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2026-09-22 - 23:49

OSADL QA Farm on Real-time of Mainline Linux

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

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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  Phytec
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: performance
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rackbslot5s.osadl.org (updated Tue Sep 22, 2026 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2883437995531,20cyclictest2928945-21latency_hist09:20:010
2883441995141,6cyclictest2940640-21grep09:50:281
2883437995139,9cyclictest121ktimers/007:20:130
2883441994740,5cyclictest2919999-21kworker/u8:2+events_unbound08:54:281
2883441994431,8cyclictest2954747-21sh10:35:001
2883441994431,8cyclictest2954747-21sh10:35:001
2883441994336,5cyclictest2909698-21kworker/u8:3+events_unbound08:24:241
2883441994236,4cyclictest2963068-21kworker/u8:1+events_unbound10:59:361
2883441994228,5cyclictest131rcu_preempt10:52:141
2883437994236,4cyclictest2909698-21kworker/u8:3+events_unbound08:29:260
2883441994135,4cyclictest2923516-21kworker/u8:1+events_unbound09:14:311
2883441994132,7cyclictest2916581-21kworker/u8:0+events_unbound08:49:271
2883446994033,4cyclictest2944529-21sh10:05:012
2883441994031,4cyclictest0-21swapper/111:45:001
2883449993928,7cyclictest0-21swapper/311:24:593
2883441993930,6cyclictest2897156-21unixbench_multi07:45:261
2883441993928,7cyclictest2995637-21grep12:30:241
2883441993918,10cyclictest131rcu_preempt10:36:521
2883449993831,4cyclictest2953060-21idleruntime-cro10:30:003
2883449993831,4cyclictest2953060-21idleruntime-cro10:29:593
2883446993829,6cyclictest0-21swapper/210:00:012
2883441993832,4cyclictest2964822-21kworker/u8:2+events_unbound11:06:411
2883441993830,4cyclictest0-21swapper/107:55:261
2883441993819,11cyclictest0-21swapper/111:17:131
2883441993818,12cyclictest131rcu_preempt12:00:171
2883437993830,4cyclictest0-21swapper/012:19:590
2883449993728,6cyclictest2992372-21kworker/u8:1+events_unbound12:35:123
2883446993727,6cyclictest0-21swapper/208:20:152
2883441993731,4cyclictest2984028-21kworker/u8:2+events_unbound11:59:431
2883441993722,5cyclictest131rcu_preempt10:41:031
2883437993726,7cyclictest2959444-21grep10:45:250
2883449993629,4cyclictest2966698-21latency_hist11:10:013
2883441993630,4cyclictest2994087-21kworker/u8:0+events_unbound12:29:471
2883441993630,4cyclictest2994087-21kworker/u8:0+events_unbound12:29:471
2883441993625,7cyclictest2982052-21grep11:50:291
2883441993623,5cyclictest131rcu_preempt10:27:001
2883441993623,5cyclictest131rcu_preempt10:27:001
2883441993623,4cyclictest131rcu_preempt07:53:271
2883441993620,5cyclictest131rcu_preempt11:46:491
2883441993615,10cyclictest131rcu_preempt11:13:111
2883441993615,10cyclictest131rcu_preempt10:13:451
2883441993612,6cyclictest131rcu_preempt12:05:171
2883437993630,4cyclictest2911420-21kworker/u8:1+events_unbound08:39:240
2883446993523,9cyclictest2993973-21grep12:25:252
2883446993523,9cyclictest2993973-21grep12:25:242
2883446993523,8cyclictest2920206-21sh08:55:002
2883441993519,5cyclictest131rcu_preempt09:25:201
2883441993518,4cyclictest131rcu_preempt09:45:011
2883441993518,3cyclictest0-21swapper/109:00:331
2883441993516,3cyclictest0-21swapper/108:38:071
2883441993515,10cyclictest131rcu_preempt07:35:181
2883441993513,10cyclictest131rcu_preempt07:43:311
2883437993526,5cyclictest0-21swapper/011:00:010
2883437993525,7cyclictest2906170-21latency_hist08:15:010
2883437993524,7cyclictest2979054-21cron11:45:010
2883449993426,4cyclictest0-21swapper/310:00:243
2883449993424,6cyclictest0-21swapper/308:50:273
2883446993426,4cyclictest0-21swapper/207:39:152
2883446993424,6cyclictest0-21swapper/209:30:222
2883446993423,6cyclictest0-21swapper/207:20:242
2883446993421,9cyclictest311ktimers/211:20:142
2883441993424,5cyclictest0-21swapper/112:20:151
2883441993421,4cyclictest131rcu_preempt09:31:371
