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2026-08-26 - 16:22

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, 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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  Congatec
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.
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 highest latencies:
System rackeslot8s.osadl.org (updated Wed Aug 26, 2026 12:43:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2806243992713,1cyclictest0-21swapper/311:20:183
2806243992622,1cyclictest0-21swapper/310:30:003
2806243992522,1cyclictest0-21swapper/309:55:013
2806243992521,1cyclictest0-21swapper/310:05:173
2806243992513,1cyclictest0-21swapper/307:52:353
2806243992510,1cyclictest0-21swapper/311:15:193
2806243992411,2cyclictest0-21swapper/308:05:173
2806243992411,1cyclictest0-21swapper/310:35:273
2806243992321,1cyclictest0-21swapper/311:05:013
2806243992215,5cyclictest0-21swapper/310:55:143
2806243992212,1cyclictest0-21swapper/307:56:543
2806243992211,1cyclictest0-21swapper/310:15:183
2806243992118,1cyclictest0-21swapper/307:15:153
280624399211,13cyclictest3008371-21turbostat09:39:593
30716562190,6sleep03072580-21sed10:20:170
2806243991816,1cyclictest0-21swapper/307:10:013
2806243991815,1cyclictest0-21swapper/310:50:253
2806243991815,1cyclictest0-21swapper/310:50:243
2806243991815,1cyclictest0-21swapper/309:50:003
280624399181,12cyclictest2853292-21taskset07:45:013
280624399180,14cyclictest3281847-21turbostat12:35:003
280624399177,7cyclictest32119562sleep311:50:173
2806243991715,1cyclictest0-21swapper/311:40:203
280624399171,12cyclictest2962327-21taskset09:10:153
280624399171,11cyclictest3045915-21taskset10:00:493
280624399171,11cyclictest2928757-21taskset08:40:233
280624399171,10cyclictest29043792sleep308:25:123
280624399167,7cyclictest28851852sleep308:10:123
280624399164,9cyclictest2846660-21turbostat07:40:013
280624399164,9cyclictest2846660-21turbostat07:40:003
280624399162,11cyclictest0-21swapper/312:12:543
280624399162,11cyclictest0-21swapper/311:06:243
280624399162,11cyclictest0-21swapper/307:10:293
280624399162,10cyclictest2999278-21taskset09:31:253
280624399161,9cyclictest31076342sleep310:40:223
2806243991613,1cyclictest0-21swapper/312:00:163
2806243991613,1cyclictest0-21swapper/311:35:123
2806243991613,1cyclictest0-21swapper/309:25:163
2806243991613,1cyclictest0-21swapper/309:20:143
2806243991613,1cyclictest0-21swapper/307:30:153
280624399161,11cyclictest3265189-21taskset12:22:163
280624399161,11cyclictest3258385-21turbostat12:20:013
280624399161,11cyclictest3187208-21taskset11:32:303
280624399161,11cyclictest3178752-21taskset11:25:453
280624399161,11cyclictest3077236-21taskset10:21:063
280624399161,11cyclictest2891608-21chrt08:15:123
280624399161,10cyclictest3156043-21taskset11:12:203
2806243991512,1cyclictest0-21swapper/312:35:123
2806243991512,1cyclictest0-21swapper/308:56:453
2806243991512,1cyclictest0-21swapper/307:25:143
280624399151,11cyclictest3241661-21taskset12:06:533
280624399151,11cyclictest3014079-21taskset09:40:243
280624399151,11cyclictest0-21swapper/310:11:493
280624399151,10cyclictest3225214-21taskset11:55:243
280624399151,10cyclictest3210392-21taskset11:47:023
280624399151,10cyclictest3110091-21taskset10:45:013
280624399151,10cyclictest3038386-21taskset09:56:363
