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2026-06-13 - 00:28

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #8

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.
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
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rackbslot8s (updated Fri Jun 12, 2026 12:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3147282142127,10sleep30-21swapper/307:05:493
3149762130101,9sleep00-21swapper/007:09:230
31526099127127,0cyclictest0-21swapper/210:17:092
3148482123108,10sleep20-21swapper/207:07:322
3148952121107,9sleep40-21swapper/407:08:134
3148092118104,9sleep10-21swapper/107:06:591
3147402118104,9sleep60-21swapper/607:06:006
3147882117103,9sleep70-21swapper/707:06:417
31527699116115,1cyclictest421427-21kworker/6:110:17:096
312910210591,9sleep50-21swapper/507:05:105
3152609910499,2cyclictest31-21ksoftirqd/209:21:492
31526899103100,3cyclictest553-21snmpd09:25:324
31526099103101,2cyclictest31-21ksoftirqd/210:54:502
31526099103100,1cyclictest31-21ksoftirqd/212:04:032
31525299103100,3cyclictest553-21snmpd12:34:500
315280991020,100cyclictest0-21swapper/707:44:487
3152689910298,3cyclictest553-21snmpd10:31:454
315268991020,102cyclictest0-21swapper/409:50:364
315280991010,99cyclictest0-21swapper/708:12:447
315280991010,100cyclictest0-21swapper/707:20:037
315276991010,100cyclictest0-21swapper/607:34:436
3152719910199,2cyclictest553-21snmpd10:44:565
315271991010,100cyclictest0-21swapper/507:40:175
3152689910199,2cyclictest553-21snmpd12:32:124
3152689910199,2cyclictest553-21snmpd07:17:184
3152689910198,3cyclictest553-21snmpd08:55:194
3152689910197,4cyclictest553-21snmpd10:24:074
315268991010,1cyclictest0-21swapper/411:52:044
315268991010,101cyclictest0-21swapper/410:35:144
315268991010,100cyclictest0-21swapper/410:13:284
3152639910199,2cyclictest553-21snmpd09:47:423
3152639910199,2cyclictest553-21snmpd07:17:273
3152609910199,2cyclictest553-21snmpd11:07:572
3152609910199,2cyclictest553-21snmpd08:40:382
3152609910199,1cyclictest31-21ksoftirqd/212:28:232
3152609910199,1cyclictest31-21ksoftirqd/212:28:232
3152609910198,0cyclictest31-21ksoftirqd/212:16:522
31526099101100,1cyclictest0-21swapper/211:00:152
315260991010,100cyclictest0-21swapper/211:12:512
315260991010,100cyclictest0-21swapper/210:47:052
315260991010,100cyclictest0-21swapper/210:05:152
315260991010,100cyclictest0-21swapper/207:43:402
3152579910199,2cyclictest553-21snmpd10:25:041
31525799101100,1cyclictest553-21snmpd09:54:091
315257991010,100cyclictest0-21swapper/111:20:181
3152529910199,2cyclictest553-21snmpd11:14:330
3152529910199,2cyclictest553-21snmpd10:46:100
3152529910199,2cyclictest553-21snmpd10:14:250
3152529910199,2cyclictest0-21swapper/012:35:240
3152529910199,2cyclictest0-21swapper/010:59:530
315252991010,99cyclictest0-21swapper/008:52:390
315252991010,101cyclictest0-21swapper/007:27:540
315252991010,100cyclictest0-21swapper/011:29:570
315252991010,100cyclictest0-21swapper/011:03:380
315252991010,0cyclictest0-21swapper/012:03:020
315280991000,99cyclictest0-21swapper/708:08:387
315280991000,100cyclictest0-21swapper/712:31:127
315280991000,100cyclictest0-21swapper/709:31:327
315280991000,100cyclictest0-21swapper/708:16:117
315280991000,100cyclictest0-21swapper/708:16:117
3152769910099,1cyclictest553-21snmpd07:49:346
3152769910099,1cyclictest421427-21kworker/6:110:09:386
3152769910099,0cyclictest553-21snmpd10:46:566
315276991000,99cyclictest0-21swapper/611:57:406
315276991000,99cyclictest0-21swapper/608:46:546
315276991000,99cyclictest0-21swapper/608:40:546
315276991000,100cyclictest0-21swapper/611:27:096
