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2026-08-30 - 00:25

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 Sat Aug 29, 2026 12:44:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
36550162630,9sleep1291ktimers/109:17:401
3525615995242,7cyclictest275-21systemd-journal07:20:001
38186182500,3sleep3575-21kworker/3:2-events12:02:393
3525612994840,5cyclictest3646785-21latency_hist09:10:010
3525615994743,3cyclictest3637189-21kworker/u8:2+events_unbound10:17:311
3525615994641,3cyclictest3557474-21kworker/u8:3+events_unbound08:25:001
3525615994438,5cyclictest3637189-21kworker/u8:2+flush-8:010:37:331
3525615994337,4cyclictest3631753-21kworker/u8:0+flush-8:009:32:441
3525617994233,6cyclictest275-21systemd-journal08:15:002
3525617994233,6cyclictest275-21systemd-journal08:15:002
3525615994236,4cyclictest3696332-21cp10:00:001
3525615994236,4cyclictest3631753-21kworker/u8:0+events_unbound09:47:461
3525615994235,5cyclictest3488834-21kworker/u8:1+flush-8:008:42:461
3525615994234,5cyclictest275-21systemd-journal07:55:001
3525615994137,3cyclictest3637189-21kworker/u8:2+events_unbound09:12:331
3525615994136,4cyclictest3805973-21kworker/u8:0+events_unbound12:02:391
3525615994135,5cyclictest3631753-21kworker/u8:0+flush-8:009:07:451
3525615994135,4cyclictest3805973-21kworker/u8:0+flush-8:012:12:441
3525615994035,4cyclictest3840209-21kworker/u8:3+events_unbound12:32:361
3525615994035,3cyclictest3726473-21kworker/u8:0+events_unbound11:07:381
3525615994035,3cyclictest3726473-21kworker/u8:0+events_unbound11:07:381
3525615994034,4cyclictest3637189-21kworker/u8:2+flush-8:010:07:381
3525615994034,4cyclictest3557474-21kworker/u8:3+events_unbound08:17:341
3525615994033,5cyclictest3488834-21kworker/u8:1+events_unbound08:07:341
3525615993934,3cyclictest3661908-21kworker/u8:3+events_unbound09:27:431
3525615993933,4cyclictest3781278-21kworker/u8:1+events_unbound12:37:331
3525615993933,4cyclictest3637189-21kworker/u8:2+events_unbound10:22:351
3525615993932,5cyclictest3631753-21kworker/u8:0+flush-8:009:22:461
352561299392,32cyclictest3557196-21kworker/0:2+events09:56:400
3525615993834,3cyclictest3637189-21kworker/u8:2+flush-8:009:52:481
3525615993834,3cyclictest3542603-21kworker/u8:2+flush-8:007:27:491
3525615993833,4cyclictest3781278-21kworker/u8:1+flush-8:011:52:331
3525615993833,4cyclictest3557474-21kworker/u8:3+events_unbound08:27:341
3525615993832,5cyclictest3488834-21kworker/u8:1+flush-8:007:10:371
3525615993832,4cyclictest3696041-21kworker/u8:3+events_unbound11:32:391
3525615993733,3cyclictest3781278-21kworker/u8:1+events_unbound12:10:011
3525615993730,5cyclictest3771251-21kworker/u8:0+flush-8:011:22:501
3525612993732,4cyclictest3761300-21kworker/u8:1+flush-8:011:12:390
3525612993732,3cyclictest1-21systemd12:30:000
3525612993729,6cyclictest275-21systemd-journal07:32:490
3525612993728,7cyclictest3533061-21apt-get07:17:300
3525612993726,9cyclictest275-21systemd-journal10:55:000
352561299372,29cyclictest3731498-21kworker/0:0+events10:45:010
352561299370,31cyclictest3731498-21kworker/0:0+events10:45:020
3525617993631,4cyclictest3542603-21kworker/u8:2+flush-8:007:32:352
3525615993632,3cyclictest3726473-21kworker/u8:0+flush-8:010:47:451
