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2026-08-26 - 17:26

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 the 792 highest latencies:
System rack5slot4s.osadl.org (updated Wed Aug 26, 2026 12:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38907621910,3sleep30-21swapper/309:12:353
266160996156,4cyclictest246481-21kworker/u8:0+events_unbound07:17:511
266160996156,4cyclictest246481-21kworker/u8:0+events_unbound07:17:511
266160996055,3cyclictest467741-21kworker/u8:2+events_unbound11:45:001
266160996055,3cyclictest418452-21kworker/u8:1+events_unbound10:25:011
266161995940,16cyclictest582316-21cat12:25:012
5230852570,4sleep1281rcuc/111:27:361
266160995650,4cyclictest393598-21kworker/u8:3+events_unbound09:20:011
266160995347,5cyclictest266001-21kworker/u8:3+flush-8:007:32:491
266160995347,4cyclictest432913-21kworker/u8:0+events_unbound10:02:411
266161995243,7cyclictest275-21systemd-journal12:30:012
266160995146,3cyclictest3066123-21kworker/u8:1+events_unbound07:57:401
266160995044,5cyclictest358734-21kworker/u8:0+flush-8:009:07:471
266160995043,5cyclictest467741-21kworker/u8:2+flush-8:011:57:471
266160994944,4cyclictest432913-21kworker/u8:0+events_unbound10:12:401
266160994943,4cyclictest348564-21kworker/u8:4+events_unbound08:47:351
266155994939,7cyclictest383449-21latency_hist09:05:010
266160994842,4cyclictest427949-21kworker/u8:3+events_unbound10:37:401
266155994840,6cyclictest408308-21kworker/u8:2+flush-8:009:50:000
4507052470,3sleep3575-21kworker/3:2-events10:12:423
266161994739,6cyclictest343041-21gpgv08:25:012
266160994742,4cyclictest427949-21kworker/u8:3+events_unbound10:32:471
266160994740,5cyclictest317509-21kworker/u8:3+events_unbound08:40:021
5096552460,5sleep3451irq_work/311:12:423
266160994640,4cyclictest348193-21base6408:30:011
266160994638,6cyclictest432913-21kworker/u8:0+flush-8:010:27:341
266160994541,2cyclictest467741-21kworker/u8:2+events_unbound10:42:371
266160994539,5cyclictest502775-21kworker/u8:3+flush-8:011:47:451
266160994539,5cyclictest502775-21kworker/u8:3+flush-8:011:47:451
266160994538,5cyclictest348564-21kworker/u8:4+events_unbound09:27:541
266160994439,4cyclictest502775-21kworker/u8:3+flush-8:012:22:341
266160994437,6cyclictest358734-21kworker/u8:0+events_unbound09:12:361
266160994437,5cyclictest502775-21kworker/u8:3+flush-8:012:37:391
266160994436,6cyclictest467741-21kworker/u8:2+events_unbound11:22:481
266160994436,6cyclictest271030-21latency_hist07:15:001
266161994335,6cyclictest358378-21gpgv08:40:012
266160994336,5cyclictest562303-21kworker/u8:0+flush-8:012:07:471
266160994334,7cyclictest333489-21/usr/sbin/munin08:17:451
266160994331,9cyclictest358257-21latency_hist08:40:011
26615599430,41cyclictest1-21systemd07:57:290
2614612433,34sleep10-21swapper/107:06:281
2614612433,34sleep10-21swapper/107:06:281
266160994238,3cyclictest467741-21kworker/u8:2+events_unbound10:52:371
266160994237,4cyclictest427949-21kworker/u8:3+events_unbound10:17:491
266160994237,4cyclictest317516-21kworker/u8:4+flush-8:008:22:451
266160994235,5cyclictest482997-21kworker/u8:1+flush-8:011:02:461
266160994235,5cyclictest467741-21kworker/u8:2+events_unbound10:57:461
266155994233,6cyclictest275-21systemd-journal10:07:290
