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2026-07-02 - 18:00

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, slot #4

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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  Intel
Click here to display the system's profile data or here to proceed to next system.
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: ondemand
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rack5slot4s.osadl.org (updated Thu Jul 02, 2026 12:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
48624899184167,14cyclictest0-21swapper/010:40:010
48625799172168,2cyclictest0-21swapper/210:40:012
486253996559,4cyclictest646556-21kworker/u8:2+events_unbound09:45:291
486253996154,5cyclictest721930-21kworker/u8:4+events_unbound12:05:271
486253995953,4cyclictest679833-21kworker/u8:2+events_unbound12:25:251
486253995750,5cyclictest721930-21kworker/u8:4+events_unbound11:50:221
4928592550,1sleep1492863-21grep07:15:041
486253995551,3cyclictest627633-21kworker/u8:3+events_unbound09:40:311
486253995450,3cyclictest651510-21kworker/u8:0+flush-8:009:50:321
486253995449,4cyclictest721930-21kworker/u8:4+flush-8:012:10:291
486253995448,5cyclictest601694-21kworker/u8:1+events_unbound09:25:241
486253995348,4cyclictest721930-21kworker/u8:4+flush-8:011:35:271
486253995348,4cyclictest601694-21kworker/u8:1+events_unbound09:55:251
486253995348,3cyclictest679833-21kworker/u8:2+events_unbound11:30:241
486253995245,6cyclictest3840457-21kworker/u8:0+flush-8:008:25:261
486253995244,5cyclictest601694-21kworker/u8:1+flush-8:009:00:291
486248995242,7cyclictest742380-21latency_hist11:25:010
486248995242,7cyclictest742380-21latency_hist11:25:010
486248995240,9cyclictest747847-21diskstats11:30:120
486253995145,4cyclictest601694-21kworker/u8:1+events_unbound09:20:131
486253995040,8cyclictest576598-21ntpq08:35:231
486253994944,4cyclictest679833-21kworker/u8:2+events_unbound11:15:271
486253994944,4cyclictest679833-21kworker/u8:2+events_unbound11:15:271
486253994844,3cyclictest727108-21kworker/u8:0+flush-8:011:20:261
486253994844,3cyclictest727108-21kworker/u8:0+flush-8:011:20:251
486253994844,3cyclictest627633-21kworker/u8:3+flush-8:010:05:281
486253994843,4cyclictest679833-21kworker/u8:2+events_unbound12:30:131
486253994843,4cyclictest679833-21kworker/u8:2+events_unbound11:45:261
486253994842,5cyclictest601694-21kworker/u8:1+events_unbound09:15:261
486253994743,3cyclictest517855-21kworker/u8:3+flush-8:008:10:281
486248994737,8cyclictest490200-21ntpq07:10:230
486253994641,4cyclictest679833-21kworker/u8:2+flush-8:010:30:161
486253994641,4cyclictest3840457-21kworker/u8:0+flush-8:007:10:251
486253994641,3cyclictest627633-21kworker/u8:3+events_unbound10:10:271
486253994640,4cyclictest601694-21kworker/u8:1+events_unbound09:05:241
486253994539,5cyclictest651510-21kworker/u8:0+events_unbound11:00:141
486248994539,4cyclictest601694-21kworker/u8:1+events_unbound09:55:220
486253994440,3cyclictest540453-21kworker/u8:2+flush-8:009:10:251
486253994439,3cyclictest651510-21kworker/u8:0+events_unbound10:45:231
486253994435,7cyclictest526845-21ntpq07:45:231
486248994434,8cyclictest731446-21ntpq11:10:220
486253994339,3cyclictest721930-21kworker/u8:4+flush-8:011:40:321
