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2026-02-19 - 16:10
[ 290.152] (II) VESA: driver for VESA chipsets: vesa

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Default latency plot of shadow in rack #3, slot #3

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 -
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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 rack3slot3s.osadl.org (updated Thu Feb 19, 2026 12:43:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1135886212957,68sleep30-21swapper/307:08:133
113573728668,11sleep20-21swapper/207:06:192
113594728353,10sleep10-21swapper/107:08:591
113597127756,14sleep00-21swapper/007:09:180
1136278996259,1cyclictest0-21swapper/311:03:443
1136278995855,1cyclictest0-21swapper/311:17:543
1136278995110,10cyclictest0-21swapper/310:27:403
113627899510,29cyclictest0-21swapper/310:05:033
1136278994947,1cyclictest0-21swapper/311:32:143
1136278994946,1cyclictest0-21swapper/310:46:093
113627899480,43cyclictest0-21swapper/307:33:383
113627899480,17cyclictest0-21swapper/311:11:253
14143882450,1sleep00-21swapper/010:36:440
1136278994441,1cyclictest0-21swapper/307:37:443
113627899440,19cyclictest63750irq/124-enp1s0-TxRx-009:40:333
113627899435,20cyclictest0-21swapper/310:41:533
113627899430,30cyclictest63750irq/124-enp1s0-TxRx-009:17:563
113627899430,17cyclictest0-21swapper/312:05:193
113627899430,17cyclictest0-21swapper/310:01:113
1136278994239,2cyclictest0-21swapper/308:35:203
1136278994221,1cyclictest0-21swapper/309:14:053
113627899413,20cyclictest0-21swapper/309:56:003
113627899410,17cyclictest0-21swapper/311:56:273
113627899401,24cyclictest0-21swapper/312:24:193
113627899390,37cyclictest0-21swapper/311:45:133
113627899390,37cyclictest0-21swapper/307:15:123
113627899386,19cyclictest63750irq/124-enp1s0-TxRx-011:07:003
113627899380,26cyclictest63750irq/124-enp1s0-TxRx-011:43:463
1136278993735,1cyclictest0-21swapper/309:38:503
1136278993734,2cyclictest0-21swapper/310:20:433
113627899370,1cyclictest0-21swapper/312:19:263
113627899370,19cyclictest0-21swapper/311:50:443
113627899370,19cyclictest0-21swapper/311:50:433
1136278993633,2cyclictest0-21swapper/309:45:113
113627899360,18cyclictest63750irq/124-enp1s0-TxRx-009:51:363
113627899341,23cyclictest0-21swapper/312:00:533
113627899341,15cyclictest0-21swapper/309:32:473
113627899321,23cyclictest63750irq/124-enp1s0-TxRx-010:19:273
113627899320,14cyclictest0-21swapper/307:10:103
1136278993121,2cyclictest0-21swapper/309:29:263
113627899310,23cyclictest0-21swapper/312:30:423
1136278993028,1cyclictest0-21swapper/307:20:253
113627899300,12cyclictest0-21swapper/308:15:203
113627899291,12cyclictest0-21swapper/310:35:123
113627899291,11cyclictest0-21swapper/311:36:113
113627899290,27cyclictest0-21swapper/312:28:153
13473992280,1sleep20-21swapper/209:59:062
13135232280,1sleep10-21swapper/109:39:531
13109772280,1sleep00-21swapper/009:36:350
1136278992825,2cyclictest0-21swapper/308:00:193
1136278992825,2cyclictest0-21swapper/307:45:193
113627899270,18cyclictest0-21swapper/309:24:223
113627899270,14cyclictest0-21swapper/309:01:153
113627899260,13cyclictest0-21swapper/308:05:113
113627899255,1cyclictest0-21swapper/307:40:153
1136278992523,1cyclictest0-21swapper/312:35:033
