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2026-06-28 - 16:53
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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
Characteristics of the 100 highest latencies:
System rack7slot1.osadl.org (updated Sun Jun 28, 2026 12:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4557211654,22sleep20-21swapper/207:09:572
4279211652,58sleep10-21swapper/107:06:381
4564211453,23sleep00-21swapper/007:09:590
190012890,1sleep025560-21stress10:05:390
420628459,20sleep30-21swapper/307:05:433
69262520,1sleep025560-21stress12:08:240
240382500,1sleep125558-21stress11:35:001
466799425,17cyclictest0-21swapper/212:13:252
142662410,2sleep225557-21stress12:25:192
142662410,2sleep225557-21stress12:25:192
466799409,28cyclictest0-21swapper/209:32:482
466799406,23cyclictest0-21swapper/209:53:032
466799406,23cyclictest0-21swapper/209:53:032
466599396,21cyclictest0-21swapper/010:55:110
233972395,13sleep30-21swapper/309:05:023
466799388,27cyclictest0-21swapper/210:50:212
4667993815,20cyclictest0-21swapper/211:12:252
231432385,13sleep20-21swapper/209:03:172
158662385,13sleep10-21swapper/107:30:251
11142387,12sleep30-21swapper/308:11:443
54692375,13sleep10-21swapper/108:20:291
4667993715,19cyclictest0-21swapper/211:02:062
4667993715,19cyclictest0-21swapper/211:02:062
466699378,26cyclictest0-21swapper/111:25:181
4666993713,22cyclictest0-21swapper/112:30:091
4666993713,22cyclictest0-21swapper/110:23:251
4666993711,24cyclictest0-21swapper/111:15:231
4666993710,25cyclictest0-21swapper/110:50:311
4666993710,18cyclictest0-21swapper/108:05:231
4665993716,19cyclictest0-21swapper/009:00:130
292542375,13sleep20-21swapper/208:03:462
290312375,13sleep30-21swapper/308:00:583
268592375,13sleep10-21swapper/107:55:511
100792376,12sleep30-21swapper/308:33:223
100792376,12sleep30-21swapper/308:33:213
96652365,12sleep30-21swapper/307:18:483
466799365,20cyclictest0-21swapper/212:03:512
466799364,24cyclictest0-21swapper/208:45:242
4667993617,16cyclictest0-21swapper/210:26:532
4667993617,16cyclictest0-21swapper/210:26:532
4667993615,18cyclictest0-21swapper/209:45:262
466599368,19cyclictest0-21swapper/007:30:160
35012364,13sleep10-21swapper/108:18:161
271522365,12sleep30-21swapper/307:59:303
144072364,13sleep30-21swapper/308:43:093
140062365,13sleep00-21swapper/007:28:520
120692365,13sleep00-21swapper/008:36:120
100662365,13sleep10-21swapper/108:33:121
100662365,13sleep10-21swapper/108:33:111
95582354,11sleep20-21swapper/207:17:272
82522353,28sleep025558-21stress09:42:040
4668993512,20cyclictest0-21swapper/311:33:173
4667993513,20cyclictest0-21swapper/210:15:242
466699356,15cyclictest0-21swapper/110:43:311
466699356,14cyclictest0-21swapper/110:05:271
4666993521,11cyclictest0-21swapper/111:54:391
466599359,20cyclictest0-21swapper/008:55:060
466599356,26cyclictest0-21swapper/010:30:320
466599356,26cyclictest0-21swapper/010:30:310
466599356,19cyclictest0-21swapper/008:20:200
466599355,18cyclictest0-21swapper/008:40:240
4665993517,15cyclictest0-21swapper/009:48:290
4665993516,16cyclictest0-21swapper/011:15:180
4665993515,18cyclictest0-21swapper/008:15:490
4665993514,19cyclictest0-21swapper/007:50:050
4665993511,22cyclictest0-21swapper/011:55:480
260332355,13sleep00-21swapper/007:55:170
229622354,13sleep10-21swapper/109:00:581
209362355,12sleep30-21swapper/308:57:563
112082350,1sleep325558-21stress12:17:573
112082350,1sleep325558-21stress12:17:573
4668993414,17cyclictest0-21swapper/309:11:053
4668993414,17cyclictest0-21swapper/309:11:053
4668993411,20cyclictest0-21swapper/311:37:253
466799349,23cyclictest0-21swapper/212:30:142
466799345,22cyclictest0-21swapper/208:54:252
466799344,23cyclictest0-21swapper/208:58:402
466799344,23cyclictest0-21swapper/208:19:152
4667993418,13cyclictest0-21swapper/210:55:192
4667993416,15cyclictest0-21swapper/210:00:202
4667993415,16cyclictest0-21swapper/211:15:022
4667993412,19cyclictest0-21swapper/209:55:222
4667993412,19cyclictest0-21swapper/209:55:222
4667993410,22cyclictest0-21swapper/212:38:502
466699349,22cyclictest0-21swapper/110:10:181
466699348,24cyclictest0-21swapper/109:40:311
466699347,25cyclictest0-21swapper/111:40:201
466699347,25cyclictest0-21swapper/111:40:191
466699345,27cyclictest0-21swapper/109:35:201
4666993415,17cyclictest0-21swapper/112:27:431
4666993415,17cyclictest0-21swapper/112:27:421
466599348,24cyclictest0-21swapper/007:44:020
466599348,19cyclictest0-21swapper/009:05:060
466599348,19cyclictest0-21swapper/008:06:320
4665993419,14cyclictest0-21swapper/008:34:320
4665993419,14cyclictest0-21swapper/008:34:320
4665993417,14cyclictest0-21swapper/011:54:490
4665993416,15cyclictest0-21swapper/012:00:150
4665993415,18cyclictest0-21swapper/008:00:050
4665993415,16cyclictest0-21swapper/011:25:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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