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2026-06-12 - 09:10
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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 Jun 12, 2026 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
299559911411,90cyclictest0-21swapper/000:15:140
299559911012,85cyclictest0-21swapper/019:50:110
2370721100,6chrt23000-21/usr/sbin/munin21:50:381
299559910913,80cyclictest0-21swapper/022:55:150
299559910910,86cyclictest0-21swapper/021:05:120
299559910711,84cyclictest0-21swapper/023:20:120
299559910710,82cyclictest0-21swapper/022:40:160
299559910672,21cyclictest0-21swapper/019:45:140
299559910611,76cyclictest0-21swapper/021:10:140
299559910512,80cyclictest0-21swapper/020:45:110
299559910511,80cyclictest0-21swapper/019:15:260
299559910413,71cyclictest0-21swapper/020:55:140
299559910412,80cyclictest0-21swapper/020:05:150
299559910357,32cyclictest14-21ksoftirqd/021:20:240
299559910313,77cyclictest0-21swapper/023:30:110
299559910312,79cyclictest0-21swapper/023:15:140
299559910311,78cyclictest0-21swapper/022:05:120
299559910311,27cyclictest0-21swapper/022:10:130
299559910311,27cyclictest0-21swapper/022:10:130
299559910212,26cyclictest0-21swapper/019:35:130
299559910211,78cyclictest0-21swapper/021:40:120
29955991019,77cyclictest0-21swapper/021:55:110
299559910111,78cyclictest0-21swapper/021:30:150
299559910111,77cyclictest0-21swapper/022:35:120
299559910111,76cyclictest0-21swapper/022:25:170
299559910110,77cyclictest0-21swapper/022:30:120
299559910061,28cyclictest14-21ksoftirqd/023:40:160
299559910013,73cyclictest0-21swapper/021:25:130
299559910011,77cyclictest0-21swapper/023:55:150
299559910011,76cyclictest0-21swapper/000:00:150
299559910011,75cyclictest0-21swapper/019:20:140
2995599997,73cyclictest0-21swapper/021:00:230
29955999914,73cyclictest0-21swapper/019:40:110
29955999914,72cyclictest0-21swapper/020:10:140
29955999914,72cyclictest0-21swapper/020:10:140
29955999912,73cyclictest0-21swapper/023:10:130
29955999911,77cyclictest0-21swapper/020:50:110
29955999911,76cyclictest0-21swapper/020:30:150
29955999911,75cyclictest0-21swapper/020:35:140
29955999911,74cyclictest0-21swapper/000:25:130
29955999858,29cyclictest14-21ksoftirqd/022:00:150
29955999856,31cyclictest14-21ksoftirqd/020:40:140
29955999813,69cyclictest0-21swapper/000:35:130
29955999812,72cyclictest0-21swapper/023:35:120
29955999812,70cyclictest0-21swapper/021:45:120
29955999811,75cyclictest0-21swapper/019:10:210
29955999811,72cyclictest0-21swapper/021:50:220
29955999713,72cyclictest0-21swapper/021:35:120
29955999712,69cyclictest0-21swapper/022:20:110
29955999711,71cyclictest0-21swapper/000:20:130
29955999710,74cyclictest0-21swapper/000:05:120
2995599969,72cyclictest0-21swapper/020:20:120
29955999612,69cyclictest0-21swapper/022:50:160
29955999612,67cyclictest0-21swapper/020:25:120
29955999611,68cyclictest0-21swapper/023:05:220
29955999611,66cyclictest0-21swapper/021:15:130
29955999610,69cyclictest0-21swapper/020:15:140
2995599959,70cyclictest0-21swapper/019:55:120
29955999513,69cyclictest0-21swapper/000:30:130
29955999512,65cyclictest0-21swapper/023:25:140
29955999512,65cyclictest0-21swapper/000:10:140
29955999511,69cyclictest0-21swapper/022:15:120
29955999413,65cyclictest0-21swapper/023:50:140
29955999413,65cyclictest0-21swapper/019:25:130
29955999413,65cyclictest0-21swapper/019:25:130
29955999412,65cyclictest0-21swapper/023:45:130
29955999412,65cyclictest0-21swapper/023:00:110
29955999412,62cyclictest0-21swapper/019:30:140
29955999410,66cyclictest0-21swapper/020:00:120
2995599929,65cyclictest0-21swapper/022:45:160
2996499909,64cyclictest0-21swapper/100:30:111
29964998810,63cyclictest0-21swapper/123:50:111
29964998511,57cyclictest0-21swapper/120:45:141
29964998410,56cyclictest0-21swapper/120:15:121
29964998410,53cyclictest0-21swapper/100:15:121
2974627719,48sleep00-21swapper/019:09:060
2958127739,23sleep10-21swapper/119:07:521
29964997632,26cyclictest0-21swapper/122:10:141
29964997632,26cyclictest0-21swapper/122:10:141
29964997415,34cyclictest0-21swapper/119:15:251
29964997110,42cyclictest26-21ksoftirqd/123:15:121
29964997010,39cyclictest30345-21apt-get19:10:151
29964996717,29cyclictest0-21swapper/119:25:101
29964996717,29cyclictest0-21swapper/119:25:101
29964996620,10cyclictest26-21ksoftirqd/121:25:201
29964996515,30cyclictest0-21swapper/119:30:131
29964996514,30cyclictest0-21swapper/122:50:131
29964996512,32cyclictest0-21swapper/100:35:121
29964996511,34cyclictest0-21swapper/121:20:221
29964996410,32cyclictest0-21swapper/119:55:121
29964996315,31cyclictest0-21swapper/122:45:131
29964996111,29cyclictest0-21swapper/123:05:231
29964996032,20cyclictest5632-21cron00:05:001
29964996011,29cyclictest0-21swapper/123:00:131
29964995916,37cyclictest26-21ksoftirqd/100:25:011
2996499584,46cyclictest9245-21python321:10:351
29964995839,10cyclictest26-21ksoftirqd/121:40:171
2996499583,26cyclictest13104-21forks19:50:211
29964995819,20cyclictest26-21ksoftirqd/120:50:221
29964995810,42cyclictest0-21swapper/121:55:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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