315276991000,100cyclictest0-21swapper/607:12:446
3152719910099,1cyclictest553-21snmpd11:30:365
3152719910099,1cyclictest553-21snmpd11:25:305
3152719910099,1cyclictest553-21snmpd11:04:435
3152719910099,1cyclictest553-21snmpd10:09:265
3152719910099,1cyclictest553-21snmpd10:02:095
3152719910099,1cyclictest553-21snmpd09:50:305
3152719910099,1cyclictest553-21snmpd08:58:105
3152719910099,1cyclictest553-21snmpd07:56:015
3152719910098,2cyclictest553-21snmpd09:30:175
315271991000,1cyclictest0-21swapper/512:02:205
315271991000,100cyclictest0-21swapper/509:04:195
3152689910099,1cyclictest553-21snmpd10:17:224
3152689910098,2cyclictest553-21snmpd10:52:114
315268991000,99cyclictest0-21swapper/407:49:554
315268991000,100cyclictest0-21swapper/412:12:054
315268991000,100cyclictest0-21swapper/409:11:274
3152639910099,1cyclictest553-21snmpd12:06:593
3152639910099,1cyclictest553-21snmpd10:42:413
3152639910099,1cyclictest553-21snmpd10:01:203
3152639910099,1cyclictest553-21snmpd09:32:553
3152639910099,1cyclictest553-21snmpd09:09:493
3152639910099,1cyclictest553-21snmpd08:50:273
3152609910099,1cyclictest553-21snmpd12:24:022
3152609910099,1cyclictest378255-21cat09:10:142
3152609910099,1cyclictest349873-21fw_forwarded_lo08:15:132
3152609910099,1cyclictest349873-21fw_forwarded_lo08:15:122
3152609910098,2cyclictest553-21snmpd07:52:492
3152609910098,1cyclictest553-21snmpd10:11:512
3152609910098,0cyclictest31-21ksoftirqd/210:25:402
3152609910097,3cyclictest0-21swapper/209:15:252
3152609910097,0cyclictest31-21ksoftirqd/209:39:152
315260991000,99cyclictest0-21swapper/211:55:052
315260991000,99cyclictest0-21swapper/210:43:512
315260991000,100cyclictest0-21swapper/212:34:182
315260991000,100cyclictest0-21swapper/211:47:392
315260991000,100cyclictest0-21swapper/210:33:252
315260991000,100cyclictest0-21swapper/208:55:142
3152579910099,1cyclictest553-21snmpd10:51:491
3152579910099,1cyclictest553-21snmpd10:34:251
3152579910099,1cyclictest553-21snmpd09:06:221
3152579910099,1cyclictest444925-21cat10:10:131
3152579910099,1cyclictest344713-21cat08:05:161
3152579910098,2cyclictest553-21snmpd11:07:391
31525799100100,0cyclictest0-21swapper/109:28:461
315257991000,99cyclictest0-21swapper/110:22:571
315257991000,99cyclictest0-21swapper/108:33:181
315257991000,100cyclictest0-21swapper/111:55:311
3152529910099,1cyclictest553-21snmpd08:46:060
315252991000,99cyclictest0-21swapper/008:56:550
315252991000,100cyclictest0-21swapper/011:53:160
315252991000,100cyclictest0-21swapper/011:46:160
315252991000,100cyclictest0-21swapper/009:38:110
315280999999,0cyclictest0-21swapper/712:30:007
315280999999,0cyclictest0-21swapper/712:30:007
31528099990,99cyclictest0-21swapper/711:55:227
31528099990,99cyclictest0-21swapper/711:54:287
31528099990,99cyclictest0-21swapper/710:04:067
31528099990,99cyclictest0-21swapper/709:25:267
31528099990,99cyclictest0-21swapper/709:21:057
31528099990,99cyclictest0-21swapper/708:49:457
31528099990,99cyclictest0-21swapper/707:55:227
31528099990,98cyclictest0-21swapper/712:07:567
31528099990,98cyclictest0-21swapper/710:29:047
31528099990,0cyclictest0-21swapper/711:35:047
315276999999,0cyclictest553-21snmpd12:17:236
315276999999,0cyclictest553-21snmpd11:36:346
315276999999,0cyclictest553-21snmpd08:25:296
315276999998,1cyclictest553-21snmpd12:36:036
315276999998,1cyclictest553-21snmpd09:58:216
315276999998,1cyclictest553-21snmpd09:42:076
315276999998,1cyclictest553-21snmpd09:33:416
315276999998,1cyclictest553-21snmpd08:33:366
31527699990,99cyclictest0-21swapper/612:14:026
31527699990,99cyclictest0-21swapper/611:23:306
31527699990,99cyclictest0-21swapper/609:14:256