2883441993420,4cyclictest131rcu_preempt07:29:211
2883441993416,5cyclictest131rcu_preempt08:20:021
2883437993425,4cyclictest0-21swapper/008:04:180
2883437993423,8cyclictest121ktimers/007:35:120
2883437993422,8cyclictest2933662-21grep09:30:280
2883449993325,4cyclictest0-21swapper/312:00:003
2883449993323,8cyclictest391ktimers/308:45:133
2883449993323,7cyclictest391ktimers/307:10:123
2883446993326,4cyclictest0-21swapper/207:15:272
2883446993325,5cyclictest0-21swapper/208:00:012
2883441993322,7cyclictest2886905-21grep07:15:271
2883441993322,4cyclictest131rcu_preempt11:28:331
2883441993320,5cyclictest131rcu_preempt10:07:071
2883441993319,5cyclictest131rcu_preempt09:18:411
2883441993317,5cyclictest131rcu_preempt12:18:331
2883441993316,10cyclictest131rcu_preempt09:09:411
2883441993314,3cyclictest0-21swapper/109:46:291
2883441993313,7cyclictest24-21ksoftirqd/110:24:591
2883441993313,4cyclictest0-21swapper/110:49:591
2883441993312,4cyclictest131rcu_preempt08:56:191
288343799332,8cyclictest11-21ksoftirqd/011:35:120
2883437993326,4cyclictest0-21swapper/008:20:240
2883437993314,6cyclictest131rcu_preempt11:10:110
2883449993224,4cyclictest0-21swapper/312:20:143
2883449993224,4cyclictest0-21swapper/309:30:293
2883449993220,8cyclictest0-21swapper/311:35:013
2883446993225,4cyclictest0-21swapper/212:05:262
2883446993225,4cyclictest0-21swapper/211:25:242
2883446993224,4cyclictest0-21swapper/212:00:252
2883446993222,7cyclictest0-21swapper/211:40:012
2883441993221,7cyclictest0-21swapper/107:30:261
2883441993219,5cyclictest131rcu_preempt08:00:231
2883441993218,5cyclictest2992372-21kworker/u8:1+events_unbound12:39:381
2883441993216,4cyclictest131rcu_preempt08:27:331
2883441993214,4cyclictest131rcu_preempt10:02:001
2883441993214,10cyclictest131rcu_preempt07:13:521
2883441993210,10cyclictest131rcu_preempt09:55:331
288343799326,4cyclictest131rcu_preempt08:40:140
2883437993226,4cyclictest2942644-21kworker/u8:1+events_unbound10:00:220
2883437993224,6cyclictest2939188-21kworker/u8:3+events_unbound09:59:340
2883437993223,6cyclictest0-21swapper/007:20:000
2883437993222,7cyclictest2960795-21find10:50:270
2883437993217,6cyclictest2907900-21kworker/u8:0+events_unbound08:31:240
2883449993123,4cyclictest0-21swapper/310:55:003
2883449993122,6cyclictest2887373-21sh07:19:593
2883446993124,4cyclictest2936001-21sendmail09:40:012
2883446993122,6cyclictest2966237-21grep11:05:262
2883446993121,7cyclictest2922370-21fschecks_time09:00:182
2883446993121,6cyclictest0-21swapper/208:00:262
2883446993120,7cyclictest0-21swapper/207:15:022
2883441993118,5cyclictest131rcu_preempt08:08:141
2883441993114,10cyclictest131rcu_preempt11:20:251
2883441993113,9cyclictest131rcu_preempt10:18:301
2883441993112,5cyclictest131rcu_preempt08:31:021
288343799312,4cyclictest131rcu_preempt11:05:140
2883437993124,3cyclictest0-21swapper/012:25:250
2883437993124,3cyclictest0-21swapper/012:25:250
2883437993123,4cyclictest0-21swapper/009:09:290
2883449993022,4cyclictest0-21swapper/310:20:273
2883449993022,4cyclictest0-21swapper/308:25:163
2883449993022,4cyclictest0-21swapper/308:20:243
2883446993023,4cyclictest0-21swapper/208:25:262
2883446993022,5cyclictest0-21swapper/208:35:012
2883446993020,6cyclictest0-21swapper/212:00:002
288344199306,15cyclictest24-21ksoftirqd/107:20:191
2883441993022,6cyclictest2964822-21kworker/u8:2+events_unbound11:36:411
2883441993019,5cyclictest131rcu_preempt08:14:571
2883441993018,4cyclictest131rcu_preempt09:37:051
2883441993015,5cyclictest131rcu_preempt11:30:201
2883441993012,4cyclictest131rcu_preempt08:42:271
2883441993012,10cyclictest131rcu_preempt12:10:231
2883449992923,3cyclictest0-21swapper/311:00:013
2883449992921,5cyclictest0-21swapper/309:05:243
2883449992920,5cyclictest0-21swapper/311:40:013
2883449992919,6cyclictest0-21swapper/309:40:243
2883446992923,3cyclictest0-21swapper/208:20:002
2883446992922,4cyclictest0-21swapper/209:50:292
2883446992918,7cyclictest0-21swapper/209:20:282
288344199291,15cyclictest0-21swapper/111:00:151
