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2026-05-13 - 09:02
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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 rackeslot3.osadl.org (updated Wed May 13, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
376701997342,29cyclictest444817-21kworker/1:121:47:331
376701997243,27cyclictest380164-21kworker/1:019:40:111
376701997242,28cyclictest2190289-1kworker/1:1H21:55:141
376701997241,29cyclictest543804-21kworker/1:323:51:101
376701996752,12cyclictest400752-21cron20:25:001
376701996639,25cyclictest416459-21kworker/1:222:15:141
376701996638,26cyclictest376831-21kworker/1:319:10:141
376701996537,25cyclictest575963-21kworker/1:100:05:141
376701996460,2cyclictest0-21swapper/123:35:091
376701996440,23cyclictest2190289-1kworker/1:1H00:23:001
376701996439,23cyclictest479889-21kworker/1:322:25:001
376701996436,26cyclictest392758-21kworker/1:020:00:131
376701996436,26cyclictest385943-21kworker/1:120:05:131
376701996337,24cyclictest416459-21kworker/1:221:15:151
37670199630,1cyclictest0-21swapper/121:54:561
376701996242,18cyclictest577374-21kworker/1:300:15:141
376701996241,20cyclictest520669-21kworker/1:023:25:151
376701996235,25cyclictest603111-21kworker/1:000:35:141
376701996043,16cyclictest513489-21kworker/1:223:00:161
376701996042,17cyclictest431562-21kworker/1:321:30:151
376701996041,17cyclictest575963-21kworker/1:100:10:171
376701995955,2cyclictest0-21swapper/122:58:451
376701995944,14cyclictest465945-21kworker/1:022:12:371
376701995942,16cyclictest2190289-1kworker/1:1H00:02:581
376701995939,19cyclictest598355-21kworker/1:100:33:451
376701995937,14cyclictest2190289-1kworker/1:1H20:45:141
376701995841,16cyclictest486066-21kworker/1:122:30:131
376701995838,18cyclictest487349-21kworker/1:222:40:151
376701995742,14cyclictest591804-21kworker/1:000:25:171
376701995742,14cyclictest410239-21kworker/1:220:55:341
376701995742,14cyclictest402529-21kworker/1:020:30:451
376701995742,14cyclictest400739-21kworker/1:320:37:441
376701995742,14cyclictest400739-21kworker/1:320:37:441
376701995742,14cyclictest389934-21kworker/1:219:57:091
376701995742,14cyclictest380164-21kworker/1:019:33:141
376701995742,14cyclictest2190289-1kworker/1:1H23:41:121
376701995741,15cyclictest520669-21kworker/1:023:34:441
376701995741,15cyclictest385943-21kworker/1:119:50:141
376701995740,16cyclictest405358-21kworker/1:120:40:161
376701995739,17cyclictest385943-21kworker/1:120:15:141
376701995735,14cyclictest487349-21kworker/1:222:35:011
376701995642,14cyclictest376544-21kworker/1:219:27:041
376701995642,14cyclictest376544-21kworker/1:219:17:061
376701995641,15cyclictest405358-21kworker/1:121:10:171
376701995641,14cyclictest460305-21kworker/1:322:03:121
376701995641,14cyclictest444817-21kworker/1:121:44:441
376701995641,14cyclictest416459-21kworker/1:221:35:211
376701995641,14cyclictest416459-21kworker/1:221:29:451
376701995639,16cyclictest388145-21kworker/1:319:45:151
376701995639,16cyclictest385943-21kworker/1:120:10:211
376701995637,17cyclictest460305-21kworker/1:322:05:131
376703995550,3cyclictest3402818-1kworker/2:1H21:22:262
376701995541,14cyclictest553504-21kworker/1:123:45:151
376701995540,14cyclictest520669-21kworker/1:023:10:081
376701995540,14cyclictest479889-21kworker/1:322:20:441
376701995540,14cyclictest380164-21kworker/1:019:21:441
376701995538,16cyclictest408456-21kworker/1:020:50:141
376701995537,17cyclictest520669-21kworker/1:023:05:131
37670199550,54cyclictest0-21swapper/122:50:141
376700995550,3cyclictest514507-21kworker/0:223:08:440
376701995439,14cyclictest520669-21kworker/1:023:15:011
376701995439,14cyclictest487349-21kworker/1:222:45:431
376701995438,15cyclictest2190289-1kworker/1:1H23:55:131
376701995437,16cyclictest405358-21kworker/1:121:05:131
376701995437,16cyclictest2190289-1kworker/1:1H21:20:091
376705995349,3cyclictest3080907-1kworker/3:0H20:31:103
376705995347,3cyclictest3080907-1kworker/3:0H22:10:143
376705995346,4cyclictest3080907-1kworker/3:0H21:27:283
376703995349,3cyclictest3402818-1kworker/2:1H21:49:432
376703995349,2cyclictest508646-21kworker/2:022:52:432
376701995330,21cyclictest400739-21kworker/1:320:25:151
376700995349,3cyclictest545495-21kworker/0:223:43:430
376705995247,3cyclictest3080907-1kworker/3:0H21:19:553
376705995247,3cyclictest3080907-1kworker/3:0H00:15:143
376703995249,2cyclictest396111-21kworker/2:020:31:442
376703995247,3cyclictest528154-21kworker/2:123:19:442
376703995247,3cyclictest3402818-1kworker/2:1H20:25:142
376701995238,14cyclictest405358-21kworker/1:121:02:221
376701995237,14cyclictest532444-21kworker/1:223:20:021
376700995246,4cyclictest2731713-1kworker/0:0H22:10:010
376705995147,2cyclictest506716-21kworker/3:200:21:013
376705995147,2cyclictest3080907-1kworker/3:0H22:25:143
376705995146,3cyclictest3080907-1kworker/3:0H19:14:433
376703995146,3cyclictest3402818-1kworker/2:1H21:34:092
376700995147,3cyclictest533960-21kworker/0:023:32:510
376700995147,2cyclictest381768-21kworker/0:319:29:440
376705995046,3cyclictest3080907-1kworker/3:0H23:11:433
376705995046,3cyclictest3080907-1kworker/3:0H20:41:023
376705995046,2cyclictest506716-21kworker/3:200:30:423
376705995046,2cyclictest3080907-1kworker/3:0H00:25:153
376705995044,4cyclictest3080907-1kworker/3:0H21:02:223
376703995046,3cyclictest3402818-1kworker/2:1H23:10:272
376701995035,14cyclictest380164-21kworker/1:019:35:141
376700995046,2cyclictest447016-21kworker/0:122:28:090
376700995045,3cyclictest533960-21kworker/0:023:25:380
376700995045,3cyclictest514507-21kworker/0:223:18:310
376700995045,3cyclictest2731713-1kworker/0:0H21:54:100
376700995045,3cyclictest2731713-1kworker/0:0H20:35:110
376700995045,3cyclictest2731713-1kworker/0:0H20:35:110
376705994946,2cyclictest3080907-1kworker/3:0H19:36:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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