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2025-12-08 - 19:13

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #0

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.

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 376 highest latencies:
System r0s0s.osadl.org (updated Mon Dec 08, 2025 12:46:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2094882321315,3sleep10-21swapper/107:05:281
2102382300274,19sleep00-21swapper/007:07:200
2102892299278,18sleep20-21swapper/207:08:022
2102032295256,12sleep50-21swapper/507:06:525
2101932293256,28sleep40-21swapper/407:06:434
2101862293274,12sleep60-21swapper/607:06:366
2103732286266,13sleep30-21swapper/307:09:163
2084942286266,13sleep70-21swapper/707:05:107
210909994330,11cyclictest271460-21kworker/u16:0+events_unbound09:15:184
210909993937,2cyclictest292118-21kworker/u16:0+flush-8:010:15:264
210909993733,4cyclictest222748-21kworker/u16:4+flush-8:008:30:284
210909993530,5cyclictest227761-21kworker/u16:0+events_unbound07:55:304
210909993430,3cyclictest833-21snmpd09:05:034
210911993331,2cyclictest833-21snmpd11:29:316
210911993330,2cyclictest356814-21cat12:15:146
210911993330,2cyclictest278699-21cat09:30:156
210910993330,2cyclictest833-21snmpd07:58:035
210910993330,2cyclictest833-21snmpd07:53:545
210910993329,3cyclictest833-21snmpd10:30:595
210908993330,2cyclictest833-21snmpd10:00:103
21090799330,31cyclictest0-21swapper/207:28:442
21090799330,30cyclictest0-21swapper/210:50:092
21090799330,30cyclictest0-21swapper/210:50:092
21090699330,30cyclictest0-21swapper/109:24:451
210905993329,3cyclictest674173-21rs:main0
21090599330,32cyclictest0-21swapper/011:40:170
210912993231,1cyclictest833-21snmpd11:42:287
210912993230,2cyclictest833-21snmpd10:40:567
210912993230,2cyclictest302110-21cat10:20:157
210911993230,2cyclictest316648-21cat10:50:156
210911993230,2cyclictest316648-21cat10:50:156
210910993230,2cyclictest833-21snmpd09:33:465
210910993230,1cyclictest833-21snmpd12:35:475
210910993230,1cyclictest833-21snmpd09:40:585
21091099320,31cyclictest0-21swapper/509:49:555
21091099320,31cyclictest0-21swapper/509:03:305
21091099320,31cyclictest0-21swapper/509:03:305
21091099320,31cyclictest0-21swapper/508:39:115
210909993230,2cyclictest833-21snmpd12:02:564
210909993230,1cyclictest833-21snmpd10:35:564
210909993230,1cyclictest833-21snmpd09:14:574
210909993229,2cyclictest833-21snmpd08:05:584
210909993229,2cyclictest251193-21kworker/u16:2+flush-8:008:40:254
21090999320,31cyclictest0-21swapper/407:30:054
210908993230,2cyclictest833-21snmpd09:40:553
210908993230,2cyclictest833-21snmpd08:38:473
210908993230,1cyclictest833-21snmpd11:48:563
210908993229,3cyclictest833-21snmpd10:14:443
210908993228,3cyclictest833-21snmpd11:54:143
21090899320,31cyclictest0-21swapper/308:17:103
210907993230,2cyclictest833-21snmpd12:24:332
210907993230,2cyclictest833-21snmpd09:19:532
210907993229,2cyclictest833-21snmpd09:05:232
210907993229,2cyclictest326017-21cat11:10:152
21090799320,31cyclictest0-21swapper/208:59:532
21090799320,31cyclictest0-21swapper/208:59:532
21090799320,30cyclictest0-21swapper/211:35:192
210906993230,2cyclictest833-21snmpd12:39:391
210905993230,2cyclictest833-21snmpd11:13:390
210905993230,2cyclictest304686-21cat10:25:160
21090599320,32cyclictest0-21swapper/010:36:410
21090599320,1cyclictest0-21swapper/009:48:340
210912993130,1cyclictest833-21snmpd10:39:157
210912993130,1cyclictest833-21snmpd10:07:087
210912993129,2cyclictest833-21snmpd11:08:007
210912993129,2cyclictest833-21snmpd08:11:457
210912993128,3cyclictest833-21snmpd08:17:107
210911993130,1cyclictest833-21snmpd11:13:456
