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2026-03-28 - 19:51
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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 Sat Mar 28, 2026 12:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2159121580,1sleep1568-21stress12:30:131
13017211453,55sleep30-21swapper/307:07:303
12890211055,19sleep20-21swapper/207:05:522
1306229850,43sleep00-21swapper/007:08:030
1304329552,38sleep10-21swapper/107:07:481
279802660,1sleep2568-21stress10:10:502
81692550,1sleep0570-21stress11:57:460
13324994612,31cyclictest0-21swapper/012:12:070
13324994415,26cyclictest0-21swapper/011:12:060
231562400,1sleep2570-21stress12:33:252
13324994011,26cyclictest0-21swapper/011:33:260
13324993911,25cyclictest0-21swapper/010:43:290
221562385,12sleep20-21swapper/208:43:252
13325993815,21cyclictest0-21swapper/112:13:111
13324993811,24cyclictest0-21swapper/010:55:260
13324993810,25cyclictest0-21swapper/011:35:070
13324993810,25cyclictest0-21swapper/011:35:060
112972385,13sleep20-21swapper/208:16:272
70642374,13sleep00-21swapper/008:06:580
292242375,13sleep20-21swapper/207:45:082
283752375,12sleep20-21swapper/208:56:242
265182375,13sleep30-21swapper/308:54:453
242802375,13sleep00-21swapper/008:48:200
200862375,13sleep20-21swapper/207:20:372
177562374,13sleep20-21swapper/208:31:472
13326993710,24cyclictest0-21swapper/211:53:342
13324993715,20cyclictest0-21swapper/012:22:230
13324993712,22cyclictest0-21swapper/010:30:390
13324993712,22cyclictest0-21swapper/010:30:390
13324993712,15cyclictest0-21swapper/011:50:120
13324993710,25cyclictest0-21swapper/010:10:140
13324993710,25cyclictest0-21swapper/009:12:000
13324993710,24cyclictest0-21swapper/012:28:540
75732365,12sleep00-21swapper/008:10:120
283362365,13sleep10-21swapper/108:55:551
265732365,12sleep20-21swapper/207:36:332
262012365,13sleep20-21swapper/208:50:432
245952364,12sleep20-21swapper/207:33:322
199972365,12sleep20-21swapper/208:38:202
198102364,13sleep30-21swapper/308:35:563
155372365,12sleep20-21swapper/208:25:562
155372365,12sleep20-21swapper/208:25:562
13327993619,15cyclictest0-21swapper/312:40:013
13326993616,18cyclictest0-21swapper/209:15:582
13326993610,23cyclictest0-21swapper/211:25:592
13326993610,23cyclictest0-21swapper/210:38:072
13324993614,19cyclictest0-21swapper/012:15:340
203072355,13sleep30-21swapper/307:23:223
157672355,12sleep00-21swapper/008:28:510
157672355,12sleep00-21swapper/008:28:510
155952355,13sleep30-21swapper/308:26:393
155952355,13sleep30-21swapper/308:26:383
135752355,12sleep30-21swapper/308:23:063
13327993511,21cyclictest0-21swapper/311:20:453
1332699356,26cyclictest0-21swapper/210:06:512
13326993515,17cyclictest0-21swapper/210:42:402
13325993516,16cyclictest0-21swapper/112:29:351
13325993514,19cyclictest0-21swapper/110:00:361
13325993514,19cyclictest0-21swapper/110:00:351
13324993517,16cyclictest0-21swapper/010:05:070
13324993516,17cyclictest0-21swapper/011:00:170
13324993516,17cyclictest0-21swapper/009:15:070
13324993516,16cyclictest0-21swapper/011:25:290
13324993514,19cyclictest0-21swapper/011:20:360
13324993510,23cyclictest0-21swapper/012:00:140
13324993510,23cyclictest0-21swapper/009:33:100
7692344,10sleep30-21swapper/307:54:463
50722343,12sleep30-21swapper/308:04:133
224382345,12sleep20-21swapper/207:28:102
219432345,12sleep00-21swapper/008:40:430
180782344,10sleep20-21swapper/207:17:052
13327993419,13cyclictest0-21swapper/310:40:293
13327993416,15cyclictest0-21swapper/310:59:403
13327993413,18cyclictest0-21swapper/309:36:223
13327993411,20cyclictest0-21swapper/312:18:113
13327993411,20cyclictest0-21swapper/309:56:033
13326993415,16cyclictest0-21swapper/209:54:462
13326993415,16cyclictest0-21swapper/209:54:462
13326993410,21cyclictest0-21swapper/210:49:142
1332499349,22cyclictest0-21swapper/009:40:180
13324993414,18cyclictest0-21swapper/012:30:110
93112334,10sleep30-21swapper/308:13:223
3632334,10sleep30-21swapper/309:08:323
308572335,10sleep00-21swapper/007:46:500
306092334,10sleep30-21swapper/309:02:343
283832334,10sleep00-21swapper/008:56:300
27122334,10sleep30-21swapper/307:56:473
198132335,10sleep10-21swapper/108:35:581
178012334,10sleep00-21swapper/008:32:210
1332799339,21cyclictest0-21swapper/310:50:563
13327993319,12cyclictest0-21swapper/312:20:133
13327993315,16cyclictest0-21swapper/310:25:253
13327993315,15cyclictest0-21swapper/311:45:383
13327993313,18cyclictest0-21swapper/309:45:293
13327993313,18cyclictest0-21swapper/309:26:223
13326993317,13cyclictest0-21swapper/211:41:102
13326993317,13cyclictest0-21swapper/211:41:092
13326993315,15cyclictest0-21swapper/212:01:562
13326993314,16cyclictest0-21swapper/212:05:152
13326993312,18cyclictest0-21swapper/211:45:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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