266155994232,8cyclictest398793-21/usr/sbin/munin09:22:440
266155994225,13cyclictest502775-21kworker/u8:3+flush-8:011:47:330
266155994225,13cyclictest502775-21kworker/u8:3+flush-8:011:47:330
5057432410,3sleep3575-21kworker/3:2+events11:07:443
266160994137,3cyclictest432913-21kworker/u8:0+events_unbound11:37:481
266160994135,4cyclictest423181-21latency_hist09:45:011
266160994135,4cyclictest358734-21kworker/u8:0+flush-8:008:55:011
26615599412,35cyclictest256276-21kworker/0:0+events07:27:320
266160994037,2cyclictest348564-21kworker/u8:4+events_unbound09:37:451
266160994036,3cyclictest502775-21kworker/u8:3+flush-8:012:02:491
266160994036,3cyclictest502775-21kworker/u8:3+flush-8:011:07:411
266160994035,3cyclictest3066123-21kworker/u8:1+events_unbound07:27:391
266160994034,4cyclictest358734-21kworker/u8:0+flush-8:009:47:461
266155994035,3cyclictest557114-21cron12:00:010
26615599401,33cyclictest256276-21kworker/0:0+events07:40:060
266161993929,8cyclictest317800-21cp08:00:012
266161993925,12cyclictest477771-21dpkg10:40:012
266160993934,3cyclictest502775-21kworker/u8:3+flush-8:012:17:411
266160993934,3cyclictest502775-21kworker/u8:3+events_unbound11:17:411
266160993934,3cyclictest358734-21kworker/u8:0+events_unbound09:32:501
266160993933,5cyclictest432913-21kworker/u8:0+flush-8:009:57:451
266160993933,5cyclictest432913-21kworker/u8:0+flush-8:009:57:451
266160993932,5cyclictest502775-21kworker/u8:3+flush-8:012:12:501
266155993929,8cyclictest323545-21/usr/sbin/munin08:07:430
26615599390,37cyclictest1-21systemd08:48:300
266161993822,14cyclictest408999-21fschecks_count09:32:372
266160993834,3cyclictest348563-21kworker/u8:2+flush-8:008:32:411
266160993834,3cyclictest308029-21kworker/u8:0+flush-8:007:52:471
266160993833,4cyclictest246481-21kworker/u8:0+events_unbound07:22:401
266160993832,5cyclictest348564-21kworker/u8:4+flush-8:009:02:411
266160993831,5cyclictest502775-21kworker/u8:3+flush-8:011:52:461
26615599382,31cyclictest297964-21kworker/0:2+events11:21:460
26615599382,29cyclictest297964-21kworker/0:2+events08:37:320
266160993732,3cyclictest467741-21kworker/u8:2+events_unbound10:47:481
26615599372,33cyclictest297964-21kworker/0:2+events11:39:200
26615599372,29cyclictest297964-21kworker/0:2+events12:17:320
266161993627,7cyclictest275-21systemd-journal08:15:002
266161993621,13cyclictest398876-21aten2_r5power_e09:22:342
266155993627,7cyclictest358952-21apt-get08:42:330
26615599361,33cyclictest297964-21kworker/0:2+events10:13:080
266161993526,7cyclictest275-21systemd-journal07:55:002
266160993530,3cyclictest288356-21kworker/u8:2+flush-8:007:42:391
266160993530,3cyclictest266001-21kworker/u8:3+flush-8:007:47:481
266155993527,5cyclictest352547-21ntpq08:32:440
266155993525,7cyclictest567030-21latency_hist12:10:010
266161993418,2cyclictest428619-21aten2_r5power_e09:52:352
266161993418,2cyclictest428619-21aten2_r5power_e09:52:352
266160993429,4cyclictest317516-21kworker/u8:4+flush-8:008:02:371
266160993425,5cyclictest502775-21kworker/u8:3+flush-8:012:27:541
26615599349,24cyclictest297964-21kworker/0:2+events11:52:500
26615599343,29cyclictest297964-21kworker/0:2+events09:42:480
266155993429,4cyclictest317516-21kworker/u8:4+flush-8:008:22:360