210911993129,2cyclictest833-21snmpd12:25:426
210911993129,2cyclictest833-21snmpd09:10:186
210911993129,1cyclictest833-21snmpd07:26:416
21091199310,30cyclictest0-21swapper/612:03:026
21091199310,30cyclictest0-21swapper/611:43:406
21091199310,30cyclictest0-21swapper/610:55:306
21091199310,30cyclictest0-21swapper/609:05:126
21091199310,30cyclictest0-21swapper/608:44:026
21091199310,30cyclictest0-21swapper/607:45:306
21091199310,1cyclictest0-21swapper/612:31:036
21091199310,1cyclictest0-21swapper/611:16:196
21091199310,1cyclictest0-21swapper/609:23:546
21091199310,1cyclictest0-21swapper/607:19:536
210910993130,1cyclictest833-21snmpd11:58:415
210910993130,1cyclictest833-21snmpd09:56:075
210910993130,1cyclictest833-21snmpd08:10:255
210910993129,2cyclictest833-21snmpd10:53:425
210910993129,2cyclictest833-21snmpd10:53:425
210910993129,1cyclictest833-21snmpd09:38:465
210910993129,1cyclictest833-21snmpd09:11:335
210910993128,2cyclictest833-21snmpd10:20:145
210910993128,2cyclictest315678-21kworker/u16:2+flush-8:011:05:265
21091099310,30cyclictest0-21swapper/511:47:075
21091099310,30cyclictest0-21swapper/511:36:105
21091099310,30cyclictest0-21swapper/509:52:225
21091099310,30cyclictest0-21swapper/509:23:425
21091099310,30cyclictest0-21swapper/507:49:365
21091099310,30cyclictest0-21swapper/507:28:145
210909993130,1cyclictest833-21snmpd12:37:184
21090999310,31cyclictest0-21swapper/408:51:024
21090999310,1cyclictest0-21swapper/411:25:254
21090999310,1cyclictest0-21swapper/409:03:214
21090999310,1cyclictest0-21swapper/409:03:204
21090999310,1cyclictest0-21swapper/407:19:384
210908993130,1cyclictest833-21snmpd12:12:503
210908993130,1cyclictest833-21snmpd09:02:483
210908993130,1cyclictest833-21snmpd09:02:483
210908993130,1cyclictest183316-21kworker/u16:0+flush-8:007:25:173
210908993129,2cyclictest833-21snmpd11:17:373
210908993129,2cyclictest833-21snmpd09:46:013
210908993129,1cyclictest833-21snmpd08:04:013
210908993129,1cyclictest833-21snmpd07:53:423
210908993128,2cyclictest833-21snmpd12:21:003
210908993128,2cyclictest833-21snmpd07:46:303
210908993128,2cyclictest833-21snmpd07:16:383
21090899310,31cyclictest0-21swapper/310:07:533
21090899310,31cyclictest0-21swapper/309:11:453
21090899310,1cyclictest0-21swapper/312:19:543
21090899310,1cyclictest0-21swapper/311:07:593
21090899310,1cyclictest0-21swapper/308:11:463
210907993130,1cyclictest833-21snmpd09:50:342
210907993130,1cyclictest833-21snmpd08:44:022
210907993130,1cyclictest833-21snmpd08:12:492
210907993130,1cyclictest833-21snmpd07:33:422
210907993129,2cyclictest833-21snmpd07:18:012
210907993129,2cyclictest323686-21cat11:05:152
210907993129,2cyclictest308584-21cat10:35:002
21090799310,30cyclictest0-21swapper/212:35:322
21090799310,30cyclictest0-21swapper/212:02:052
21090799310,30cyclictest0-21swapper/211:27:032
21090799310,30cyclictest0-21swapper/210:21:552
21090799310,30cyclictest0-21swapper/210:17:082
21090799310,30cyclictest0-21swapper/210:03:232
21090799310,30cyclictest0-21swapper/209:26:182
21090799310,30cyclictest0-21swapper/209:10:362
21090799310,30cyclictest0-21swapper/208:47:052
21090799310,30cyclictest0-21swapper/208:39:472
21090799310,30cyclictest0-21swapper/208:00:572
21090799310,30cyclictest0-21swapper/207:40:092
21090799310,30cyclictest0-21swapper/207:24:562
210906993130,1cyclictest833-21snmpd12:18:271
210906993130,1cyclictest833-21snmpd11:35:551
210906993130,1cyclictest833-21snmpd11:19:371
210906993130,1cyclictest833-21snmpd10:16:081
210906993130,1cyclictest833-21snmpd09:54:401
210906993130,1cyclictest833-21snmpd08:55:141
210906993130,1cyclictest833-21snmpd08:55:131