3525615993632,3cyclictest3607343-21kworker/u8:0+flush-8:008:37:381
3525615993630,4cyclictest3840209-21kworker/u8:3+flush-8:012:22:501
3525615993630,4cyclictest3696041-21kworker/u8:3+flush-8:011:27:371
352561299362,30cyclictest3557196-21kworker/0:2+events10:25:340
352561299362,28cyclictest3557196-21kworker/0:2+events10:07:300
352561299360,34cyclictest3826121-21true12:10:000
3525617993528,5cyclictest3736477-21cron10:40:002
3525615993530,4cyclictest3586973-21kworker/u8:2+events_unbound08:47:361
3525615993529,5cyclictest3637189-21kworker/u8:2+events_unbound10:02:331
3525615993529,5cyclictest3586973-21kworker/u8:2+flush-8:008:12:441
3525615993529,5cyclictest3586973-21kworker/u8:2+flush-8:008:12:441
3525615993529,5cyclictest3542603-21kworker/u8:2+flush-8:007:47:341
3525612993530,3cyclictest3805973-21kworker/u8:0+flush-8:012:02:470
3525612993528,5cyclictest275-21systemd-journal08:42:450
3525615993430,3cyclictest3726473-21kworker/u8:0+events_unbound10:30:021
3525615993430,3cyclictest3637189-21kworker/u8:2+events_unbound10:42:471
3525615993429,3cyclictest3488834-21kworker/u8:1+flush-8:008:02:351
352561299349,22cyclictest3557196-21kworker/0:2+events08:01:140
3525612993430,2cyclictest3711547-21latency_hist10:15:010
352561299342,27cyclictest3731498-21kworker/0:0+events11:50:290
352561299341,28cyclictest3831035-21kworker/0:2+events12:36:340
352561299341,27cyclictest3557196-21kworker/0:2+events08:30:160
3525617993328,4cyclictest3488834-21kworker/u8:1+flush-8:008:02:482
3525615993328,3cyclictest3542603-21kworker/u8:2+flush-8:007:37:371
3525615993327,3cyclictest3607343-21kworker/u8:0+events_unbound08:32:411
352561299338,20cyclictest3557196-21kworker/0:2+events09:41:140
37466642320,3sleep3575-21kworker/3:2-mm_percpu_wq10:50:003
3525615993228,3cyclictest3761300-21kworker/u8:1+events_unbound11:12:371
3525615993228,3cyclictest3696041-21kworker/u8:3+events_unbound11:35:371
3525615993226,5cyclictest3542603-21kworker/u8:2+flush-8:007:32:331
352561299323,27cyclictest3731498-21kworker/0:0+events11:47:300
352561299323,24cyclictest3557196-21kworker/0:2+events10:17:280
3525612993228,2cyclictest3791221-21idleruntime-cro11:35:000
3525612993223,6cyclictest3701451-21latency_hist10:05:010
352561299322,28cyclictest3557196-21kworker/0:2+events10:22:400
3525612993219,10cyclictest275-21systemd-journal09:25:000
352561299321,30cyclictest3557196-21kworker/0:2+events09:25:540
352561299321,29cyclictest3731498-21kworker/0:0+events10:39:340
3525615993127,3cyclictest3520578-21kworker/u8:0+events_unbound07:22:351
3525615993126,3cyclictest3676727-21kworker/u8:1+events_unbound09:42:301
3525615993125,5cyclictest3786477-21kworker/u8:2+flush-8:011:47:371
3525615993125,4cyclictest3696041-21kworker/u8:3+flush-8:010:12:361
3525615993124,5cyclictest3786477-21kworker/u8:2+events_unbound11:42:461
3525615993123,6cyclictest3676473-21latency_hist09:40:011
3525615993122,7cyclictest3637716-21fschecks_time09:02:341
352561299318,19cyclictest3557196-21kworker/0:2+events09:32:000
352561299316,20cyclictest3731498-21kworker/0:0+events12:10:480
352561299316,20cyclictest3557196-21kworker/0:2+events07:56:450
352561299313,26cyclictest3557196-21kworker/0:2+events08:50:000