31527699990,99cyclictest0-21swapper/607:51:376
31527699990,0cyclictest0-21swapper/611:52:496
31527699990,0cyclictest0-21swapper/611:32:456
31527699990,0cyclictest0-21swapper/610:51:446
31527699990,0cyclictest0-21swapper/608:04:106
315271999999,0cyclictest553-21snmpd09:48:335
315271999998,1cyclictest553-21snmpd10:45:265
315271999998,1cyclictest553-21snmpd08:26:005
315271999998,1cyclictest553-21snmpd08:13:085
315271999997,2cyclictest553-21snmpd11:58:575
315271999997,2cyclictest553-21snmpd09:43:175
315271999997,2cyclictest322042-21cat07:20:155
31527199990,99cyclictest0-21swapper/512:14:355
31527199990,99cyclictest0-21swapper/511:41:405
31527199990,99cyclictest0-21swapper/511:10:145
31527199990,99cyclictest0-21swapper/509:17:375
31527199990,99cyclictest0-21swapper/509:05:255
31527199990,99cyclictest0-21swapper/507:38:035
31527199990,98cyclictest0-21swapper/509:13:015
31527199990,0cyclictest0-21swapper/510:25:495
315268999999,0cyclictest553-21snmpd12:36:154
315268999999,0cyclictest553-21snmpd11:38:554
315268999999,0cyclictest0-21swapper/411:47:524
315268999997,2cyclictest553-21snmpd11:02:204
31526899990,99cyclictest0-21swapper/411:33:374
31526899990,99cyclictest0-21swapper/410:58:444
31526899990,99cyclictest0-21swapper/408:46:234
31526899990,99cyclictest0-21swapper/408:28:244
31526899990,99cyclictest0-21swapper/407:26:004
31526899990,0cyclictest0-21swapper/412:23:314
31526899990,0cyclictest0-21swapper/408:40:064
31526899990,0cyclictest0-21swapper/407:50:104
31526899990,0cyclictest0-21swapper/407:31:194
315263999999,0cyclictest553-21snmpd10:08:183
315263999999,0cyclictest553-21snmpd08:57:253
315263999998,1cyclictest553-21snmpd12:32:483
315263999998,1cyclictest553-21snmpd11:09:033
315263999998,1cyclictest553-21snmpd09:20:443
315263999998,1cyclictest553-21snmpd07:11:393
315263999998,1cyclictest1880257-21ntpd10:56:223
315263999998,0cyclictest553-21snmpd11:04:473
315263999997,2cyclictest553-21snmpd11:45:163
315263999996,3cyclictest553-21snmpd10:33:553
315260999998,1cyclictest553-21snmpd11:32:072
315260999998,1cyclictest553-21snmpd09:55:422
315260999998,1cyclictest553-21snmpd07:35:102
315260999998,1cyclictest553-21snmpd07:12:002
315260999998,1cyclictest0-21swapper/210:59:022
315260999997,1cyclictest605-21lldpd09:44:452
315260999997,1cyclictest141rcu_preempt09:25:372
31526099990,99cyclictest0-21swapper/212:10:572
31526099990,99cyclictest0-21swapper/211:50:432
31526099990,99cyclictest0-21swapper/211:28:332
31526099990,99cyclictest0-21swapper/210:37:492
31526099990,99cyclictest0-21swapper/210:22:572
31526099990,99cyclictest0-21swapper/209:30:132
31526099990,99cyclictest0-21swapper/208:36:272
31526099990,99cyclictest0-21swapper/208:06:172
31526099990,99cyclictest0-21swapper/207:31:552
31526099990,99cyclictest0-21swapper/207:15:152
31526099990,98cyclictest376914-21diskmemload11:15:432
31526099990,98cyclictest0-21swapper/211:20:162
31526099990,98cyclictest0-21swapper/208:00:172
31526099990,98cyclictest0-21swapper/207:55:132
31526099990,0cyclictest0-21swapper/212:05:262
31526099990,0cyclictest0-21swapper/209:53:332
315257999999,0cyclictest553-21snmpd11:41:551
315257999999,0cyclictest553-21snmpd09:57:471
315257999999,0cyclictest553-21snmpd07:36:311
315257999999,0cyclictest0-21swapper/111:19:201
315257999998,1cyclictest553-21snmpd12:28:031
315257999998,1cyclictest553-21snmpd12:28:031
315257999998,1cyclictest553-21snmpd10:47:441
315257999998,1cyclictest553-21snmpd10:00:121
315257999998,1cyclictest553-21snmpd07:42:311
315257999997,2cyclictest0-21swapper/109:35:591
31525799990,99cyclictest0-21swapper/108:58:341
31525799990,99cyclictest0-21swapper/107:23:421
31525799990,98cyclictest0-21swapper/112:38:141
