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2025-12-09 - 21:48
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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 Tue Dec 09, 2025 12:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1866421150,1sleep024242-21stress11:24:120
2603211451,57sleep20-21swapper/207:08:352
782210649,52sleep00-21swapper/007:05:030
259229769,23sleep30-21swapper/307:08:273
257028155,21sleep10-21swapper/107:08:091
2832994214,26cyclictest0-21swapper/310:48:173
2831994212,27cyclictest0-21swapper/210:39:482
2830994210,21cyclictest0-21swapper/111:05:071
305582415,14sleep30-21swapper/308:10:143
2830994111,16cyclictest0-21swapper/111:10:211
2830994111,16cyclictest0-21swapper/111:10:201
2831994011,26cyclictest0-21swapper/210:28:452
2831994010,27cyclictest0-21swapper/211:33:572
2831994010,27cyclictest0-21swapper/211:16:472
2831993911,25cyclictest0-21swapper/211:51:152
2831993911,25cyclictest0-21swapper/211:51:152
2831993910,26cyclictest0-21swapper/212:06:072
2831993910,26cyclictest0-21swapper/210:21:292
2831993910,26cyclictest0-21swapper/210:18:182
2831993910,26cyclictest0-21swapper/209:33:422
2830993914,22cyclictest0-21swapper/110:00:121
2830993914,22cyclictest0-21swapper/110:00:111
219852395,13sleep30-21swapper/307:50:133
77742385,13sleep20-21swapper/207:17:452
2832993815,21cyclictest0-21swapper/309:38:523
2832993815,21cyclictest0-21swapper/309:22:013
2832993815,20cyclictest0-21swapper/310:25:043
2832993814,22cyclictest0-21swapper/310:50:323
2831993811,24cyclictest0-21swapper/211:35:532
2831993811,24cyclictest0-21swapper/210:10:122
283099389,19cyclictest0-21swapper/109:15:171
283099384,17cyclictest0-21swapper/111:02:031
2830993815,20cyclictest0-21swapper/111:48:201
319502375,13sleep20-21swapper/208:10:572
2832993721,14cyclictest0-21swapper/309:40:113
2832993715,20cyclictest0-21swapper/312:31:443
2832993715,20cyclictest0-21swapper/312:31:443
2832993715,20cyclictest0-21swapper/312:20:413
2832993715,20cyclictest0-21swapper/311:07:223
2832993715,19cyclictest0-21swapper/312:35:133
283199379,25cyclictest0-21swapper/211:49:262
2831993714,20cyclictest0-21swapper/209:15:202
283099379,18cyclictest0-21swapper/111:41:431
234292375,13sleep10-21swapper/107:54:251
187812375,13sleep10-21swapper/107:41:571
187542375,13sleep30-21swapper/307:41:393
149962375,13sleep30-21swapper/308:46:283
121442375,13sleep20-21swapper/207:27:192
83132365,12sleep10-21swapper/108:30:531
48442365,13sleep20-21swapper/207:13:362
321802365,13sleep00-21swapper/008:13:480
299562365,12sleep20-21swapper/208:08:262
299532365,13sleep00-21swapper/008:08:240
2832993614,20cyclictest0-21swapper/309:58:433
2831993615,19cyclictest0-21swapper/211:26:482
2831993614,19cyclictest0-21swapper/210:40:032
2831993614,19cyclictest0-21swapper/210:40:032
2831993610,23cyclictest0-21swapper/211:05:272
282999368,26cyclictest0-21swapper/008:04:110
2829993615,18cyclictest0-21swapper/010:46:060
2829993615,18cyclictest0-21swapper/009:44:360
217752365,12sleep20-21swapper/209:02:542
106372365,12sleep10-21swapper/108:37:191
105762365,12sleep30-21swapper/308:36:333
99432355,12sleep00-21swapper/007:22:280
2832993515,18cyclictest0-21swapper/311:35:333
2832993515,18cyclictest0-21swapper/310:05:213
2832993515,18cyclictest0-21swapper/310:05:213
2832993513,20cyclictest0-21swapper/311:10:233
2832993513,20cyclictest0-21swapper/311:10:233
2831993513,19cyclictest0-21swapper/209:55:212
2831993512,20cyclictest0-21swapper/212:00:072
2830993517,16cyclictest0-21swapper/110:45:251
2830993513,20cyclictest0-21swapper/110:35:031
2830993513,19cyclictest0-21swapper/111:21:111
282999356,26cyclictest0-21swapper/011:30:480
282999356,26cyclictest0-21swapper/010:21:020
2829993519,15cyclictest0-21swapper/007:55:410
2829993515,17cyclictest0-21swapper/012:33:460
2829993515,17cyclictest0-21swapper/012:33:450
2829993515,16cyclictest0-21swapper/011:43:520
2829993515,16cyclictest0-21swapper/010:25:100
212162355,12sleep00-21swapper/007:49:340
150422355,12sleep00-21swapper/008:46:560
120322355,12sleep10-21swapper/107:25:591
77472345,12sleep30-21swapper/307:17:263
45222345,10sleep10-21swapper/108:25:081
39232345,10sleep10-21swapper/108:21:081
2832993415,17cyclictest0-21swapper/312:03:373
2832993412,20cyclictest0-21swapper/309:25:263
2832993411,20cyclictest0-21swapper/310:16:153
2831993411,20cyclictest0-21swapper/209:40:252
2830993414,17cyclictest0-21swapper/112:14:081
282999349,23cyclictest0-21swapper/008:34:160
2829993419,14cyclictest0-21swapper/008:26:020
2829993416,15cyclictest0-21swapper/009:35:040
2829993415,16cyclictest0-21swapper/011:10:160
2829993415,16cyclictest0-21swapper/011:10:160
2829993415,16cyclictest0-21swapper/010:40:190
2829993415,16cyclictest0-21swapper/010:40:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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