486253994339,3cyclictest540453-21kworker/u8:2+flush-8:008:50:301
486253994339,3cyclictest3846125-21kworker/u8:2+flush-8:007:30:261
486253994338,3cyclictest517855-21kworker/u8:3+events_unbound08:10:001
486253994336,4cyclictest679833-21kworker/u8:2+events_unbound11:05:241
486253994332,8cyclictest1704890-21systemd-journal12:18:431
486253994238,3cyclictest517855-21kworker/u8:3+flush-8:008:15:111
486253994238,3cyclictest3840457-21kworker/u8:0+flush-8:008:40:261
486253994236,5cyclictest679833-21kworker/u8:2+events_unbound10:55:151
486253994236,4cyclictest679833-21kworker/u8:2+events_unbound10:25:131
486248994235,5cyclictest3846125-21kworker/u8:2+flush-8:007:20:230
486253994137,3cyclictest721930-21kworker/u8:4+events_unbound11:25:121
486253994137,3cyclictest3846125-21kworker/u8:2+flush-8:007:25:281
486253994136,4cyclictest517855-21kworker/u8:3+events_unbound08:20:261
486253994135,5cyclictest727108-21kworker/u8:0+events_unbound11:10:111
486253994036,3cyclictest721930-21kworker/u8:4+flush-8:011:55:251
486257993933,4cyclictest646556-21kworker/u8:2+flush-8:009:50:132
486253993935,3cyclictest3840457-21kworker/u8:0+flush-8:008:30:161
486253993935,3cyclictest3840457-21kworker/u8:0+flush-8:007:40:201
486253993934,3cyclictest679833-21kworker/u8:2+events_unbound10:35:231
486253993931,6cyclictest542644-21latency_hist08:05:011
486253993931,6cyclictest542644-21latency_hist08:05:011
486248993934,4cyclictest627633-21kworker/u8:3+events_unbound09:45:180
486253993831,5cyclictest802080-21latency_hist12:25:011
486248993832,5cyclictest679833-21kworker/u8:2+events_unbound11:45:270
486253993732,3cyclictest582343-21kworker/u8:3+events_unbound08:59:421
486253993632,3cyclictest707452-21kworker/u8:1+events_unbound10:50:441
486253993632,3cyclictest627633-21kworker/u8:3+events_unbound10:15:231
486248993625,9cyclictest658674-21kthreadcore10:00:180
486257993530,3cyclictest679833-21kworker/u8:2+events_unbound11:10:432
486253993531,3cyclictest627633-21kworker/u8:3+events_unbound09:35:281
486253993531,3cyclictest486102-21kworker/u8:1+events_unbound07:55:111
486253993531,3cyclictest486102-21kworker/u8:1+events_unbound07:55:111
486257993429,4cyclictest679833-21kworker/u8:2+events_unbound12:30:292
486253993429,3cyclictest697770-21kworker/u8:3+events_unbound10:40:211
486253993428,4cyclictest601694-21kworker/u8:1+events_unbound10:00:171
486248993427,5cyclictest512487-21grep07:30:310
486257993328,4cyclictest1704890-21systemd-journal10:35:002
486257993327,4cyclictest540453-21kworker/u8:2+flush-8:008:45:282
486257993228,3cyclictest679833-21kworker/u8:2+flush-8:010:20:282
486253993227,4cyclictest679833-21kworker/u8:2+events_unbound10:20:461
48624899325,25cyclictest491152-21kworker/0:0+events10:05:210
486248993227,4cyclictest3840457-21kworker/u8:0+flush-8:008:30:310
486248993226,4cyclictest637131-21unixbench_singl09:35:310
486248993226,4cyclictest582343-21kworker/u8:3+flush-8:008:45:150
486248993225,5cyclictest679833-21kworker/u8:2+events_unbound10:50:120
486248993224,6cyclictest3840457-21kworker/u8:0+flush-8:007:40:240
486248993224,6cyclictest1704890-21systemd-journal07:55:000
486257993126,4cyclictest517810-21idleruntime-cro07:40:002
486253993127,3cyclictest601694-21kworker/u8:1+events_unbound09:30:131