280624399151,10cyclictest2975804-21taskset09:16:173
280624399151,10cyclictest2961342-21taskset09:08:023
280624399151,10cyclictest2941995-21taskset08:50:393
280624399151,10cyclictest2917157-21chrt08:35:143
280624399151,10cyclictest2916510-21taskset08:30:373
280624399151,10cyclictest2903196-21taskset08:20:233
280624399151,10cyclictest2872411-21taskset08:00:083
280624399151,10cyclictest2821326-21taskset07:20:033
31576282141,4sleep03157801-21/usr/sbin/munin11:15:160
30864192140,12sleep23086679-21latency_hist10:30:012
280624399141,9cyclictest3092126-21taskset10:30:263
2806243991411,1cyclictest0-21swapper/312:25:123
2806243991411,1cyclictest0-21swapper/309:00:193
280624399140,10cyclictest2935656-21taskset08:45:573
280624399140,10cyclictest2935656-21taskset08:45:563
30622362130,10sleep02961522-21diskmemload10:12:470
280624399131,9cyclictest2859191-21taskset07:47:013
32499252121,8sleep22961522-21diskmemload12:13:172
31261042120,3sleep13126141-21apt-get10:55:111
30446292121,8sleep10-21swapper/110:00:201
30086672120,9sleep22961522-21diskmemload09:40:082
28297412120,2sleep00-21swapper/007:25:170
28277332122,5sleep22827755-21apt-get07:25:122
28149502120,3sleep12814983-21apt-get07:15:131
32650272111,7sleep12961522-21diskmemload12:21:511
32491922110,7sleep02961522-21diskmemload12:11:150
32267102110,7sleep12961522-21diskmemload11:58:451
31961942111,7sleep13196201-21/usr/sbin/munin11:40:121
31724672110,1sleep20-21swapper/211:25:002
31263122110,7sleep03126433-21/usr/sbin/munin10:55:150
31169412110,7sleep02961522-21diskmemload10:48:050
30088902110,8sleep13008944-21cut09:40:151
29313152110,7sleep22932953-21grep08:45:172
29313152110,7sleep22932953-21grep08:45:162
28775682111,7sleep22877607-21ntpq08:00:202
32890582100,7sleep23289062-21ssh12:38:242
32031792101,2sleep00-21swapper/011:43:440
31084872100,7sleep03108492-21sh10:41:140
30642662100,7sleep13065021-21kthreadcore10:15:161
29780172100,7sleep12978959-21uname09:20:161
29031542101,5sleep22903194-21ntpq08:20:232
28340892101,4sleep12834121-21apt-get07:30:121
3249089290,6sleep13249095-21ssh12:10:521
3235303291,4sleep23235338-21apt-get12:05:122
3196203291,4sleep23196234-21apt-get11:40:132
3180556291,4sleep23180593-21apt-get11:30:092
3149583290,5sleep23149589-21ssh11:10:122
3070315290,6sleep23070319-21ssh10:18:342
3061436293,4sleep1341ktimers/110:10:301
3006837291,4sleep23006843-21ssh09:35:422
3000896291,4sleep13000898-21apt-get09:35:131
2947743292,4sleep22947782-21ntpq08:55:232
2910741291,4sleep12910743-21apt-get08:30:111
2858526291,4sleep02858567-21ntpq07:45:230
2811647290,6sleep12811692-21ntp_offset07:10:221
2805155290,4sleep22805196-21ntpq07:05:222
3273960280,5sleep090-21kswapd012:30:000
3272521280,1sleep20-21swapper/212:25:532
3263949281,4sleep23263982-21ntpq12:20:232
3259095280,5sleep03259191-21irqcore12:20:180
3233690280,5sleep13233696-21ssh12:01:211
3227053280,2sleep23227059-21ssh11:59:382
3148651280,6sleep02961522-21diskmemload11:08:260
3141103281,3sleep13141107-21ssh11:04:091
3133947281,4sleep23133950-21apt-get11:00:132
3126146281,3sleep20-21swapper/210:55:122
3124089280,4sleep13124099-21apt-get10:50:591
3124089280,4sleep13124099-21apt-get10:50:581
3115388281,4sleep190-21kswapd010:45:251
3108397280,4sleep20-21swapper/210:41:002
3101945280,5sleep02961522-21diskmemload10:39:460