210906993129,2cyclictest833-21snmpd07:48:091
210906993129,2cyclictest292730-21cat10:00:161
210906993129,1cyclictest833-21snmpd12:13:461
210906993129,1cyclictest833-21snmpd12:01:431
21090699310,30cyclictest0-21swapper/108:31:411
21090699310,1cyclictest0-21swapper/108:27:131
21090699310,1cyclictest0-21swapper/107:56:011
21090699310,1cyclictest0-21swapper/107:18:111
210905993130,1cyclictest833-21snmpd10:09:290
210905993130,1cyclictest833-21snmpd08:50:350
210905993130,1cyclictest833-21snmpd08:19:310
210905993129,2cyclictest833-21snmpd10:41:080
210905993129,2cyclictest833-21snmpd09:22:470
21090599310,31cyclictest0-21swapper/008:06:100
21090599310,30cyclictest0-21swapper/012:35:000
21090599310,30cyclictest0-21swapper/011:01:420
21090599310,30cyclictest0-21swapper/009:53:070
21090599310,30cyclictest0-21swapper/008:26:550
21090599310,1cyclictest0-21swapper/012:18:300
21090599310,1cyclictest0-21swapper/010:48:540
21090599310,1cyclictest0-21swapper/009:05:420
210912993029,1cyclictest833-21snmpd12:19:547
210912993029,1cyclictest833-21snmpd09:31:437
210912993027,3cyclictest833-21snmpd07:40:457
210911993029,1cyclictest833-21snmpd11:00:186
210911993029,1cyclictest833-21snmpd09:42:166
210911993029,1cyclictest833-21snmpd08:02:406
210911993028,2cyclictest833-21snmpd10:37:546
210911993028,2cyclictest833-21snmpd09:57:526
210911993028,1cyclictest833-21snmpd11:45:046
21091199300,30cyclictest0-21swapper/612:11:476
21091199300,30cyclictest0-21swapper/611:20:256
210910993029,1cyclictest833-21snmpd10:46:425
210910993029,1cyclictest833-21snmpd10:08:475
21091099300,30cyclictest0-21swapper/512:28:305
21091099300,30cyclictest0-21swapper/511:30:525
21091099300,30cyclictest0-21swapper/507:42:155
21091099300,29cyclictest0-21swapper/507:12:295
210909993029,1cyclictest833-21snmpd12:25:064
210909993029,1cyclictest833-21snmpd11:43:314
210909993029,1cyclictest833-21snmpd11:07:184
210909993029,1cyclictest833-21snmpd10:10:164
210909993028,2cyclictest833-21snmpd12:18:304
210909993028,2cyclictest833-21snmpd10:32:324
21090999300,30cyclictest0-21swapper/412:32:214
21090999300,30cyclictest0-21swapper/412:22:534
21090999300,30cyclictest0-21swapper/412:05:084
21090999300,30cyclictest0-21swapper/411:37:314
21090999300,30cyclictest0-21swapper/411:34:314
21090999300,30cyclictest0-21swapper/410:53:304
21090999300,30cyclictest0-21swapper/410:53:294
21090999300,30cyclictest0-21swapper/409:57:014
21090999300,30cyclictest0-21swapper/408:25:404
21090999300,30cyclictest0-21swapper/407:42:334
21090999300,0cyclictest0-21swapper/411:00:304
210908993029,1cyclictest833-21snmpd12:30:543
210908993029,1cyclictest833-21snmpd11:26:103
210908993029,1cyclictest833-21snmpd10:41:173
210908993029,1cyclictest833-21snmpd09:59:283
210908993029,1cyclictest833-21snmpd09:07:213
210908993028,1cyclictest833-21snmpd08:52:053
210908993028,1cyclictest833-21snmpd08:28:073
21090899300,30cyclictest0-21swapper/309:21:473
21090899300,30cyclictest0-21swapper/307:40:453
210907993028,2cyclictest833-21snmpd07:57:032
21090799300,30cyclictest0-21swapper/211:21:462
21090799300,30cyclictest0-21swapper/211:00:182
21090799300,30cyclictest0-21swapper/210:07:022
21090799300,30cyclictest0-21swapper/209:42:492
21090799300,29cyclictest0-21swapper/211:19:522
210906993029,1cyclictest833-21snmpd12:07:351
210906993029,1cyclictest833-21snmpd11:43:011
210906993029,1cyclictest833-21snmpd10:26:581
210906993029,1cyclictest833-21snmpd08:20:191
210906993029,1cyclictest833-21snmpd08:02:571
210906993028,2cyclictest240495-21cat08:10:121
21090699300,30cyclictest0-21swapper/109:45:251
21090699300,30cyclictest0-21swapper/108:07:491
