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2026-04-01 - 02:58
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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 Wed Apr 01, 2026 00:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
268659912693,20cyclictest14-21ksoftirqd/019:30:120
268659911779,25cyclictest14-21ksoftirqd/023:20:130
268659911174,23cyclictest14-21ksoftirqd/021:10:140
268659911112,85cyclictest0-21swapper/020:10:140
268659911012,30cyclictest0-21swapper/019:40:110
268659911010,85cyclictest0-21swapper/023:55:240
268659910913,82cyclictest0-21swapper/019:25:220
268659910911,84cyclictest0-21swapper/022:30:110
268659910767,27cyclictest14-21ksoftirqd/020:00:130
268659910712,34cyclictest0-21swapper/020:05:120
268659910667,26cyclictest14-21ksoftirqd/019:45:220
268709910511,29cyclictest0-21swapper/100:35:231
268659910565,26cyclictest0-21swapper/022:15:100
268659910513,25cyclictest0-21swapper/021:40:130
268659910512,28cyclictest0-21swapper/020:15:130
268659910511,82cyclictest0-21swapper/021:05:100
268709910412,30cyclictest0-21swapper/100:15:131
268659910322,68cyclictest20588-21kworker/0:123:40:150
268659910258,33cyclictest14-21ksoftirqd/023:15:140
268659910156,34cyclictest14-21ksoftirqd/022:40:110
2671029915,39sleep00-21swapper/019:09:550
26865999851,37cyclictest14-21ksoftirqd/022:05:140
26865999849,37cyclictest14-21ksoftirqd/022:35:120
26865999641,45cyclictest14-21ksoftirqd/022:00:130
26865999513,29cyclictest0-21swapper/020:35:110
26865999441,43cyclictest14-21ksoftirqd/020:20:120
26865999412,63cyclictest0-21swapper/023:00:140
26865999347,34cyclictest14-21ksoftirqd/019:15:110
26865999312,60cyclictest0-21swapper/020:25:170
26865999310,66cyclictest0-21swapper/021:00:170
26865999310,66cyclictest0-21swapper/021:00:160
26865999226,53cyclictest14-21ksoftirqd/021:20:130
26865999211,58cyclictest0-21swapper/021:25:140
26865999112,55cyclictest0-21swapper/023:05:130
26865999111,62cyclictest0-21swapper/023:35:130
26865999111,61cyclictest0-21swapper/023:25:130
26865999111,59cyclictest0-21swapper/023:30:120
26865999019,49cyclictest0-21swapper/023:45:100
26865999011,22cyclictest0-21swapper/022:10:130
26865999010,59cyclictest0-21swapper/022:20:140
26865999010,58cyclictest0-21swapper/023:50:140
26865999010,55cyclictest0-21swapper/020:40:110
26870998914,31cyclictest0-21swapper/123:10:121
26865998933,37cyclictest0-21swapper/022:25:130
26865998917,49cyclictest0-21swapper/020:50:110
26865998911,59cyclictest0-21swapper/020:55:130
26865998812,57cyclictest0-21swapper/000:30:140
26865998721,45cyclictest14-21ksoftirqd/020:30:110
2686599869,60cyclictest0-21swapper/000:00:140
2686599866,33cyclictest151rcu_preempt22:50:110
26865998613,54cyclictest0-21swapper/019:55:170
26865998610,21cyclictest0-21swapper/021:50:240
2641528628,47sleep10-21swapper/119:07:171
2686599839,52cyclictest0-21swapper/021:45:160
26865998337,29cyclictest0-21swapper/000:25:140
26865998211,51cyclictest0-21swapper/000:20:140
26865998132,27cyclictest14-21ksoftirqd/022:45:150
26865998110,55cyclictest0-21swapper/021:15:130
26865997927,31cyclictest0-21swapper/022:55:150
2686599788,22cyclictest0-21swapper/023:10:140
26865997827,30cyclictest0-21swapper/019:35:130
26865997813,45cyclictest0-21swapper/021:55:130
26865997813,45cyclictest0-21swapper/021:55:130
26870997713,41cyclictest19890-21apt-get21:50:161
26865997730,27cyclictest0-21swapper/021:35:110
26865997514,23cyclictest0-21swapper/020:45:120
2686599745,53cyclictest0-21swapper/021:30:150
26865997429,27cyclictest0-21swapper/019:50:120
2686599722,50cyclictest0-21swapper/000:15:140
2686599712,50cyclictest0-21swapper/000:10:080
2686599703,49cyclictest0-21swapper/000:35:250
26870996954,10cyclictest26-21ksoftirqd/100:00:031
2686599689,37cyclictest31260-21apt-get19:20:150
26865996810,43cyclictest0-21swapper/019:10:120
2687099615,28cyclictest27500-21apt-get20:40:111
26870996140,12cyclictest26-21ksoftirqd/121:00:001
26870996140,12cyclictest26-21ksoftirqd/119:20:011
2687099605,25cyclictest16966-21apt-get20:10:131
26870996040,11cyclictest26-21ksoftirqd/121:10:001
26870995941,11cyclictest26-21ksoftirqd/122:20:201
26870995839,10cyclictest26-21ksoftirqd/123:40:011
26870995838,13cyclictest26-21ksoftirqd/122:40:151
26870995837,12cyclictest26-21ksoftirqd/123:55:011
26870995830,21cyclictest27301-21cron20:40:001
26870995740,11cyclictest26-21ksoftirqd/121:05:011
26870995740,11cyclictest26-21ksoftirqd/121:05:011
26870995740,10cyclictest26-21ksoftirqd/123:25:381
26870995739,11cyclictest26-21ksoftirqd/120:00:291
26870995738,12cyclictest26-21ksoftirqd/120:30:171
26870995737,12cyclictest26-21ksoftirqd/119:35:011
26870995736,12cyclictest26-21ksoftirqd/119:24:591
26870995728,23cyclictest26-21ksoftirqd/100:10:011
2687099565,35cyclictest0-21swapper/120:47:111
26870995639,10cyclictest26-21ksoftirqd/100:35:011
2687099555,13cyclictest27811-21apt-get23:45:131
26870995539,9cyclictest26-21ksoftirqd/123:33:461
26870995537,11cyclictest26-21ksoftirqd/123:15:181
26870995537,11cyclictest26-21ksoftirqd/120:10:011
26870995536,11cyclictest26-21ksoftirqd/100:30:011
26870995535,11cyclictest26-21ksoftirqd/122:30:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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