3099810281,4sleep23099848-21ntpq10:35:222
3080446280,5sleep13081958-21cat10:25:181
3079011280,6sleep00-21swapper/010:25:130
3039994281,3sleep23040000-21ssh10:00:132
3039402280,1sleep20-21swapper/209:59:292
3025255280,6sleep13025930-21cut09:50:171
2993132280,4sleep12993136-21ssh09:30:121
2977495281,3sleep02977530-21apt-get09:20:120
2961787281,3sleep10-21swapper/109:10:061
2955801280,5sleep02956311-21cut09:05:160
2954523280,5sleep02954767-21users09:00:260
2954274281,4sleep12954290-21ntp_states09:00:231
2876438280,5sleep02877432-21memory08:00:180
2871177281,4sleep02871217-21ntpq07:55:220
2859691281,3sleep02859724-21apt-get07:50:120
2824149281,4sleep20-21swapper/207:20:182
2811806280,5sleep02811904-21switchtime07:10:250
3289284270,3sleep13289290-21ssh12:38:591
3282229270,4sleep03282388-21df_inode12:35:130
3276323270,3sleep13278025-21ssh12:30:181
3257225270,3sleep02961522-21diskmemload12:16:480
3233876271,3sleep23233884-21ssh12:01:582
3225653270,1sleep00-21swapper/011:55:470
3218548270,1sleep20-21swapper/211:53:092
3212164270,5sleep03212419-21cut11:50:170
3207962270,4sleep03209033-21memory11:45:200
3188353271,3sleep23188357-21ssh11:35:032
3187926270,1sleep00-21swapper/011:34:380
3186728271,3sleep13186734-21ssh11:31:101
3178106271,3sleep00-21swapper/011:25:220
3173289271,3sleep10-21swapper/111:25:151
3170261271,3sleep13170294-21ssh11:20:221
3162770270,4sleep23162892-21cat11:15:262
3156251270,4sleep10-21swapper/111:13:001
3143185270,4sleep13144137-21cut11:05:191
3141930271,3sleep2441ktimers/211:05:162
3139176271,3sleep03139219-21ntpq11:00:230
3108544271,4sleep10-21swapper/110:41:231
3093559271,4sleep00-21swapper/010:33:120
3087162270,1sleep13087256-21ssh10:30:171
3070825270,4sleep01-21systemd10:20:000
3061441271,4sleep20-21swapper/210:10:312
3049193273,2sleep2411irq_work/210:05:192
3045211270,4sleep03045264-21ntp_states10:00:230
3033570272,2sleep13034854-21kthreadcore09:55:191
3024299270,3sleep00-21swapper/009:50:120
3023913270,1sleep23023919-21ssh09:49:502
3022428270,1sleep10-21swapper/109:45:481
3021704270,4sleep03021751-21ntpq09:45:230
3013943270,5sleep03013982-21ntpq09:40:210
3008328270,2sleep00-21swapper/009:39:570
2998918270,1sleep20-21swapper/209:30:292
2991862270,4sleep12991868-21ssh09:27:261
2986823270,4sleep22988539-21tr09:25:192
2975009270,3sleep12975040-21ssh09:15:241
2967902270,1sleep22967904-21ssh09:11:032
2960554271,3sleep22960588-21ntpq09:05:222
2947601270,3sleep12947741-21ntpq08:55:231
2928727270,3sleep22928756-21collect208:40:232
2928630271,3sleep02928669-21ntpq08:40:210
2903237270,4sleep02903313-21cut08:20:250
2848352271,3sleep12849668-21kthreadcore07:40:181
2840209270,3sleep00-21swapper/007:35:000
2831556270,4sleep12832716-21memory07:25:191
2817807271,3sleep00-21swapper/007:15:200
3278038261,3sleep20-21swapper/212:30:192
3274362260,3sleep03274512-21df12:30:130
3256797260,4sleep20-21swapper/212:15:352
3241462260,3sleep13241466-21ssh12:06:151
3228412260,3sleep03229094-21kthreadcore12:00:160
3217665260,2sleep10-21swapper/111:50:341
3210762260,4sleep10-21swapper/111:48:091
3188454261,2sleep13188612-21ssh11:35:141
3188449261,2sleep00-21swapper/011:35:130
3172833260,3sleep23172993-21diskstats11:25:132
3162416260,3sleep10-21swapper/111:15:211
3156028260,3sleep02961522-21diskmemload11:12:180
