swapper/121:15:221
9749998812,58cyclictest0-21swapper/123:25:131
9749998811,59cyclictest0-21swapper/122:45:131
9749998811,59cyclictest0-21swapper/120:15:111
9749998810,61cyclictest0-21swapper/123:45:141
9749998810,61cyclictest0-21swapper/122:15:241
974299889,21cyclictest0-21swapper/000:15:170
9742998830,45cyclictest14-21ksoftirqd/021:55:120
9742998816,59cyclictest0-21swapper/020:50:130
9742998811,66cyclictest0-21swapper/021:05:140
974999879,56cyclictest29739-21taskset00:35:161
974999878,62cyclictest20424-21diskmemload21:10:131
974999878,62cyclictest20424-21diskmemload21:10:131
9749998713,56cyclictest0-21swapper/122:30:141
9749998712,60cyclictest0-21swapper/121:40:151
9749998712,60cyclictest0-21swapper/121:40:151
9742998712,66cyclictest0-21swapper/023:55:160
9749998636,32cyclictest26-21ksoftirqd/121:00:131
9749998634,32cyclictest26-21ksoftirqd/123:00:141
9742998613,64cyclictest9735-21cyclictest19:50:120
9742998613,64cyclictest0-21swapper/000:00:140
9742998612,63cyclictest0-21swapper/021:10:140
9742998612,63cyclictest0-21swapper/021:10:140
246252860,6sleep024626-21basename00:20:180
9749998512,57cyclictest0-21swapper/122:05:131
9749998511,53cyclictest0-21swapper/123:20:151
9749998510,56cyclictest0-21swapper/123:05:141
974299859,62cyclictest0-21swapper/020:40:100
974999847,54cyclictest31766-21chrt23:10:111
9749998440,33cyclictest0-21swapper/100:00:131
974299846,21cyclictest8654-21apt-get23:35:240
9742998413,59cyclictest0-21swapper/022:00:210
9749998335,32cyclictest0-21swapper/121:55:131
974299837,19cyclictest12088-21apt-get19:15:140
9742998323,19cyclictest28032-21aten2.4_r3power21:30:170
9742998312,63cyclictest0-21swapper/021:35:120
9749998233,32cyclictest0-21swapper/123:30:231
974299827,22cyclictest27993-21apt-get00:30:160
932528217,51sleep00-21swapper/019:07:290
9749998132,33cyclictest0-21swapper/122:35:151
974299818,22cyclictest1081-21apt-get23:15:180
974299816,19cyclictest18839-21apt-get22:35:130
974299816,16cyclictest31439-21apt-get21:40:150
974299816,16cyclictest31439-21apt-get21:40:150
974299813,19cyclictest7739-21taskset20:31:090
9749998036,32cyclictest0-21swapper/100:15:151
974299807,20cyclictest22693-21apt-get22:45:150
974299806,22cyclictest28236-21apt-get23:00:130
974299806,19cyclictest26257-21apt-get00:25:140
974299797,19cyclictest1298-21apt-get20:15:110
974299796,21cyclictest17328-21apt-get19:30:120
974299796,19cyclictest31987-21apt-get20:10:140
9749997828,30cyclictest26-21ksoftirqd/121:45:141
974299786,19cyclictest8020-21apt-get22:05:130
974299778,18cyclictest22918-21apt-get19:45:130
974299777,18cyclictest2843-21apt-get23:20:130
974299776,17cyclictest8282-21apt-get20:35:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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