486253993127,3cyclictest3846125-21kworker/u8:2+flush-8:007:20:301
486253993126,4cyclictest679833-21kworker/u8:2+events_unbound12:35:171
486248993127,3cyclictest791919-21cron12:15:010
486248993127,3cyclictest679833-21kworker/u8:2+flush-8:010:30:300
486248993127,2cyclictest642526-21systemd-run09:45:000
486248993126,3cyclictest885-21mta-sts-daemon12:25:140
486248993124,5cyclictest651510-21kworker/u8:0+flush-8:010:55:310
486257993024,4cyclictest562449-21apt-get08:25:032
486253993026,3cyclictest540453-21kworker/u8:2+events_unbound08:49:431
486248993026,3cyclictest601694-21kworker/u8:1+flush-8:009:00:320
486248993026,3cyclictest540453-21kworker/u8:2+flush-8:008:05:150
486248993026,2cyclictest802113-21latency_hist12:25:000
486248993025,3cyclictest558041-21fschecks_count08:20:140
486248993020,7cyclictest516847-21ntpq07:35:210
486248993018,9cyclictest540453-21kworker/u8:2+flush-8:008:55:110
486257992924,3cyclictest573083-21runrttasks08:35:142
486253992925,3cyclictest679833-21kworker/u8:2+events_unbound12:00:231
486253992925,3cyclictest3840457-21kworker/u8:0+events_unbound07:37:521
486248992925,3cyclictest8550irq/124-ahci[0000:00:12.0]08:50:120
486248992923,4cyclictest703098-21fschecks_time10:45:140
486248992921,2cyclictest421rcuog/209:05:260
486248992920,6cyclictest0-21swapper/008:10:100
486248992916,4cyclictest1-21systemd11:15:510
486248992916,4cyclictest1-21systemd11:15:500
486257992823,4cyclictest637527-21sendmail09:40:002
486248992822,4cyclictest3846125-21kworker/u8:2+flush-8:007:15:260
486248992821,5cyclictest677739-21diskstats10:20:130
486257992723,2cyclictest602925-21aten2_r5power_p09:05:132
486257992722,4cyclictest601694-21kworker/u8:1+flush-8:009:30:252
486257992722,4cyclictest562914-21kworker/u8:1+flush-8:008:40:272
48625799271,10cyclictest523242-21/usr/sbin/munin07:45:122
486253992723,3cyclictest3840457-21kworker/u8:0+events_unbound07:50:151
486248992724,2cyclictest617477-21sendmail09:20:010
486248992723,2cyclictest0-21swapper/008:00:000
486248992723,2cyclictest0-21swapper/007:59:590
486248992721,4cyclictest679833-21kworker/u8:2+flush-8:011:25:260
486248992720,6cyclictest3840457-21kworker/u8:0+flush-8:008:25:130
486257992622,2cyclictest772472-21aten2_r5power_v11:55:112
486257992621,3cyclictest627154-21unixbench_multi09:25:292
486257992621,3cyclictest1704890-21systemd-journal07:15:002
486257992619,5cyclictest806445-21threads12:25:282
486248992622,3cyclictest786045-21ntp_kernel_err12:05:210
486248992621,4cyclictest721930-21kworker/u8:4+flush-8:011:55:270
486248992621,3cyclictest0-21swapper/012:00:240
486248992620,4cyclictest687394-21latency_hist10:30:000
48625799252,22cyclictest0-21swapper/212:03:282
486257992521,2cyclictest692672-21aten2_r5power_e10:35:102
486257992521,2cyclictest653016-21fschecks_time09:55:132
486257992520,4cyclictest627633-21kworker/u8:3+flush-8:010:15:232
486248992521,3cyclictest0-21swapper/008:15:240
486248992520,4cyclictest721930-21kworker/u8:4+flush-8:011:35:230
486248992520,4cyclictest507475-21unixbench_multi07:25:310
486248992518,1cyclictest0-21swapper/009:10:080
486257992420,3cyclictest707434-21idleruntime-cro10:50:002
486257992419,3cyclictest737949-21fschecks_time11:20:122
486257992419,3cyclictest737949-21fschecks_time11:20:122