3124295260,3sleep03124327-21dpkg-deb10:51:090
3124295260,3sleep03124327-21dpkg-deb10:51:090
3123575260,3sleep20-21swapper/210:50:272
3123575260,3sleep20-21swapper/210:50:262
3116316260,1sleep23116322-21ssh10:46:182
3101746260,1sleep10-21swapper/110:39:141
3092744260,4sleep22942247-21kworker/u16:3+xprtiod10:30:502
3078041260,1sleep20-21swapper/210:23:202
3053610260,1sleep00-21swapper/010:05:320
3032152261,2sleep00-21swapper/009:55:140
3029786260,3sleep23029939-21cat09:50:262
2993090260,3sleep02993131-21ssh09:30:110
2978961260,3sleep22980498-21kthreadcore09:20:172
2976837260,4sleep0223-21plymouthd09:19:110
2969706260,3sleep22969712-21ssh09:15:132
2949057261,2sleep20-21swapper/209:00:122
2946861260,3sleep02947600-21memory08:55:220
2939445260,3sleep02941185-21latency08:50:190
2936272260,3sleep10-21swapper/108:50:131
2936227260,1sleep20-21swapper/208:50:022
2929852261,2sleep00-21swapper/008:45:110
2929852261,2sleep00-21swapper/008:45:100
2923484260,1sleep10-21swapper/108:40:061
2923016260,1sleep10-21swapper/108:37:381
2922908260,1sleep00-21swapper/008:36:130
2922134260,3sleep22922254-21ntpq08:35:222
2904381260,3sleep02904529-21df08:25:130
2903107261,2sleep10-21swapper/108:20:221
2891607260,3sleep20-21swapper/208:15:122
2891571260,3sleep12891604-21apt-get08:15:111
2891305260,3sleep22891313-21unix_chkpwd08:15:002
2886614260,3sleep12887401-21grep08:10:191
2884822260,1sleep10-21swapper/108:08:461
2872015260,1sleep20-21swapper/207:58:372
2871867260,4sleep10-21swapper/107:56:431
2853327260,3sleep12853360-21apt-get07:45:121
2852165261,2sleep20-21swapper/207:40:232
2835057260,3sleep22835945-21cut07:30:172
2822769260,3sleep12824147-21kthreadcore07:20:171
2800104260,3sleep10-21swapper/107:05:131
2800068261,2sleep00-21swapper/007:05:120
3252321250,2sleep13253582-21ssh12:15:181
3241266251,2sleep00-21swapper/012:05:420
3210329251,2sleep20-21swapper/211:46:542
3077484250,3sleep10-21swapper/110:21:461
2985344250,2sleep00-21swapper/009:25:130
2963286250,2sleep00-21swapper/009:10:170
2929888250,2sleep10-21swapper/108:45:121
2929888250,2sleep10-21swapper/108:45:111
2910100250,1sleep20-21swapper/208:25:392
2890205250,2sleep02890344-21ntp_kernel_err08:10:220
2884850250,1sleep20-21swapper/208:09:082
2878800250,2sleep00-21swapper/008:05:120
2865563250,1sleep10-21swapper/107:52:091
2865542250,1sleep20-21swapper/207:51:542
2853363251,2sleep20-21swapper/207:45:132
2852859250,1sleep00-21swapper/007:42:260
2845671250,2sleep10-21swapper/107:35:221
2845671250,2sleep10-21swapper/107:35:211
2843534251,2sleep22843551-21kthreadcore07:35:192
2843534251,2sleep22843551-21kthreadcore07:35:182
2840510250,2sleep00-21swapper/007:35:130
2840510250,2sleep00-21swapper/007:35:120
2814986250,2sleep20-21swapper/207:15:132
2812253250,1sleep20-21swapper/207:11:012
3267608240,1sleep10-21swapper/112:25:161
3165091240,2sleep0223-21plymouthd11:20:140
3047445240,1sleep10-21swapper/110:05:021
2960506240,1sleep10-21swapper/109:05:211
2911595240,2sleep22912173-21kthreadcore08:30:172
2904530240,2sleep12904609-21fschecks_time08:25:141
2894276240,2sleep02896143-21kthreadcore08:15:180
2872445240,1sleep10-21swapper/108:00:111
2821373240,2sleep00-21swapper/007:20:120
2910704230,1sleep00-21swapper/008:30:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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