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2026-05-01 - 21:58
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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 Fri May 01, 2026 12:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22100999364,15cyclictest14-21ksoftirqd/011:50:130
2143529335,42sleep00-21swapper/007:05:300
22100998916,55cyclictest0-21swapper/010:55:120
22100998864,13cyclictest14-21ksoftirqd/010:40:110
22100998812,68cyclictest0-21swapper/007:35:100
22100998669,9cyclictest14-21ksoftirqd/012:35:110
2210099865,64cyclictest11454-21apt-get08:10:130
22100998615,56cyclictest0-21swapper/007:45:130
22100998514,57cyclictest0-21swapper/010:30:110
2210099847,65cyclictest26207-21apt-get07:20:100
22100998414,59cyclictest0-21swapper/007:40:120
22100998414,54cyclictest0-21swapper/007:15:140
22100998413,57cyclictest0-21swapper/012:25:130
22100998413,56cyclictest0-21swapper/008:35:130
2210099837,69cyclictest0-21swapper/007:25:130
22100998314,61cyclictest0-21swapper/008:30:130
22100998313,59cyclictest0-21swapper/009:35:130
22100998313,58cyclictest0-21swapper/011:55:120
2164428322,16sleep10-21swapper/107:07:021
2210099827,64cyclictest21988-21apt-get08:40:130
2210099827,63cyclictest19654-21apt-get11:35:120
2210099826,65cyclictest13195-21apt-get08:15:140
22100998252,19cyclictest14-21ksoftirqd/011:30:100
22100998214,55cyclictest0-21swapper/010:00:210
22100998212,58cyclictest0-21swapper/007:55:110
2210099816,61cyclictest7928-21apt-get08:00:110
2210099812,73cyclictest22188-21/usr/sbin/munin07:10:370
22100998118,51cyclictest0-21swapper/009:25:110
22100998117,52cyclictest0-21swapper/009:45:140
22100998114,58cyclictest0-21swapper/010:20:130
2210099807,60cyclictest23760-21apt-get10:15:150
22100998049,17cyclictest14-21ksoftirqd/012:00:120
22100998018,55cyclictest0-21swapper/010:25:120
22100998017,55cyclictest0-21swapper/008:55:110
22100998013,52cyclictest0-21swapper/009:10:140
2210099797,59cyclictest3666-21apt-get12:20:120
2210099796,63cyclictest14442-21apt-get11:20:140
2210099796,58cyclictest16423-21apt-get09:55:100
2210099793,69cyclictest455-21rs:main0
2210099793,34cyclictest30860-21grep09:05:010
22100997914,55cyclictest0-21swapper/011:00:140
2210099788,58cyclictest20226-21apt-get10:05:120
2210099787,58cyclictest14958-21apt-get08:20:120
2210099787,56cyclictest16176-21apt-get11:25:120
22100997817,51cyclictest0-21swapper/010:45:120
22100997816,52cyclictest0-21swapper/009:50:210
22100997814,54cyclictest0-21swapper/012:10:120
2210099778,54cyclictest31042-21apt-get10:35:230
2210099777,60cyclictest7143-21apt-get12:30:140
2210099777,60cyclictest7143-21apt-get12:30:140
2210099777,59cyclictest10938-21apt-get11:10:110
2210099777,53cyclictest22019-21apt-get10:10:120
2210099773,20cyclictest5551-21unixbench_singl07:50:360
22100997713,50cyclictest0-21swapper/009:15:130
2210099766,59cyclictest31010-21apt-get09:05:130
2210099766,55cyclictest9151-21apt-get11:05:110
22100997647,19cyclictest14-21ksoftirqd/008:25:140
22100997619,52cyclictest8384-21grep09:30:350
2210099757,53cyclictest12677-21apt-get11:15:130
2210099756,56cyclictest25470-21apt-get08:50:130
2210099756,55cyclictest23516-21apt-get11:45:140
22100997520,50cyclictest243-21systemd-journal12:19:410
22105997412,13cyclictest0-21swapper/112:05:221
2210099743,62cyclictest5015-21users09:20:350
2210099743,62cyclictest5015-21users09:20:350
2210099743,62cyclictest10933-21basename09:40:150
22100997414,49cyclictest0-21swapper/008:45:130
2210099738,51cyclictest30795-21apt-get12:05:230
22100997320,45cyclictest457-21dbus-daemon11:45:000
2210099727,51cyclictest3911-21apt-get10:50:100
2210099726,52cyclictest9667-21apt-get08:05:140
2210599645,32cyclictest0-21swapper/107:37:491
2210599642,14cyclictest151rcu_preempt11:35:151
2210599642,13cyclictest151rcu_preempt07:45:251
152072640,8sleep1251rcuc/108:20:181
22105996329,20cyclictest26-21ksoftirqd/109:20:101
22105996329,20cyclictest26-21ksoftirqd/109:20:101
22105996215,42cyclictest0-21swapper/112:20:141
2210599616,33cyclictest14461-21gpgv09:50:031
22105996019,36cyclictest26-21ksoftirqd/111:40:071
22105996013,11cyclictest0-21swapper/110:35:301
22105996012,42cyclictest0-21swapper/111:10:191
2210599598,12cyclictest0-21swapper/108:50:121
2210599586,36cyclictest0-21swapper/112:35:351
22105995840,12cyclictest0-21swapper/110:40:591
22105995817,35cyclictest0-21swapper/108:55:371
287122570,8sleep122092-21cyclictest07:25:321
2210599566,20cyclictest0-21swapper/109:30:331
22105995614,37cyclictest0-21swapper/112:30:131
22105995614,37cyclictest0-21swapper/112:30:131
22105995614,37cyclictest0-21swapper/107:10:141
2210599559,11cyclictest0-21swapper/107:55:301
2210599558,42cyclictest8653-21runrttasks08:00:281
2210599558,41cyclictest0-21swapper/109:55:171
22105995513,37cyclictest26-21ksoftirqd/111:55:201
89932540,10sleep1251rcuc/111:05:001
2210599548,32cyclictest0-21swapper/108:10:131
2210599548,10cyclictest0-21swapper/110:00:301
2210599545,21cyclictest0-21swapper/111:47:511
22105995424,18cyclictest5651-21apt-get10:55:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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