486257992419,3cyclictest598170-21fschecks_count09:00:142
486257992418,4cyclictest627633-21kworker/u8:3+flush-8:010:00:302
486248992422,1cyclictest651510-21kworker/u8:0+events_unbound09:50:300
486248992419,4cyclictest721930-21kworker/u8:4+events_unbound11:03:510
486248992419,4cyclictest582257-21unixbench_multi08:40:310
486248992419,4cyclictest523808-21tr07:45:180
486248992419,3cyclictest761842-21unixbench_singl11:40:320
486248992418,4cyclictest562914-21kworker/u8:1+events_unbound08:40:000
486248992415,2cyclictest421rcuog/209:30:190
486248992414,8cyclictest0-21swapper/009:20:140
48625799236,4cyclictest0-21swapper/208:10:402
486257992319,3cyclictest592637-21turbostat.cron08:55:012
486257992318,4cyclictest627633-21kworker/u8:3+flush-8:009:40:262
486257992318,4cyclictest517855-21kworker/u8:3+flush-8:008:00:272
486257992318,4cyclictest517855-21kworker/u8:3+flush-8:008:00:272
486248992319,3cyclictest797138-21munin-run12:20:010
486248992317,4cyclictest721930-21kworker/u8:4+events_unbound11:50:290
48625799222,15cyclictest762512-21apt-get11:45:092
486257992218,3cyclictest0-21swapper/212:15:002
486257992213,7cyclictest1704890-21systemd-journal10:12:422
486248992218,2cyclictest813181-21kthreadcore12:35:160
486248992218,2cyclictest692835-21tr10:35:120
486248992218,2cyclictest0-21swapper/008:00:290
486248992218,2cyclictest0-21swapper/008:00:280
4851742224,11sleep0485202-21ntpq07:05:230
48625799216,3cyclictest4928632grep07:15:042
48625799212,13cyclictest666457-21ntpq10:05:212
486257992117,3cyclictest532295-21unixbench_multi07:50:302
486257992117,2cyclictest498571-21fschecks_count07:20:142
486257992116,4cyclictest651510-21kworker/u8:0+events_unbound10:50:282
486257992116,4cyclictest601694-21kworker/u8:1+flush-8:009:20:312
486257992115,4cyclictest0-21swapper/209:20:002
486248992117,2cyclictest0-21swapper/010:19:590
486248992117,2cyclictest0-21swapper/010:10:110
486248992113,6cyclictest626741-21ntpq09:25:230
4858392214,11sleep10-21swapper/107:07:051
486257992016,2cyclictest552851-21aten2_r5power_e08:15:102
48624899202,3cyclictest0-21swapper/011:05:090
486248992010,8cyclictest0-21swapper/012:30:150
48625799197,4cyclictest0-21swapper/211:50:282
486257991915,3cyclictest727421-21cron11:10:002
486257991915,2cyclictest0-21swapper/208:25:002
486257991915,2cyclictest0-21swapper/207:55:142
486257991915,2cyclictest0-21swapper/207:55:132
486257991911,6cyclictest733437-21seq11:15:182
486257991911,6cyclictest733437-21seq11:15:182
486257991910,7cyclictest747886-21grep11:30:132
4813952194,9sleep20-21swapper/207:05:022
486257991814,3cyclictest0-21swapper/212:05:302
486257991814,2cyclictest0-21swapper/211:00:152
486257991814,2cyclictest0-21swapper/210:55:252
486257991813,3cyclictest646317-21latency09:45:212
48625799181,12cyclictest682196-21apt-get10:25:032
4858362183,9sleep30-21swapper/307:07:043
48625799179,6cyclictest545465-21tr08:05:212
48625799172,11cyclictest756395-21ntpq11:35:232
486257991713,3cyclictest679833-21kworker/u8:2+events_unbound12:35:292
486257991712,3cyclictest0-21swapper/208:30:212
486257991711,4cyclictest609786-21kthreadcore09:10:172
48625799171,11cyclictest791938-21apt-get12:15:042
486257991710,5cyclictest800452-21tr12:20:182
486257991710,5cyclictest745134-21cut11:25:202