31525799990,0cyclictest0-21swapper/110:40:201
31525799990,0cyclictest0-21swapper/108:12:351
315252999999,0cyclictest553-21snmpd12:12:520
315252999999,0cyclictest553-21snmpd08:23:290
315252999998,1cyclictest553-21snmpd09:45:020
315252999998,1cyclictest553-21snmpd08:39:060
315252999998,1cyclictest489853-21cat10:50:140
315252999998,1cyclictest1880257-21ntpd09:56:230
31525299990,99cyclictest0-21swapper/010:29:160
31525299990,99cyclictest0-21swapper/010:21:240
31525299990,98cyclictest0-21swapper/012:25:470
31525299990,98cyclictest0-21swapper/012:25:470
31525299990,0cyclictest0-21swapper/007:20:450
31528099980,98cyclictest0-21swapper/711:08:297
31528099980,98cyclictest0-21swapper/709:09:197
31528099980,98cyclictest0-21swapper/707:19:357
31528099980,98cyclictest0-21swapper/707:13:457
315276999898,0cyclictest553-21snmpd12:33:516
315276999898,0cyclictest553-21snmpd08:37:096
315276999898,0cyclictest553-21snmpd07:44:196
315276999897,1cyclictest577857-21kworker/6:112:24:036
315276999897,1cyclictest553-21snmpd09:46:206
315276999897,1cyclictest495409-21cat10:55:156
315276999897,1cyclictest433828-21cat10:00:146
31527699980,98cyclictest0-21swapper/609:05:076
315271999898,0cyclictest553-21snmpd11:47:345
315271999897,1cyclictest553-21snmpd11:18:005
315271999897,1cyclictest553-21snmpd10:52:415
315271999897,1cyclictest553-21snmpd09:57:005
315271999897,1cyclictest553-21snmpd09:35:375
315271999897,1cyclictest553-21snmpd09:26:145
315271999897,1cyclictest553-21snmpd08:44:125
315271999897,1cyclictest553-21snmpd08:03:055
315271999896,2cyclictest553-21snmpd12:06:415
315271999896,2cyclictest553-21snmpd11:39:285
31527199980,98cyclictest0-21swapper/508:47:335
31527199980,98cyclictest0-21swapper/507:50:315
315268999898,0cyclictest553-21snmpd09:43:234
315268999897,1cyclictest553-21snmpd09:38:084
315268999897,1cyclictest553-21snmpd07:56:274
315268999895,3cyclictest553-21snmpd12:15:474
31526899980,98cyclictest0-21swapper/409:17:044
31526899980,97cyclictest0-21swapper/410:06:214
315263999897,1cyclictest553-21snmpd11:18:303
315263999897,1cyclictest553-21snmpd08:17:113
315263999897,1cyclictest553-21snmpd08:17:113
315263999897,1cyclictest553-21snmpd08:11:503
315263999897,1cyclictest553-21snmpd07:44:133
315263999896,2cyclictest553-21snmpd08:08:233
315260999898,0cyclictest553-21snmpd09:05:092
315260999898,0cyclictest553-21snmpd08:30:242
315260999898,0cyclictest0-21swapper/211:36:032
315260999898,0cyclictest0-21swapper/208:10:152
315260999898,0cyclictest0-21swapper/207:25:192
31526099980,98cyclictest0-21swapper/212:37:022
31526099980,98cyclictest0-21swapper/209:45:322
315257999898,0cyclictest553-21snmpd07:34:161
315257999897,1cyclictest378252-21cat09:10:141
315257999897,1cyclictest350058-21cat08:15:151
315257999897,1cyclictest350058-21cat08:15:151
315257999897,0cyclictest553-21snmpd09:47:091
31525799980,98cyclictest0-21swapper/112:00:201
31525799980,98cyclictest0-21swapper/111:38:041
31525799980,98cyclictest0-21swapper/110:56:561
315252999898,0cyclictest553-21snmpd11:22:570
315252999897,1cyclictest553-21snmpd11:58:550
315252999897,1cyclictest553-21snmpd07:54:070
315252999897,1cyclictest0-21swapper/010:44:230
315252999896,2cyclictest553-21snmpd09:03:210
31525299980,98cyclictest0-21swapper/009:42:410
31525299980,98cyclictest0-21swapper/009:31:380
31528099970,97cyclictest0-21swapper/712:15:267
31528099970,97cyclictest0-21swapper/711:44:347
31528099970,97cyclictest0-21swapper/708:50:387
315276999796,1cyclictest460376-21kworker/6:210:39:186
31527699970,97cyclictest0-21swapper/610:34:586
315271999796,1cyclictest553-21snmpd12:22:345
315271999796,1cyclictest553-21snmpd10:31:435