1136278992517,2cyclictest0-21swapper/311:20:373
13885142240,3sleep10-21swapper/110:21:331
113627899240,19cyclictest63750irq/124-enp1s0-TxRx-010:30:093
13560402230,1sleep10-21swapper/110:04:101
1136278992320,1cyclictest0-21swapper/308:50:193
113627899230,9cyclictest0-21swapper/308:30:133
113627899230,14cyclictest0-21swapper/308:25:023
14823292220,1sleep10-21swapper/111:15:301
13385022220,1sleep20-21swapper/209:53:452
1136278992219,1cyclictest0-21swapper/312:12:253
113627899221,17cyclictest0-21swapper/310:10:593
113627899221,15cyclictest63750irq/124-enp1s0-TxRx-011:25:053
113627899221,13cyclictest0-21swapper/310:58:403
14749852210,1sleep20-21swapper/211:12:022
113627899211,9cyclictest63750irq/124-enp1s0-TxRx-008:45:193
1136278992111,2cyclictest0-21swapper/307:25:243
13032822200,3sleep10-21swapper/109:33:071
113627899203,6cyclictest0-21swapper/309:08:383
12952842190,1sleep20-21swapper/209:28:512
113627899191,15cyclictest0-21swapper/310:51:173
113627899190,17cyclictest0-21swapper/308:55:153
14572022181,3sleep20-21swapper/211:01:162
16061272171,3sleep00-21swapper/012:29:410
15364982171,3sleep10-21swapper/111:48:211
15114442170,1sleep00-21swapper/011:34:460
14998282171,3sleep21261473-21diskmemload11:25:492
14685682171,2sleep10-21swapper/111:09:531
11897672171,3sleep00-21swapper/008:00:000
1136278991711,3cyclictest11887842sleep307:55:183
16223782161,4sleep11261473-21diskmemload12:38:281
15705662161,3sleep21261473-21diskmemload12:08:022
14997222160,1sleep10-21swapper/111:25:401
14509792160,3sleep10-21swapper/110:59:261
14399672160,1sleep10-21swapper/110:51:241
14238242160,2sleep10-21swapper/110:42:511
13802172160,4sleep21261473-21diskmemload10:17:022
113627899161,3cyclictest0-21swapper/308:40:133
1136278991613,2cyclictest0-21swapper/308:25:203
113627899160,14cyclictest0-21swapper/308:14:583
15695762151,10sleep11569587-21ssh12:06:451
15632322152,4sleep10-21swapper/112:04:411
15192622151,9sleep11519276-21ssh11:38:431
15107932151,7sleep20-21swapper/211:33:512
13733982150,2sleep00-21swapper/010:14:230
13697192151,9sleep21369783-21ntpq10:10:212
13648202150,1sleep20-21swapper/210:09:242
13633572151,3sleep01363371-21ssh10:07:300
13566492151,4sleep01356664-21ssh10:04:570
12848252151,4sleep21284840-21ssh09:21:302
12058472152,3sleep01205913-21kthreadcore08:15:150
15716602141,4sleep01571671-21ssh12:09:290
15355532140,1sleep00-21swapper/011:47:080
14471262141,8sleep21447172-21sshd10:55:182
13909122141,2sleep00-21swapper/010:24:420
13198102140,2sleep10-21swapper/109:41:451
12307092145,5sleep11230776-21systemd-run08:40:011
12255862141,8sleep21225635-21munin-run08:35:012
113627899141,6cyclictest0-21swapper/307:50:103
16160172133,2sleep20-21swapper/212:35:162
16111402131,8sleep01611234-21cat12:30:250
15856102131,6sleep11261473-21diskmemload12:15:271
15788522131,7sleep21261473-21diskmemload12:12:392
15622022131,6sleep00-21swapper/012:03:190
15214822131,5sleep11522669-21kthreadcore11:40:161
15085282131,4sleep11508538-21ssh11:30:531
14690772131,8sleep11469128-21grep11:10:131
14397302130,1sleep20-21swapper/210:51:062
14331252131,8sleep11433140-21ssh10:48:441
14327272131,7sleep21261473-21diskmemload10:48:132
14069892131,8sleep01407002-21sh10:33:160
13980292131,5sleep10-21swapper/110:27:431