3525612993126,3cyclictest3781988-21cut11:27:340
3525612993123,6cyclictest3525447-21latency_hist07:10:010
352561299312,23cyclictest3557196-21kworker/0:2+events09:51:120
352561299311,28cyclictest3831035-21kworker/0:2+events12:32:450
352561299311,25cyclictest3731498-21kworker/0:0+events11:00:140
3525612993111,18cyclictest3557196-21kworker/0:2+events08:21:140
3525617993023,5cyclictest3841634-21cut12:27:342
3525615993025,3cyclictest3557474-21kworker/u8:3+events_unbound07:40:361
3525615993023,5cyclictest3805973-21kworker/u8:0+flush-8:011:57:461
352561299301,27cyclictest3557196-21kworker/0:2+events09:37:360
352561299301,24cyclictest3831035-21kworker/0:2+events12:15:060
352561299301,24cyclictest3530618-21kworker/0:1+events07:41:250
352561299300,25cyclictest3731498-21kworker/0:0+events11:41:250
3525617992925,3cyclictest3756513-21idleruntime-cro11:00:002
3525617992924,4cyclictest3781278-21kworker/u8:1+flush-8:012:07:332
3525617992924,3cyclictest3796991-21fschecks_time11:42:352
3525615992926,2cyclictest3696041-21kworker/u8:3+events_unbound10:27:361
3525615992926,2cyclictest3577265-21systemctl08:00:001
3525615992924,4cyclictest3805973-21kworker/u8:0+events_unbound12:27:291
352561299298,18cyclictest3731498-21kworker/0:0+events11:16:060
352561299297,21cyclictest3557196-21kworker/0:2+events08:36:180
352561299295,23cyclictest3530618-21kworker/0:1+events07:23:040
3525612992925,2cyclictest3686378-21cron09:50:000
352561299292,26cyclictest3731498-21kworker/0:0+events11:57:380
352561299292,26cyclictest3731498-21kworker/0:0+events11:22:480
352561299292,25cyclictest3530618-21kworker/0:1+events07:29:090
352561299292,24cyclictest3557196-21kworker/0:2+events09:16:220
352561299291,26cyclictest3557196-21kworker/0:2+events08:12:450
352561299291,26cyclictest3557196-21kworker/0:2+events08:12:450
352561299291,23cyclictest3557196-21kworker/0:2+events08:55:060
3525617992824,2cyclictest3821158-21cron12:05:002
3525617992824,2cyclictest3657286-21aten2_r5power_v09:22:332
3525617992823,4cyclictest3505648-21kworker/u8:3+flush-8:007:23:042
3525615992824,3cyclictest3805973-21kworker/u8:0+events_unbound12:17:371
3525615992823,4cyclictest3637189-21kworker/u8:2+flush-8:010:57:491
3525615992821,6cyclictest3696041-21kworker/u8:3+events_unbound10:52:461
352561299286,17cyclictest3557196-21kworker/0:2+events09:00:140
352561299282,25cyclictest3557196-21kworker/0:2+events08:05:540
3525612992819,5cyclictest0-21swapper/010:57:310
352561299281,26cyclictest3557196-21kworker/0:2+events08:53:360
352561299281,26cyclictest3557196-21kworker/0:2+events08:29:520
3525617992723,3cyclictest3642632-21fschecks_time09:07:352
3525617992722,3cyclictest3840876-21sh12:25:002
3525617992722,3cyclictest3790361-21missed_timers11:32:412
3525617992722,3cyclictest3671325-21unixbench_singl09:32:492
3525617992720,5cyclictest3711645-21cp10:15:002
3525617992720,5cyclictest275-21systemd-journal11:15:002
3525615992721,5cyclictest3621636-21kworker/u8:3+events_unbound08:52:351
352561299279,17cyclictest3520572-21kworker/0:2+events07:10:380
352561299274,19cyclictest3557196-21kworker/0:2+events08:15:570
352561299271,25cyclictest3731498-21kworker/0:0+events11:35:060
352561299271,25cyclictest3557196-21kworker/0:2+events10:31:250