315271999796,1cyclictest553-21snmpd08:33:035
315271999796,1cyclictest553-21snmpd08:17:145
315271999796,1cyclictest553-21snmpd08:17:145
315271999795,1cyclictest553-21snmpd11:24:245
31527199970,97cyclictest0-21swapper/508:06:445
31527199970,97cyclictest0-21swapper/507:34:315
315268999797,0cyclictest553-21snmpd07:24:574
315268999795,2cyclictest553-21snmpd12:03:354
31526899970,97cyclictest0-21swapper/409:22:294
315263999797,0cyclictest553-21snmpd08:21:383
315263999795,1cyclictest553-21snmpd07:20:033
315260999796,1cyclictest553-21snmpd08:48:002
31526099970,97cyclictest0-21swapper/207:45:152
31526099970,96cyclictest0-21swapper/211:41:252
315257999796,1cyclictest553-21snmpd12:13:561
315257999796,1cyclictest553-21snmpd11:52:161
315257999796,1cyclictest553-21snmpd11:14:181
315257999796,1cyclictest472741-21cat10:35:141
315257999796,1cyclictest404523-21ssh09:34:471
31525799970,97cyclictest0-21swapper/111:04:081
31525799970,97cyclictest0-21swapper/109:19:381
31525799970,97cyclictest0-21swapper/109:01:041
315252999797,0cyclictest553-21snmpd09:27:170
315252999797,0cyclictest553-21snmpd08:27:330
315252999797,0cyclictest553-21snmpd07:58:530
315252999796,1cyclictest553-21snmpd09:16:370
315252999796,1cyclictest1880257-21ntpd10:06:230
315252999795,2cyclictest553-21snmpd12:09:410
315252999795,1cyclictest0-21swapper/010:39:290
315252999794,3cyclictest553-21snmpd08:40:330
315280999695,1cyclictest0-21swapper/709:13:347
315276999696,0cyclictest553-21snmpd11:40:346
315276999696,0cyclictest553-21snmpd11:19:426
315276999695,1cyclictest456060-21cat10:20:136
315276999694,2cyclictest553-21snmpd09:21:086
315276999694,2cyclictest0-21swapper/608:18:326
315276999694,2cyclictest0-21swapper/608:18:326
31527699960,96cyclictest0-21swapper/611:08:126
31527699960,96cyclictest0-21swapper/610:26:436
31527699960,96cyclictest0-21swapper/608:51:116
315271999696,0cyclictest553-21snmpd12:26:025
315271999696,0cyclictest553-21snmpd12:26:025
315271999696,0cyclictest553-21snmpd11:05:085
315271999695,1cyclictest553-21snmpd12:38:125
315271999695,1cyclictest553-21snmpd12:33:305
315271999695,1cyclictest553-21snmpd08:24:415
315271999695,1cyclictest0-21swapper/512:15:025
315268999696,0cyclictest553-21snmpd09:56:034
315268999696,0cyclictest553-21snmpd08:22:294
315268999695,1cyclictest553-21snmpd11:11:574
315268999695,1cyclictest553-21snmpd08:00:354
31526899960,96cyclictest0-21swapper/411:40:464
31526899960,96cyclictest0-21swapper/410:46:594
31526899960,96cyclictest0-21swapper/409:02:224
315263999696,0cyclictest553-21snmpd11:35:043
315263999696,0cyclictest553-21snmpd10:36:133
315263999696,0cyclictest553-21snmpd09:42:263
315263999696,0cyclictest553-21snmpd09:14:463
315263999695,1cyclictest553-21snmpd09:25:263
315263999694,2cyclictest553-21snmpd11:54:273
315263999694,2cyclictest553-21snmpd07:55:213
315263999694,2cyclictest1880257-21ntpd10:51:233
315263999693,3cyclictest553-21snmpd11:10:243
315260999696,0cyclictest3741982sleep209:02:272
31526099960,96cyclictest376914-21diskmemload10:00:052
315257999696,0cyclictest553-21snmpd07:29:381
315257999696,0cyclictest318223-21cat07:15:011
31525799960,96cyclictest0-21swapper/112:22:501
31525799960,96cyclictest0-21swapper/111:25:271
31525799960,96cyclictest0-21swapper/110:09:301
31525799960,96cyclictest0-21swapper/108:24:531
315252999696,0cyclictest0-21swapper/011:42:120
315252999695,1cyclictest553-21snmpd07:48:340
315252999695,1cyclictest0-21swapper/012:21:320
315252999694,2cyclictest553-21snmpd09:53:290
315252999693,2cyclictest553-21snmpd11:31:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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