12935082131,3sleep01293510-21ssh09:26:330
12760942131,6sleep20-21swapper/209:16:212
16127162120,1sleep20-21swapper/212:32:032
15851342121,7sleep01585197-21/usr/sbin/munin12:15:220
15810412121,7sleep21581057-21apt-get12:15:122
15520982126,2sleep11552109-21ssh11:56:231
15447042121,3sleep11544714-21ssh11:52:541
15447042121,3sleep11544714-21ssh11:52:541
15026342121,4sleep00-21swapper/011:29:280
14916572121,6sleep21261473-21diskmemload11:21:242
14675832121,7sleep01467597-21sh11:08:360
14644832121,5sleep21464539-21ntpq11:05:212
14220222121,5sleep00-21swapper/010:40:300
14151342121,5sleep21261473-21diskmemload10:37:432
14148142121,6sleep11261473-21diskmemload10:37:171
13573982121,7sleep11357541-21hddtemp_smartct10:05:141
13366392121,3sleep10-21swapper/109:51:191
13266682121,7sleep11326729-21collect209:45:181
13211702121,3sleep01321184-21ssh09:43:330
13194572121,6sleep21261473-21diskmemload09:41:182
13023382121,4sleep20-21swapper/209:31:522
12515362121,5sleep01251555-21apt-get09:00:110
12144432121,5sleep11214500-21ntpq08:20:211
11971872120,1sleep10-21swapper/108:05:181
11946552120,1sleep00-21swapper/008:01:410
16112372111,5sleep11611484-21users12:30:261
16046632111,4sleep21261473-21diskmemload12:27:482
15961932111,6sleep11596204-21ssh12:22:481
15521102110,6sleep21261473-21diskmemload11:56:242
15422652111,6sleep21542375-21ssh11:50:222
15422652111,6sleep21542375-21ssh11:50:222
15358452110,6sleep21261473-21diskmemload11:47:302
15262182111,4sleep21261473-21diskmemload11:41:092
14937742111,3sleep00-21swapper/011:24:110
14842182111,6sleep01484230-21ssh11:17:570
14571202111,6sleep01457135-21ssh11:01:100
14480762111,3sleep00-21swapper/010:55:400
14392892111,4sleep00-21swapper/010:50:310
14254932111,6sleep21425727-21latency_hist10:45:002
13990272113,1sleep00-21swapper/010:29:030
13969652111,4sleep21261473-21diskmemload10:26:212
13825072111,6sleep01382715-21latency_hist10:20:020
13553412111,4sleep21261473-21diskmemload10:03:152
13301682111,4sleep21261473-21diskmemload09:49:082
12861922110,1sleep00-21swapper/009:23:160
12755742114,3sleep1321rcuc/109:15:401
12618462112,4sleep11261865-21apt-get09:10:101
11594922111,5sleep01159571-21irqstats07:30:140
11588042110,4sleep00-21swapper/007:29:500
11475022111,5sleep21147583-21ntpq07:15:172
11437312111,5sleep01143987-21df07:15:110
16026042101,2sleep10-21swapper/112:25:261
15957012101,4sleep21261473-21diskmemload12:22:092
15767462101,6sleep00-21swapper/012:10:210
15764552101,4sleep11576515-21ntpq12:10:181
15600752101,3sleep21261473-21diskmemload12:00:332
15541702101,2sleep00-21swapper/011:59:060
15458562101,2sleep00-21swapper/011:54:260
15458562101,2sleep00-21swapper/011:54:250
15183512101,2sleep20-21swapper/211:37:322
15181712101,2sleep00-21swapper/011:37:180
14919602101,2sleep10-21swapper/111:21:471
14837292101,3sleep21261473-21diskmemload11:17:202
14736432101,5sleep01473791-21ssh11:10:280
14566752100,4sleep11261473-21diskmemload11:00:341
14258622101,3sleep00-21swapper/010:45:100
14079732101,3sleep10-21swapper/110:34:331
14075752101,2sleep20-21swapper/210:34:022
13899012101,4sleep21261473-21diskmemload10:23:232
13783152101,4sleep11378373-21ntpq10:15:211
13720382101,3sleep11261473-21diskmemload10:12:361
13463052100,4sleep11261473-21diskmemload09:57:411