3525617992623,2cyclictest3632502-21aten2_r5power_v08:57:342
3525617992622,2cyclictest3562986-21aten2_r5power_p07:47:332
3525617992622,2cyclictest3562181-21unixbench_multi07:42:502
3525615992622,3cyclictest3637189-21kworker/u8:2+events_unbound11:03:011
3525615992621,4cyclictest3621636-21kworker/u8:3+events_unbound08:55:011
352561299266,19cyclictest3731498-21kworker/0:0+events11:08:560
352561299266,19cyclictest3731498-21kworker/0:0+events11:08:560
352561299266,19cyclictest3557196-21kworker/0:2+events07:51:140
352561299266,19cyclictest3557196-21kworker/0:2+events07:45:380
352561299265,20cyclictest3557196-21kworker/0:2+events09:11:420
352561299265,19cyclictest3530618-21kworker/0:1+events07:35:060
352561299261,24cyclictest3831035-21kworker/0:2+events12:21:170
3525617992521,2cyclictest3762185-21fschecks_count11:07:352
3525617992521,2cyclictest3762185-21fschecks_count11:07:342
3525617992520,4cyclictest3611683-21unixbench_singl08:32:522
3525617992421,2cyclictest3810823-21unixbench_singl11:52:502
3525617992421,2cyclictest3631702-21cron08:55:002
3525617992421,2cyclictest3616838-21cron08:40:002
3525617992421,2cyclictest3533374-21fschecks_time07:17:342
3525617992420,2cyclictest3677247-21fschecks_time09:42:352
3525617992415,7cyclictest3686387-21/usr/sbin/munin09:50:002
3525617992320,2cyclictest3746409-21grep10:47:502
3525617992318,4cyclictest3761447-21cron11:05:002
3525617992313,7cyclictest275-21systemd-journal07:25:252
3525615992318,4cyclictest3771251-21kworker/u8:0+flush-8:011:17:461
352561799229,9cyclictest3637365-21apt-get09:02:302
3525617992218,3cyclictest0-21swapper/208:00:002
352561799212,14cyclictest3781700-21apt-get11:27:312
352561799212,13cyclictest3647235-21apt-get09:12:302
3525617992117,3cyclictest0-21swapper/210:00:002
3525617992117,2cyclictest3691086-21grep09:52:502
3525617992116,4cyclictest3621542-21unixbench_multi08:42:512
3525617992115,4cyclictest275-21systemd-journal08:30:012
3525617992110,9cyclictest3716732-21awk10:20:002
35208602216,9sleep10-21swapper/107:06:101
361189822011,5sleep30-21swapper/308:35:013
352561799202,12cyclictest3582677-21apt-get08:07:322
3525617992017,2cyclictest3826598-21aten2_r5power_e12:12:312
3525617992016,2cyclictest3832379-21kthreadcore12:17:372
3525617992016,2cyclictest3526182-21tr07:12:332
3525617991915,2cyclictest0-21swapper/210:52:432
3525617991915,2cyclictest0-21swapper/210:45:002
352561799191,13cyclictest3727048-21apt-get10:32:322
3525617991910,7cyclictest3804043-21tr11:47:392
352561799190,17cyclictest3777158-21cut11:22:372
35213672193,9sleep30-21swapper/307:07:363
35208262194,11sleep20-21swapper/207:05:422
352561799186,7cyclictest3672759-21sed09:37:362
3525617991814,2cyclictest0-21swapper/210:07:512
3525617991814,2cyclictest0-21swapper/209:17:342
3525617991813,4cyclictest3771251-21kworker/u8:0+flush-8:011:17:362
3525617991813,4cyclictest3696041-21kworker/u8:3+flush-8:010:27:392
352561799177,8cyclictest3700486-21grep10:02:412
3525617991714,2cyclictest3553178-21fschecks_count07:37:342
3525617991713,3cyclictest3851456-21cpuspeed_turbos12:37:332
3525617991713,2cyclictest3622465-21cpuspeed_turbos08:47:342
3525617991713,2cyclictest0-21swapper/211:57:372
