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2026-06-20 - 01:29
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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 Fri Jun 19, 2026 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
859211656,55sleep10-21swapper/107:06:411
774211553,56sleep30-21swapper/307:05:383
849211050,20sleep20-21swapper/207:06:332
111828556,24sleep00-21swapper/007:09:250
212352405,13sleep20-21swapper/207:50:252
127299409,28cyclictest0-21swapper/309:35:033
1272993915,21cyclictest0-21swapper/309:45:233
1272993915,21cyclictest0-21swapper/309:45:233
1271993917,19cyclictest0-21swapper/210:30:472
126999396,25cyclictest0-21swapper/010:50:150
126999396,25cyclictest0-21swapper/010:50:150
83632385,13sleep20-21swapper/207:21:502
194412385,13sleep20-21swapper/207:49:292
1272993819,16cyclictest0-21swapper/309:55:323
1272993817,18cyclictest0-21swapper/312:10:323
127199386,18cyclictest0-21swapper/210:15:142
127199386,18cyclictest0-21swapper/210:15:132
303632375,13sleep20-21swapper/208:14:512
173372375,13sleep10-21swapper/108:55:281
132942375,13sleep20-21swapper/208:49:352
129262375,13sleep00-21swapper/007:34:460
129262375,13sleep00-21swapper/007:34:460
1272993719,15cyclictest0-21swapper/310:40:013
1272993717,17cyclictest0-21swapper/311:25:213
1272993717,17cyclictest0-21swapper/310:45:243
1272993717,17cyclictest0-21swapper/310:45:233
1272993717,17cyclictest0-21swapper/309:20:323
1272993716,18cyclictest0-21swapper/311:45:183
1272993714,21cyclictest0-21swapper/310:55:313
1272993714,21cyclictest0-21swapper/310:55:313
126999379,23cyclictest0-21swapper/008:35:070
196212365,13sleep20-21swapper/209:02:032
155672365,10sleep20-21swapper/208:55:012
1272993616,17cyclictest0-21swapper/312:30:303
127099365,22cyclictest0-21swapper/112:07:291
1270993610,19cyclictest0-21swapper/110:45:541
1270993610,19cyclictest0-21swapper/110:45:531
126999369,19cyclictest0-21swapper/007:35:490
126999364,22cyclictest0-21swapper/010:15:110
126999364,22cyclictest0-21swapper/010:15:110
1269993615,19cyclictest0-21swapper/012:38:500
1269993615,19cyclictest0-21swapper/010:36:430
1269993615,19cyclictest0-21swapper/009:37:340
1269993615,19cyclictest0-21swapper/009:37:330
108332365,13sleep10-21swapper/108:40:561
65852355,13sleep10-21swapper/108:31:551
1272993521,12cyclictest0-21swapper/309:12:303
1272993518,15cyclictest0-21swapper/309:10:023
1272993518,15cyclictest0-21swapper/309:10:023
1272993518,14cyclictest0-21swapper/312:25:283
1272993517,15cyclictest0-21swapper/312:35:283
1272993516,16cyclictest0-21swapper/311:15:243
1272993515,18cyclictest0-21swapper/311:40:283
1272993515,17cyclictest0-21swapper/310:50:183
1272993515,17cyclictest0-21swapper/310:50:173
1272993515,17cyclictest0-21swapper/310:20:313
1272993515,17cyclictest0-21swapper/310:20:303
1271993517,16cyclictest0-21swapper/212:24:092
1271993512,20cyclictest0-21swapper/210:23:242
1271993512,20cyclictest0-21swapper/210:23:242
1270993510,19cyclictest0-21swapper/108:10:051
1270993510,18cyclictest0-21swapper/107:25:101
126999356,23cyclictest0-21swapper/007:20:180
1269993513,14cyclictest0-21swapper/010:23:480
1269993513,14cyclictest0-21swapper/010:23:480
1269993512,21cyclictest0-21swapper/009:40:230
1269993512,20cyclictest0-21swapper/012:18:350
1269993510,22cyclictest0-21swapper/010:49:220
1269993510,22cyclictest0-21swapper/010:49:220
88282345,13sleep10-21swapper/108:37:431
150722345,10sleep20-21swapper/207:39:192
128862345,10sleep20-21swapper/207:34:162
128862345,10sleep20-21swapper/207:34:162
1272993419,13cyclictest0-21swapper/308:01:033
1272993417,14cyclictest0-21swapper/311:10:133
1272993417,14cyclictest0-21swapper/310:10:203
1272993416,16cyclictest0-21swapper/311:50:203
1272993416,16cyclictest0-21swapper/309:15:183
1272993416,15cyclictest0-21swapper/310:00:353
1272993415,16cyclictest0-21swapper/311:20:323
1272993415,16cyclictest0-21swapper/311:20:313
1272993415,16cyclictest0-21swapper/310:40:243
1272993415,16cyclictest0-21swapper/310:25:153
1272993415,16cyclictest0-21swapper/309:35:193
1272993415,16cyclictest0-21swapper/309:35:183
1272993414,17cyclictest0-21swapper/312:20:253
1271993416,15cyclictest0-21swapper/209:14:082
1271993412,19cyclictest0-21swapper/211:30:392
1270993414,17cyclictest0-21swapper/112:30:231
126999346,23cyclictest0-21swapper/007:40:120
126999345,26cyclictest0-21swapper/012:02:340
126999345,26cyclictest0-21swapper/012:02:340
126999345,23cyclictest0-21swapper/008:20:180
126999345,22cyclictest0-21swapper/008:45:230
126999345,19cyclictest0-21swapper/008:55:000
1269993414,18cyclictest0-21swapper/009:12:550
1269993411,15cyclictest0-21swapper/009:55:290
110312345,10sleep00-21swapper/008:43:290
64572335,10sleep10-21swapper/107:19:571
280632335,12sleep20-21swapper/208:08:422
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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