13457712100,1sleep00-21swapper/009:57:000
13265612101,4sleep00-21swapper/009:45:170
13022062101,6sleep01302220-21ssh09:31:420
12918922101,4sleep11291940-21ntpq09:25:191
12819462101,5sleep11283124-21memory09:20:171
12779182100,3sleep00-21swapper/009:18:430
12678332101,2sleep20-21swapper/209:12:082
12669892101,2sleep00-21swapper/009:11:020
12412752100,2sleep20-21swapper/208:50:112
12361462101,4sleep01236399-21df08:45:130
12358982100,1sleep10-21swapper/108:45:011
12315182101,5sleep21233150-21cut08:40:182
12312872101,5sleep01231426-21smartctl08:40:160
12002632101,4sleep11200282-21apt-get08:10:111
11792582100,1sleep10-21swapper/107:46:181
11690162100,5sleep01168957-31find07:37:240
11577892101,5sleep11157818-21ntpq07:25:181
1619506291,2sleep00-21swapper/012:35:220
1590185291,5sleep01591073-21kthreadcore12:20:150
1521394291,4sleep01521481-21irqstats11:40:140
1331854291,5sleep01333444-21kthreadcore09:50:140
1310540291,2sleep20-21swapper/209:36:012
1260323291,4sleep21260454-21ld09:05:182
1246404291,4sleep11246663-21df_inode08:55:111
1245621290,1sleep00-21swapper/008:50:260
1241710291,4sleep11242153-21cut08:50:141
1224578293,3sleep134-21ksoftirqd/108:30:191
1218879291,4sleep01219416-21grep08:25:170
1214740291,4sleep21214995-21sed08:20:262
1214389291,4sleep01214436-21ntpq08:20:200
1183687291,3sleep11183738-21ntpq07:50:191
1179813291,2sleep00-21swapper/007:50:100
1169698290,5sleep00-21swapper/007:40:120
1169038291,3sleep11168957-31find07:37:401
1136573291,3sleep01136041-21apt-get07:10:020
1260561281,3sleep11260629-21grep09:05:211
1251814283,2sleep2421rcuc/209:00:132
1230996280,2sleep10-21swapper/108:40:131
1229683281,2sleep00-21swapper/008:35:190
1216140281,3sleep21217066-21kthreadcore08:25:152
1205413281,3sleep11205623-21expr08:15:121
1204260281,3sleep01204384-21/usr/sbin/munin08:10:220
1195684281,4sleep00-21swapper/008:05:170
1194236281,4sleep10-21swapper/108:00:251
1188728280,4sleep21188782-21ntpq07:55:172
1174707280,2sleep21174726-21apt-get07:45:122
1173565280,4sleep10-21swapper/107:40:211
1160723281,3sleep21162557-21grep07:30:162
1159097281,4sleep11159110-21wc07:30:111
1154015281,3sleep21154208-21cstates07:25:112
1153562280,1sleep20-21swapper/207:22:512
1152762281,3sleep01152815-21ntpq07:20:200
1143988281,3sleep11144058-21/usr/sbin/munin07:15:121
1257644271,3sleep01259377-21cut09:05:160
1246383270,2sleep00-21swapper/008:55:100
1220440270,1sleep10-21swapper/108:29:181
1205133270,3sleep20-21swapper/208:15:012
1200285271,2sleep20-21swapper/208:10:122
1194824270,1sleep20-21swapper/208:03:502
1173400270,2sleep20-21swapper/207:40:182
1169013270,2sleep20-21swapper/207:37:212
1153721270,1sleep10-21swapper/107:24:501
1141321270,1sleep10-21swapper/107:12:231
1140838271,3sleep21140896-21switchtime07:10:242
1256061260,1sleep10-21swapper/109:01:181
1250979260,4sleep20-21swapper/208:56:332
1230541260,1sleep20-21swapper/208:37:532
1224454260,1sleep00-21swapper/008:30:180
1188598261,2sleep10-21swapper/107:55:161
1239862250,1sleep20-21swapper/208:45:192
1195470250,1sleep20-21swapper/208:05:152
1178864250,1sleep00-21swapper/007:45:250
1180030240,1sleep20-21swapper/207:50:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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