210905993029,1cyclictest833-21snmpd11:19:100
210905993029,1cyclictest833-21snmpd09:26:240
210905993029,1cyclictest833-21snmpd07:49:450
210905993029,1cyclictest833-21snmpd07:31:210
210905993028,2cyclictest833-21snmpd08:59:440
210905993028,2cyclictest833-21snmpd08:59:430
210905993028,2cyclictest833-21snmpd07:36:270
21090599300,30cyclictest0-21swapper/012:39:360
21090599300,30cyclictest0-21swapper/012:21:210
21090599300,30cyclictest0-21swapper/009:37:070
21090599300,30cyclictest0-21swapper/008:34:200
210912992928,1cyclictest833-21snmpd12:22:057
210912992928,1cyclictest833-21snmpd11:48:537
210912992928,1cyclictest833-21snmpd09:11:457
210912992927,2cyclictest833-21snmpd10:10:147
210912992927,2cyclictest833-21snmpd08:54:387
210912992926,2cyclictest362034-21cat12:25:157
210911992928,1cyclictest833-21snmpd11:55:226
210911992928,1cyclictest833-21snmpd09:46:196
210911992928,1cyclictest833-21snmpd09:27:556
210911992927,2cyclictest833-21snmpd08:37:146
210911992926,2cyclictest833-21snmpd08:47:146
21091199290,29cyclictest0-21swapper/609:50:286
210910992928,1cyclictest833-21snmpd12:09:025
210910992928,1cyclictest833-21snmpd08:17:525
210910992927,1cyclictest833-21snmpd12:15:485
210910992927,1cyclictest833-21snmpd08:34:085
21091099290,29cyclictest0-21swapper/512:20:255
21091099290,29cyclictest0-21swapper/512:14:325
210909992928,1cyclictest833-21snmpd09:36:044
210909992928,1cyclictest833-21snmpd08:04:314
210909992928,1cyclictest833-21snmpd07:35:564
210909992928,1cyclictest0-21swapper/407:13:014
210909992927,2cyclictest833-21snmpd08:10:404
21090999290,29cyclictest0-21swapper/411:12:454
21090999290,29cyclictest0-21swapper/410:29:594
21090999290,28cyclictest0-21swapper/410:55:244
210908992928,1cyclictest833-21snmpd09:34:163
210908992928,1cyclictest0-21swapper/308:41:173
210908992927,1cyclictest833-21snmpd11:39:043
210908992927,1cyclictest833-21snmpd07:11:173
21090899290,28cyclictest0-21swapper/310:17:413
210907992928,1cyclictest833-21snmpd08:24:282
210907992927,1cyclictest833-21snmpd11:34:582
210907992925,2cyclictest0-21swapper/209:35:162
21090799290,29cyclictest0-21swapper/210:37:172
21090799290,29cyclictest0-21swapper/208:09:582
21090799290,29cyclictest0-21swapper/207:51:392
21090799290,28cyclictest0-21swapper/209:02:242
21090799290,28cyclictest0-21swapper/209:02:242
210906992928,1cyclictest833-21snmpd11:31:551
210906992928,1cyclictest833-21snmpd11:12:151
210906992928,1cyclictest833-21snmpd08:51:231
210906992927,2cyclictest833-21snmpd11:21:001
210906992927,2cyclictest833-21snmpd10:05:141
21090699290,28cyclictest0-21swapper/110:55:571
210905992928,1cyclictest833-21snmpd11:52:050
210905992928,1cyclictest833-21snmpd11:47:100
210905992928,1cyclictest833-21snmpd11:33:270
210905992928,1cyclictest833-21snmpd08:42:020
210905992927,2cyclictest264646-21cat09:00:170
210905992927,2cyclictest264646-21cat09:00:170
210905992927,1cyclictest0-21swapper/007:59:410
21090599290,29cyclictest0-21swapper/008:22:100
21090599290,28cyclictest0-21swapper/009:15:390
210912992827,1cyclictest833-21snmpd09:21:487
210912992827,1cyclictest210903-21cyclictest09:02:487
210912992827,1cyclictest210903-21cyclictest09:02:477
210912992826,2cyclictest833-21snmpd11:29:497
210912992826,2cyclictest833-21snmpd09:42:527
210912992826,2cyclictest347348-21cat11:55:187
210912992825,3cyclictest833-21snmpd10:30:147
210912992825,3cyclictest288058-21cat09:50:147
210911992827,1cyclictest0-21swapper/609:19:546
210911992826,2cyclictest833-21snmpd11:37:076
210911992826,2cyclictest0-21swapper/610:34:136
210911992826,1cyclictest833-21snmpd10:18:596
21091199280,28cyclictest0-21swapper/607:37:006