266155993429,3cyclictest517394-21systemd-run11:20:000
26615599342,26cyclictest433109-21kworker/0:1+events10:02:320
2611352343,8sleep20-21swapper/207:05:012
2611352343,8sleep20-21swapper/207:05:012
266161993325,6cyclictest275-21systemd-journal07:33:292
266160993327,5cyclictest432913-21kworker/u8:0+flush-8:010:07:481
266155993327,4cyclictest497589-21cron11:00:000
26615599332,29cyclictest297964-21kworker/0:2+events12:27:380
26615599331,26cyclictest297964-21kworker/0:2+events10:22:300
266155993311,20cyclictest297964-21kworker/0:2+events09:27:460
266160993228,3cyclictest348564-21kworker/u8:4+events_unbound09:22:381
266160993228,3cyclictest317509-21kworker/u8:3+flush-8:008:12:361
266160993228,3cyclictest317509-21kworker/u8:3+flush-8:008:07:391
266160993227,4cyclictest567267-21kworker/u8:2+flush-8:012:33:251
26615599323,27cyclictest297964-21kworker/0:2+events10:32:440
266155993226,5cyclictest477742-21gpgv10:40:010
26615599322,28cyclictest297964-21kworker/0:2+events11:28:000
26615599322,28cyclictest297964-21kworker/0:2+events09:12:320
26615599322,28cyclictest297964-21kworker/0:2+events08:12:460
266160993127,3cyclictest3066123-21kworker/u8:1+flush-8:007:36:501
266155993126,3cyclictest501742-21needreboot11:02:430
266155993124,5cyclictest275-21systemd-journal08:25:340
26615599311,28cyclictest297964-21kworker/0:2+events10:42:450
26615599311,28cyclictest297964-21kworker/0:2+events09:18:400
26615599311,28cyclictest256276-21kworker/0:0+events07:37:420
26615599310,29cyclictest297964-21kworker/0:2+events11:12:420
266160993026,2cyclictest378562-21systemd-run09:00:011
26615599306,19cyclictest433109-21kworker/0:1+events09:55:000
26615599306,19cyclictest433109-21kworker/0:1+events09:55:000
26615599306,19cyclictest256276-21kworker/0:0+events07:21:400
266155993026,3cyclictest358734-21kworker/u8:0+events_unbound09:10:010
26615599302,27cyclictest297964-21kworker/0:2+events08:02:400
26615599302,26cyclictest297964-21kworker/0:2+events10:47:440
26615599302,26cyclictest297964-21kworker/0:2+events10:17:420
26615599302,26cyclictest256276-21kworker/0:0+events07:17:340
26615599302,26cyclictest256276-21kworker/0:0+events07:17:340
26615599301,27cyclictest297964-21kworker/0:2+events12:05:000
26615599301,27cyclictest297964-21kworker/0:2+events09:37:320
26615599301,27cyclictest297964-21kworker/0:2+events08:52:440
266155993011,17cyclictest297964-21kworker/0:2+events08:17:320
266160992925,3cyclictest408308-21kworker/u8:2+events_unbound09:50:301
266160992925,3cyclictest408308-21kworker/u8:2+events_unbound09:50:301
26615599292,26cyclictest297964-21kworker/0:2+events11:42:400
266155992921,4cyclictest0-21swapper/012:32:310
26615599291,26cyclictest297964-21kworker/0:2+events12:37:340
266155992911,16cyclictest297964-21kworker/0:2+events10:27:320
266155992910,18cyclictest297964-21kworker/0:2+events09:32:340
266155992910,17cyclictest433109-21kworker/0:1+events09:57:380
266155992910,17cyclictest433109-21kworker/0:1+events09:57:380
266155992910,17cyclictest297964-21kworker/0:2+events12:22:320
266155992910,17cyclictest297964-21kworker/0:2+events08:57:020
26615599290,26cyclictest297964-21kworker/0:2+events12:11:240
266161992824,3cyclictest522084-21unixbench_singl11:22:522
