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2026-06-05 - 04:26
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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 05, 2026 00:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25877999954,23cyclictest14-21ksoftirqd/023:20:150
25883999266,14cyclictest26-21ksoftirqd/121:30:131
25883999266,14cyclictest26-21ksoftirqd/121:30:131
25883999266,13cyclictest26-21ksoftirqd/119:40:221
25883999162,17cyclictest26-21ksoftirqd/122:30:121
2587799905,65cyclictest0-21swapper/022:55:130
25883998758,17cyclictest26-21ksoftirqd/100:05:161
25883998656,19cyclictest26-21ksoftirqd/121:50:241
25883998656,18cyclictest26-21ksoftirqd/123:45:151
25877998647,21cyclictest14-21ksoftirqd/019:55:130
227012860,8sleep014-21ksoftirqd/020:25:470
309752840,4chrt0-21swapper/022:20:340
25883998359,15cyclictest26-21ksoftirqd/120:10:111
25883998354,20cyclictest26-21ksoftirqd/119:45:231
25883998350,21cyclictest26-21ksoftirqd/100:20:141
251352824,65sleep025211-21users19:05:290
25883998143,24cyclictest26-21ksoftirqd/120:05:131
25883997748,18cyclictest26-21ksoftirqd/119:20:141
25883997745,21cyclictest26-21ksoftirqd/119:10:141
25883997745,18cyclictest0-21swapper/121:35:121
25883997531,14cyclictest26-21ksoftirqd/120:20:001
25877997442,17cyclictest14-21ksoftirqd/000:00:010
25883997339,23cyclictest26-21ksoftirqd/122:35:141
25883997324,44cyclictest26-21ksoftirqd/122:05:191
25883997244,16cyclictest0-21swapper/120:25:111
25883997240,19cyclictest0-21swapper/119:30:111
25883997142,18cyclictest0-21swapper/123:50:151
25883997142,18cyclictest0-21swapper/100:10:111
25877997128,8cyclictest14-21ksoftirqd/023:50:180
2565727117,31sleep10-21swapper/119:09:051
25883997042,17cyclictest0-21swapper/122:20:111
25883997037,21cyclictest26-21ksoftirqd/119:25:131
25883996940,20cyclictest26-21ksoftirqd/100:15:141
25883996930,33cyclictest0-21swapper/123:30:231
25883996923,40cyclictest26-21ksoftirqd/122:54:281
25883996836,21cyclictest0-21swapper/119:50:231
25883996821,41cyclictest26-21ksoftirqd/121:41:361
25877996847,12cyclictest14-21ksoftirqd/000:20:130
25883996739,17cyclictest0-21swapper/123:35:141
25883996736,18cyclictest0-21swapper/120:55:101
25883996735,22cyclictest26-21ksoftirqd/119:15:121
25883996733,9cyclictest26-21ksoftirqd/100:35:571
25883996722,39cyclictest26-21ksoftirqd/122:49:281
25883996722,39cyclictest26-21ksoftirqd/122:49:281
25877996638,20cyclictest14-21ksoftirqd/021:50:120
25877996611,38cyclictest0-21swapper/022:00:130
25883996539,16cyclictest0-21swapper/123:55:131
25883996432,19cyclictest0-21swapper/122:00:161
2587799646,41cyclictest0-21swapper/022:40:110
25877996435,11cyclictest14-21ksoftirqd/021:20:000
25877996420,15cyclictest14-21ksoftirqd/000:00:110
25877996325,15cyclictest11129-21aten2.4-expect00:30:130
25877996322,17cyclictest9395-21aten2.4-expect00:25:170
2588399629,42cyclictest12467-21chrt20:00:121
2588399623,9cyclictest360-40mandb00:00:051
25883996236,16cyclictest0-21swapper/121:45:151
2588399623,51cyclictest5465-21processes22:40:321
25883996229,19cyclictest0-21swapper/120:40:131
25883996218,32cyclictest26-21ksoftirqd/121:05:131
25883996213,35cyclictest0-21swapper/122:25:151
25883996211,38cyclictest0-21swapper/123:40:121
25877996239,17cyclictest14-21ksoftirqd/020:50:290
25877996226,13cyclictest14-21ksoftirqd/020:20:000
25877996222,16cyclictest1810-21aten2.4-expect21:00:160
25883996132,18cyclictest0-21swapper/120:20:251
25883996129,26cyclictest26-21ksoftirqd/123:15:591
25883996118,10cyclictest26-21ksoftirqd/119:36:081
25877996139,8cyclictest14-21ksoftirqd/020:30:330
25877996127,29cyclictest14-21ksoftirqd/022:25:350
287442600,8chrt0-21swapper/120:45:041
25883996029,19cyclictest0-21swapper/120:30:111
25883996027,20cyclictest0-21swapper/123:05:131
25883996020,34cyclictest26-21ksoftirqd/120:55:011
25883996015,35cyclictest0-21swapper/122:55:141
2587799608,35cyclictest0-21swapper/022:10:140
2587799608,35cyclictest0-21swapper/022:10:140
25877996038,8cyclictest14-21ksoftirqd/019:40:300
25877996035,19cyclictest14-21ksoftirqd/020:11:420
87882590,25sleep0171rcuc/019:50:040
2588399595,13cyclictest11639-21apt-get23:00:121
2588399594,40cyclictest26-21ksoftirqd/121:20:131
25883995932,14cyclictest0-21swapper/122:15:111
25883995929,19cyclictest0-21swapper/121:55:151
25883995929,15cyclictest26-21ksoftirqd/122:15:001
25883995929,15cyclictest26-21ksoftirqd/122:14:591
25883995928,22cyclictest503-21snmpd21:11:241
25883995913,41cyclictest26-21ksoftirqd/120:35:241
25883995910,37cyclictest26-21ksoftirqd/121:25:161
2587799598,37cyclictest0-21swapper/021:40:130
25877995941,11cyclictest14-21ksoftirqd/020:25:010
25877995935,18cyclictest14-21ksoftirqd/023:05:330
25877995926,8cyclictest14-21ksoftirqd/020:45:340
25877995914,38cyclictest25045-21aten2.4-expect20:35:160
2587799587,13cyclictest0-21swapper/019:25:140
25877995836,8cyclictest14-21ksoftirqd/022:45:170
25877995836,8cyclictest14-21ksoftirqd/022:45:170
25877995836,8cyclictest14-21ksoftirqd/020:40:190
25877995834,9cyclictest14-21ksoftirqd/019:20:170
25883995728,15cyclictest26-21ksoftirqd/100:30:011
2587799578,44cyclictest0-21swapper/023:40:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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