48625799166,2cyclictest0-21swapper/207:25:202
486257991613,2cyclictest0-21swapper/208:56:092
486257991612,2cyclictest757785-21cpuspeed_turbos11:40:132
486257991612,2cyclictest508467-21fschecks_count07:30:152
486257991611,3cyclictest0-21swapper/207:40:172
6762532142,8sleep30-21swapper/310:15:223
5629172142,8sleep30-21swapper/308:25:093
5175302142,8sleep30-21swapper/307:36:423
8111462132,7sleep30-21swapper/312:30:263
7931372134,6sleep30-21swapper/312:15:173
7129222133,6sleep30-21swapper/310:55:153
6863092132,7sleep30-21swapper/310:25:213
6377772132,6sleep30-21swapper/309:40:113
6226652132,6sleep30-21swapper/309:25:023
5941482132,6sleep30-21swapper/308:55:203
5876852132,6sleep30-21swapper/308:50:023
5733002132,7sleep30-21swapper/308:35:173
5526962132,6sleep30-21swapper/308:15:033
5327382132,7sleep30-21swapper/307:54:593
5228022132,6sleep30-21swapper/307:45:013
8127362122,6sleep30-21swapper/312:35:173
8017622122,6sleep30-21swapper/312:21:043
7915672122,6sleep30-21swapper/312:10:313
7865692122,6sleep30-21swapper/312:05:313
7773192122,6sleep30-21swapper/312:00:133
7727292122,6sleep30-21swapper/311:55:143
7710092122,6sleep30-21swapper/311:50:223
7625722122,6sleep30-21swapper/311:45:123
7613532122,7sleep30-21swapper/311:40:263
7525262122,6sleep30-21swapper/311:35:083
7366772122,6sleep30-21swapper/311:15:303
7366772122,6sleep30-21swapper/311:15:293
7278022122,6sleep30-21swapper/311:10:133
7174252122,5sleep30-21swapper/311:00:003
7075262122,6sleep30-21swapper/310:50:023
7018542122,6sleep30-21swapper/310:40:303
6574712122,5sleep30-21swapper/310:00:013
6427652122,6sleep30-21swapper/309:45:123
6327752122,6sleep30-21swapper/309:35:083
6281112122,6sleep30-21swapper/309:30:153
6127322122,6sleep30-21swapper/309:15:103
6074982121,7sleep30-21swapper/309:10:013
5480812122,6sleep30-21swapper/308:10:123
5464352122,6sleep30-21swapper/308:05:243
5382382122,6sleep30-21swapper/308:00:143
5382382122,6sleep30-21swapper/308:00:133
5330212122,6sleep30-21swapper/307:55:123
5330212122,6sleep30-21swapper/307:55:123
5230852122,6sleep30-21swapper/307:45:123
5085232122,6sleep30-21swapper/307:30:153
5067872122,6sleep30-21swapper/307:25:223
4972102122,6sleep30-21swapper/307:15:263
4899682122,6sleep30-21swapper/307:10:203
8068222112,6sleep30-21swapper/312:27:223
7479802112,5sleep30-21swapper/311:30:153
7426122112,5sleep30-21swapper/311:25:093
7409852112,5sleep30-21swapper/311:20:203
7409852112,5sleep30-21swapper/311:20:193
7027872112,6sleep30-21swapper/310:45:123
6966212112,5sleep30-21swapper/310:35:293
6913712112,5sleep30-21swapper/310:30:233
6812812112,6sleep30-21swapper/310:20:233
6722192112,6sleep30-21swapper/310:14:303
6626962112,5sleep30-21swapper/310:05:103
6527612112,5sleep30-21swapper/309:55:123
6475052112,5sleep30-21swapper/309:50:013
6179752110,7sleep30-21swapper/309:20:123
6118332112,5sleep30-21swapper/309:10:293
5978512112,5sleep30-21swapper/309:00:093
5829062112,5sleep30-21swapper/308:45:043
5687652112,5sleep30-21swapper/308:30:203
5581502112,6sleep30-21swapper/308:20:163
4987462112,5sleep30-21swapper/307:20:173
7226252102,5sleep30-21swapper/311:05:033
5782402102,5sleep30-21swapper/308:40:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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