266161992823,3cyclictest0-21swapper/212:10:002
266161992819,7cyclictest275-21systemd-journal08:50:002
26616099281,24cyclictest1-21systemd11:35:001
26615599284,19cyclictest297964-21kworker/0:2+events07:46:080
26615599283,20cyclictest297964-21kworker/0:2+events07:50:060
26615599281,25cyclictest256276-21kworker/0:0+events07:12:240
266161992724,2cyclictest453610-21fschecks_count10:17:362
266161992724,2cyclictest287707-21unixbench_multi07:27:512
266161992724,2cyclictest283069-21sh07:25:002
266161992724,2cyclictest277611-21unixbench_multi07:17:522
266161992724,2cyclictest277611-21unixbench_multi07:17:522
266161992721,4cyclictest363478-21cron08:45:002
266155992718,7cyclictest488170-21/usr/sbin/munin10:52:460
266161992622,2cyclictest374249-21cpuspeed_turbos08:57:352
266161992622,2cyclictest0-21swapper/211:00:002
266161992621,3cyclictest531920-21unixbench_singl11:32:512
266161992620,4cyclictest393141-21unixbench_singl09:12:522
26615599262,23cyclictest297964-21kworker/0:2+events11:32:060
266161992521,2cyclictest512919-21aten2_r5power_e11:17:342
266161992521,2cyclictest323682-21aten2_r5power_v08:07:342
266161992519,4cyclictest275-21systemd-journal07:36:302
26615599251,23cyclictest256276-21kworker/0:0+events07:30:280
26615599251,19cyclictest297964-21kworker/0:2+events11:05:140
266161992421,2cyclictest508038-21aten2_r5power_v11:12:352
266161992421,2cyclictest488414-21cpuspeed_turbos10:52:372
266161992420,2cyclictest537796-21cpuspeed_turbos11:42:352
266161992420,2cyclictest443802-21fschecks_time10:07:362
266161992417,5cyclictest275-21systemd-journal12:16:292
266161992416,6cyclictest275-21systemd-journal11:05:002
266161992320,2cyclictest468201-21aten2_r5power_c10:32:352
266161992318,3cyclictest437806-21unixbench_singl09:57:522
266161992318,3cyclictest437806-21unixbench_singl09:57:522
266161992312,9cyclictest550616-21cut11:52:422
266160992319,3cyclictest432913-21kworker/u8:0+events_unbound11:12:321
2615442232,14sleep0261570-21apt-get07:07:320
2615442232,14sleep0261570-21apt-get07:07:320
26616199229,3cyclictest4507112tr10:12:422
266161992213,7cyclictest418670-21apt-get09:42:322
266161992213,7cyclictest387093-21seq09:07:422
266161992117,2cyclictest0-21swapper/212:15:012
266161992117,2cyclictest0-21swapper/210:50:002
266161992116,1cyclictest0-21swapper/208:02:502
266161992016,3cyclictest413775-21aten2_r5power_p09:37:332
266161992015,3cyclictest0-21swapper/207:15:002
26616199201,14cyclictest532594-21apt-get11:37:322
26616199192,12cyclictest303306-21apt-get07:47:332
266161991916,2cyclictest333545-21aten2_r5power_c08:17:342
266161991915,2cyclictest0-21swapper/210:02:442
266161991911,6cyclictest348268-21find08:30:012
5641342180,2sleep3575-21kworker/3:2+events12:07:393
26616199186,4cyclictest0-21swapper/209:17:362
266161991815,2cyclictest0-21swapper/212:00:012
266161991813,4cyclictest0-21swapper/209:47:502
266161991813,2cyclictest0-21swapper/212:35:002
2613582183,9sleep30-21swapper/307:05:103
2613582183,9sleep30-21swapper/307:05:103
26616199178,7cyclictest349871-21cut08:32:402
266161991713,2cyclictest0-21swapper/211:50:002
266161991713,2cyclictest0-21swapper/211:50:002
266161991711,4cyclictest0-21swapper/209:27:472
26616199171,12cyclictest478313-21apt-get10:42:342