21091199280,27cyclictest0-21swapper/610:20:026
210910992827,1cyclictest833-21snmpd07:24:265
210910992826,1cyclictest0-21swapper/508:24:195
210909992827,1cyclictest833-21snmpd10:05:084
210909992827,1cyclictest833-21snmpd08:49:144
210909992827,1cyclictest833-21snmpd07:51:034
210909992827,1cyclictest227761-21kworker/u16:0+flush-8:007:45:264
210909992825,2cyclictest833-21snmpd08:35:024
21090999280,28cyclictest0-21swapper/410:24:234
210908992827,1cyclictest833-21snmpd10:27:293
210908992827,1cyclictest833-21snmpd08:47:413
210908992826,1cyclictest833-21snmpd12:06:083
210908992825,2cyclictest833-21snmpd08:06:283
21090799280,28cyclictest0-21swapper/211:55:352
210906992827,1cyclictest833-21snmpd10:33:231
210906992827,1cyclictest833-21snmpd09:31:101
210906992827,1cyclictest833-21snmpd08:46:471
210906992826,2cyclictest833-21snmpd12:27:271
21090699280,27cyclictest0-21swapper/107:24:201
210905992827,1cyclictest833-21snmpd11:38:520
210905992827,1cyclictest833-21snmpd10:24:320
210905992827,1cyclictest833-21snmpd09:13:360
210905992827,1cyclictest833-21snmpd07:19:080
21090599280,28cyclictest0-21swapper/011:05:050
21090599280,27cyclictest0-21swapper/010:10:110
210912992726,1cyclictest833-21snmpd11:30:137
210912992726,1cyclictest833-21snmpd10:02:567
210912992725,2cyclictest833-21snmpd10:17:417
210912992725,2cyclictest271677-21cat09:15:187
210912992725,1cyclictest0-21swapper/709:59:287
210912992725,1cyclictest0-21swapper/708:04:017
210911992726,1cyclictest833-21snmpd10:03:236
210911992726,1cyclictest833-21snmpd08:10:046
210911992726,1cyclictest0-21swapper/612:06:106
210911992725,2cyclictest359553-21cat12:20:186
210911992725,1cyclictest0-21swapper/608:55:156
210911992725,1cyclictest0-21swapper/608:55:146
210911992725,1cyclictest0-21swapper/608:50:056
210910992726,1cyclictest833-21snmpd11:53:525
210910992726,1cyclictest833-21snmpd10:42:425
210910992726,1cyclictest0-21swapper/510:04:355
210910992725,1cyclictest0-21swapper/510:15:355
210910992724,2cyclictest833-21snmpd09:29:555
21091099270,27cyclictest0-21swapper/510:12:265
210909992725,1cyclictest833-21snmpd11:51:114
210908992725,1cyclictest320763-21apt-get11:00:153
210908992725,1cyclictest0-21swapper/309:53:163
210908992724,2cyclictest833-21snmpd12:27:093
210907992726,1cyclictest833-21snmpd10:41:242
210907992725,2cyclictest833-21snmpd12:06:022
21090799270,27cyclictest0-21swapper/211:51:142
210906992726,1cyclictest833-21snmpd10:13:311
210906992726,1cyclictest0-21swapper/109:13:151
210906992725,1cyclictest0-21swapper/111:45:011
210906992725,1cyclictest0-21swapper/109:36:251
210906992725,1cyclictest0-21swapper/109:29:251
210906992725,1cyclictest0-21swapper/107:53:241
21090699270,27cyclictest0-21swapper/109:03:061
21090699270,27cyclictest0-21swapper/109:03:061
210905992726,1cyclictest0-21swapper/010:00:310
210905992726,1cyclictest0-21swapper/008:10:400
210905992725,2cyclictest833-21snmpd08:45:590
210905992725,2cyclictest318986-21cat10:55:140
210912992625,1cyclictest833-21snmpd11:03:247
210912992625,1cyclictest0-21swapper/712:30:547
210912992625,1cyclictest0-21swapper/711:17:377
210912992625,1cyclictest0-21swapper/709:46:017
210912992625,1cyclictest0-21swapper/709:07:217
210912992625,1cyclictest0-21swapper/707:53:427
210912992624,2cyclictest833-21snmpd08:40:147
210912992624,2cyclictest833-21snmpd07:48:487
210912992624,1cyclictest0-21swapper/708:28:077
210912992624,1cyclictest0-21swapper/707:16:057
210911992625,1cyclictest833-21snmpd10:06:466
210911992625,1cyclictest0-21swapper/608:18:046
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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