3525617991712,3cyclictest3572518-21sort07:55:012
3525617991711,4cyclictest0-21swapper/211:37:392
352561799170,3cyclictest35945502cut08:17:392
352561799162,2cyclictest0-21swapper/210:22:402
352561799162,13cyclictest0-21swapper/212:31:012
3525617991613,2cyclictest0-21swapper/209:25:092
352561799152,8cyclictest3597499-21apt-get08:22:302
38253282142,8sleep30-21swapper/312:07:423
36904432144,6sleep30-21swapper/309:52:423
36373392142,8sleep30-21swapper/309:02:303
38361702132,6sleep30-21swapper/312:20:023
38314282132,7sleep30-21swapper/312:17:293
38111192133,6sleep30-21swapper/311:55:023
37904422132,7sleep30-21swapper/311:32:433
37522542132,7sleep30-21swapper/310:57:353
37315402132,7sleep30-21swapper/310:35:003
36658432132,7sleep30-21swapper/309:27:423
36510302132,7sleep30-21swapper/309:12:453
35492072132,7sleep30-21swapper/307:32:413
35297782132,7sleep30-21swapper/307:12:463
38555422122,6sleep30-21swapper/312:37:523
38458812122,5sleep30-21swapper/312:30:013
38265452122,6sleep30-21swapper/312:12:323
38034042122,7sleep30-21swapper/311:47:403
37965302122,6sleep30-21swapper/311:41:253
37920382122,6sleep30-21swapper/311:37:363
37816722122,7sleep30-21swapper/311:27:293
37772782122,6sleep30-21swapper/311:22:393
37743252121,7sleep30-21swapper/311:17:423
37466642122,6sleep30-21swapper/310:50:013
37366392122,6sleep30-21swapper/310:40:023
37353562123,6sleep30-21swapper/310:37:413
37221402122,6sleep30-21swapper/310:27:333
37214062122,6sleep30-21swapper/310:22:523
37125592122,6sleep30-21swapper/310:17:343
37079412122,6sleep30-21swapper/310:12:413
36767142123,5sleep30-21swapper/309:40:023
36670682122,6sleep30-21swapper/309:32:323
36574282122,6sleep30-21swapper/309:22:363
36518612122,6sleep30-21swapper/309:15:023
36432022122,6sleep30-21swapper/309:07:403
36368922122,6sleep30-21swapper/309:00:013
36163992122,6sleep30-21swapper/308:37:503
36023772122,6sleep30-21swapper/308:27:063
36015462122,6sleep30-21swapper/308:22:493
35963892122,6sleep30-21swapper/308:17:473
35880282122,6sleep30-21swapper/308:12:383
35880282122,6sleep30-21swapper/308:12:373
35774342122,6sleep30-21swapper/308:00:023
35692742123,6sleep30-21swapper/307:52:393
35627862122,6sleep30-21swapper/307:46:253
35593672122,6sleep30-21swapper/307:42:403
35524712122,5sleep30-21swapper/307:35:013
35427992122,5sleep30-21swapper/307:25:023
35418302122,6sleep30-21swapper/307:22:573
38411792112,6sleep30-21swapper/312:26:003
38064432112,5sleep30-21swapper/311:51:253
37666772112,5sleep30-21swapper/311:10:353
37618212112,6sleep30-21swapper/311:06:543
37618212112,6sleep30-21swapper/311:06:543
37596132112,5sleep30-21swapper/311:02:413
37016712112,5sleep30-21swapper/310:05:023
36969632112,5sleep30-21swapper/310:02:333
36960162112,5sleep30-21swapper/309:57:523
36817582112,6sleep30-21swapper/309:45:523
36756272112,5sleep30-21swapper/309:37:413
36267832112,5sleep30-21swapper/308:50:023
36222462112,5sleep30-21swapper/308:47:333
36172812112,5sleep30-21swapper/308:42:313
35829392112,5sleep30-21swapper/308:07:363
35725602112,5sleep30-21swapper/307:55:123
35329682112,6sleep30-21swapper/307:16:433
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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