266161991710,5cyclictest275-21systemd-journal08:53:292
26616199169,5cyclictest595887-21tr12:37:412
26616199164,4cyclictest0-21swapper/210:22:452
266161991613,2cyclictest0-21swapper/211:07:272
266161991613,2cyclictest0-21swapper/207:41:002
266161991612,2cyclictest0-21swapper/210:27:362
266161991611,3cyclictest0-21swapper/212:02:512
266161991611,3cyclictest0-21swapper/209:02:442
26616199161,11cyclictest522749-21apt-get11:27:332
5166712155,6sleep30-21swapper/311:17:483
4186692152,8sleep30-21swapper/309:42:333
5228652145,6sleep30-21swapper/311:27:353
3120022142,8sleep30-21swapper/307:52:463
5571632132,6sleep30-21swapper/312:00:023
4290512130,3sleep3481ktimers/309:52:403
4290512130,3sleep3481ktimers/309:52:403
3737162132,6sleep30-21swapper/308:55:023
3684052132,7sleep30-21swapper/308:50:003
3323972134,5sleep30-21swapper/308:12:483
3037892132,7sleep30-21swapper/307:47:403
5962542122,6sleep30-21swapper/312:37:463
5879112122,6sleep30-21swapper/312:32:363
5823652122,6sleep30-21swapper/312:25:063
5764602122,6sleep30-21swapper/312:17:523
5672892122,6sleep30-21swapper/312:10:293
5517142122,6sleep30-21swapper/311:52:513
5468322122,6sleep30-21swapper/311:47:543
5468322122,6sleep30-21swapper/311:47:543
5415822122,6sleep30-21swapper/311:42:523
5173442122,5sleep30-21swapper/311:20:013
4968162122,6sleep30-21swapper/310:57:463
4919012123,6sleep30-21swapper/310:52:483
4827932121,6sleep30-21swapper/310:45:023
4780922122,6sleep30-21swapper/310:40:043
4722712122,6sleep30-21swapper/310:32:543
4578362122,5sleep30-21swapper/310:20:013
4434202122,6sleep30-21swapper/310:07:293
4384012122,6sleep30-21swapper/310:01:393
4335222122,6sleep30-21swapper/309:57:343
4335222122,6sleep30-21swapper/309:57:343
4276212122,6sleep30-21swapper/309:47:513
4139422122,6sleep30-21swapper/309:37:363
4083132122,5sleep30-21swapper/309:30:013
3834642122,5sleep30-21swapper/309:05:013
3734532122,6sleep30-21swapper/308:53:293
3582382122,5sleep30-21swapper/308:40:013
3482232122,5sleep30-21swapper/308:30:023
3424522123,6sleep30-21swapper/308:22:513
3344322122,6sleep30-21swapper/308:17:423
3225752122,6sleep30-21swapper/308:02:533
3129742122,5sleep30-21swapper/307:55:023
2979382122,6sleep30-21swapper/307:40:013
2932142122,6sleep30-21swapper/307:35:283
2825932122,6sleep30-21swapper/307:22:523
2733662122,6sleep30-21swapper/307:17:303
2733662122,6sleep30-21swapper/307:17:303
2705482122,6sleep30-21swapper/307:12:533
5774172112,5sleep30-21swapper/312:22:333
5526282112,5sleep30-21swapper/311:57:333
5323742112,5sleep30-21swapper/311:35:023
5274612112,5sleep30-21swapper/311:30:203
4978362112,5sleep30-21swapper/311:00:023
4729052112,5sleep30-21swapper/310:35:023
4631642112,6sleep30-21swapper/310:27:003
4531792112,6sleep30-21swapper/310:15:483
4035982112,6sleep30-21swapper/309:25:203
3985962112,5sleep30-21swapper/309:20:023
3941952112,5sleep30-21swapper/309:17:373
3787932112,6sleep30-21swapper/309:00:283
3589192112,5sleep30-21swapper/308:42:303
3433912112,6sleep30-21swapper/308:25:043
3229472110,6sleep30-21swapper/308:05:023
2880912112,5sleep30-21swapper/307:30:023
2838892112,5sleep30-21swapper/307:27:373
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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