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2026-09-08 - 10:42
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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 Tue Sep 08, 2026 00:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
285159910149,40cyclictest0-21swapper/020:45:120
26752210131,24sleep10-21swapper/119:05:051
28515999565,17cyclictest0-21swapper/022:40:130
28515999267,14cyclictest14-21ksoftirqd/023:40:120
28515999116,60cyclictest0-21swapper/000:10:150
28515999058,19cyclictest14-21ksoftirqd/023:25:160
28515998960,19cyclictest14-21ksoftirqd/021:10:140
282272895,22sleep00-21swapper/019:08:570
2851599887,70cyclictest1978-21apt-get19:25:130
28515998860,19cyclictest14-21ksoftirqd/021:20:140
28515998758,18cyclictest14-21ksoftirqd/021:35:150
28515998756,17cyclictest14-21ksoftirqd/022:10:160
28515998716,61cyclictest0-21swapper/021:45:140
28515998716,57cyclictest0-21swapper/021:40:140
28515998715,56cyclictest0-21swapper/019:35:140
28515998714,63cyclictest0-21swapper/021:00:170
2851599867,67cyclictest20705-21apt-get21:50:120
28515998654,20cyclictest14-21ksoftirqd/023:20:120
28515998626,54cyclictest0-21swapper/000:20:010
28515998614,57cyclictest0-21swapper/021:30:160
2851599858,65cyclictest9009-21apt-get19:45:140
2851599857,67cyclictest32663-21apt-get19:20:120
2851599857,62cyclictest24749-21apt-get20:30:130
28515998554,19cyclictest14-21ksoftirqd/019:40:130
28515998529,43cyclictest0-21swapper/023:55:120
28515998529,43cyclictest0-21swapper/023:55:120
28515998520,45cyclictest2247-21aten2.4-expect00:00:170
28515998518,56cyclictest0-21swapper/000:25:130
28515998515,61cyclictest0-21swapper/019:10:130
28515998515,55cyclictest0-21swapper/000:05:110
28515998513,61cyclictest0-21swapper/023:10:170
2851599847,65cyclictest10747-21apt-get19:50:140
2851599847,65cyclictest10747-21apt-get19:50:140
2851599846,69cyclictest25686-21apt-get23:35:110
28515998429,42cyclictest29242-21apt-get23:45:150
28515998416,57cyclictest0-21swapper/022:15:120
2851599839,65cyclictest23008-21apt-get20:25:130
2851599836,66cyclictest18700-21apt-get23:15:140
28515998316,62cyclictest30967-21aten2.4-expect19:15:160
28515998313,57cyclictest0-21swapper/022:05:140
28515998313,56cyclictest0-21swapper/022:00:110
28515998313,56cyclictest0-21swapper/000:35:130
28515998215,55cyclictest0-21swapper/020:40:140
2851599817,64cyclictest14243-21apt-get20:00:130
2851599816,61cyclictest19512-21apt-get20:15:130
28515998120,54cyclictest12033-21aten2.4-expect21:25:150
28515998120,54cyclictest12033-21aten2.4-expect21:25:150
28515998117,52cyclictest0-21swapper/020:55:130
28515998114,57cyclictest0-21swapper/023:50:180
28515998015,58cyclictest0-21swapper/000:20:150
28515998014,55cyclictest0-21swapper/022:55:130
28515998014,55cyclictest0-21swapper/020:05:130
28515998013,56cyclictest0-21swapper/021:05:160
28515998013,52cyclictest0-21swapper/023:30:130
2851599797,18cyclictest4645-21apt-get22:35:230
2851599796,61cyclictest3720-21apt-get19:30:150
2851599796,58cyclictest17773-21apt-get20:10:130
28515997914,58cyclictest0-21swapper/020:50:100
28515997914,58cyclictest0-21swapper/020:50:100
2851599786,57cyclictest9940-21apt-get22:50:180
2851599783,65cyclictest21366-21aten2.4-expect20:20:160
28515997813,54cyclictest0-21swapper/022:20:130
2851599777,54cyclictest12597-21apt-get00:30:160
2851599776,58cyclictest22745-21apt-get21:55:220
2851599776,56cyclictest26798-21apt-get20:35:250
2851599776,56cyclictest15173-21apt-get23:05:150
2851599776,55cyclictest8197-21apt-get22:45:160
2851599772,66cyclictest243-21systemd-journal22:30:490
28515997612,50cyclictest0-21swapper/021:15:150
28515997612,49cyclictest0-21swapper/022:25:140
28515997520,48cyclictest243-21systemd-journal19:55:170
28520997411,37cyclictest0-21swapper/119:35:341
2851599748,52cyclictest13434-21apt-get23:00:130
251592710,6sleep125158-21needreboot22:00:241
28520996911,11cyclictest0-21swapper/123:50:171
28520996910,12cyclictest0-21swapper/120:20:111
28520996417,32cyclictest26-21ksoftirqd/119:30:131
2852099629,13cyclictest0-21swapper/121:55:231
28520996210,21cyclictest0-21swapper/120:15:421
2852099617,44cyclictest28617-21apt-get20:40:151
2852099608,37cyclictest0-21swapper/121:50:121
2852099598,38cyclictest0-21swapper/120:10:141
2852099597,37cyclictest0-21swapper/120:35:241
28520995912,42cyclictest0-21swapper/119:40:291
2852099587,37cyclictest0-21swapper/119:55:141
28520995826,20cyclictest26-21ksoftirqd/122:50:181
28520995818,26cyclictest3169-21apt-get21:00:171
28520995815,39cyclictest0-21swapper/122:20:151
28520995813,40cyclictest26-21ksoftirqd/123:05:161
2852099579,42cyclictest0-21swapper/120:45:251
2852099578,35cyclictest0-21swapper/119:25:131
28520995732,19cyclictest457-21dbus-daemon19:15:011
28520995712,40cyclictest0-21swapper/123:20:371
2852099568,33cyclictest0-21swapper/121:25:111
2852099568,33cyclictest0-21swapper/121:25:111
28520995639,11cyclictest0-21swapper/121:30:311
28520995618,28cyclictest3825-21apt-get00:05:111
2852099557,34cyclictest0-21swapper/119:20:131
28520995539,10cyclictest0-21swapper/122:25:211
28520995525,17cyclictest26-21ksoftirqd/120:00:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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