288343799297,5cyclictest131rcu_preempt12:10:260
2883437992923,4cyclictest2892175-21kworker/u8:0+events_unbound07:54:430
2883437992922,4cyclictest0-21swapper/012:00:260
2883437992922,3cyclictest0-21swapper/009:25:250
2883437992921,4cyclictest0-21swapper/011:05:010
288343799292,12cyclictest0-21swapper/009:49:010
2883437992919,6cyclictest2917835-21grep08:45:260
2883437992917,5cyclictest29692032ntpq11:15:200
2883449992821,4cyclictest0-21swapper/311:00:253
2883449992821,3cyclictest0-21swapper/312:20:003
2883449992819,5cyclictest0-21swapper/312:15:003
2883449992819,4cyclictest0-21swapper/309:00:013
2883446992822,3cyclictest0-21swapper/211:50:012
2883446992821,4cyclictest0-21swapper/211:50:292
2883446992819,5cyclictest0-21swapper/210:14:592
2883446992817,6cyclictest0-21swapper/209:20:002
288343799289,4cyclictest131rcu_preempt12:30:110
2883437992819,6cyclictest2904034-21unixbench_singl08:05:270
288343799281,13cyclictest0-21swapper/009:35:050
2883449992719,4cyclictest0-21swapper/309:05:013
2883446992721,3cyclictest0-21swapper/207:30:012
2883446992720,4cyclictest0-21swapper/212:20:242
2883446992720,4cyclictest0-21swapper/208:55:262
2883446992719,5cyclictest0-21swapper/208:40:262
288343799278,16cyclictest2997842-21idleruntime-cro12:40:000
288343799275,9cyclictest11-21ksoftirqd/009:50:290
2883437992720,4cyclictest2883430-21cyclictest12:20:230
2883437992720,3cyclictest0-21swapper/011:25:000
2883437992720,3cyclictest0-21swapper/007:15:010
2883437992717,5cyclictest0-21swapper/008:55:260
2883437992713,8cyclictest131rcu_preempt09:10:190
2883449992619,4cyclictest391ktimers/307:50:243
2883449992618,3cyclictest0-21swapper/312:25:133
2883449992618,3cyclictest0-21swapper/312:25:123
2883449992617,6cyclictest2915286-21grep08:40:163
2883449992616,5cyclictest0-21swapper/310:10:003
2883446992619,3cyclictest0-21swapper/212:40:002
2883446992618,5cyclictest0-21swapper/209:05:252
2883446992617,6cyclictest2916987-21tune2fs08:45:152
288343799268,11cyclictest11-21ksoftirqd/010:15:270
288343799261,9cyclictest2946233-21latency_hist10:10:000
2883437992614,3cyclictest11-21ksoftirqd/007:57:360
2883437992611,7cyclictest131rcu_preempt10:30:010
2883437992611,7cyclictest131rcu_preempt10:30:000
2883449992519,4cyclictest391ktimers/309:20:133
2883449992518,3cyclictest0-21swapper/308:15:173
2883449992516,5cyclictest2901039-21idleruntime-cro08:00:013
2883449992516,4cyclictest0-21swapper/310:10:283
2883449992515,7cyclictest2938123-21fschecks_time09:45:183
2883449992515,6cyclictest2956840-21fschecks_count10:40:133
2883449992515,6cyclictest2926634-21grep09:10:253
2883449992515,6cyclictest0-21swapper/310:30:213
2883449992515,6cyclictest0-21swapper/310:30:213
2883446992519,3cyclictest0-21swapper/211:00:232
2883446992518,4cyclictest0-21swapper/208:05:272
2883446992518,4cyclictest0-21swapper/207:40:232
2883446992517,5cyclictest0-21swapper/212:15:182
2883446992517,4cyclictest0-21swapper/210:45:002
288343799258,5cyclictest11-21ksoftirqd/008:15:190
288343799258,10cyclictest11-21ksoftirqd/008:50:150
288343799257,4cyclictest2947637-21runrttasks10:11:390
288343799252,6cyclictest131rcu_preempt07:45:130
2883437992519,4cyclictest2888715-21kworker/u8:1+events_unbound07:29:140
2883437992519,3cyclictest2894766-21if_eth107:40:160
2883437992512,11cyclictest11-21ksoftirqd/010:30:300
2883437992512,11cyclictest11-21ksoftirqd/010:30:300
288343799250,12cyclictest0-21swapper/010:35:240
2883449992417,5cyclictest2963068-21kworker/u8:1+events_unbound11:11:273
2883449992417,3cyclictest0-21swapper/309:25:163
2883449992416,5cyclictest0-21swapper/307:40:233
2883449992412,8cyclictest2928758-21dpkg09:20:013
2883446992418,3cyclictest0-21swapper/210:05:252
2883446992417,4cyclictest0-21swapper/210:15:272
2883446992417,4cyclictest0-21swapper/209:25:162
2883446992415,6cyclictest2926194-21grep09:10:242
2883446992415,5cyclictest0-21swapper/210:40:002
288343799246,16cyclictest2883430-21cyclictest09:21:150
2883437992418,4cyclictest2971828-21kworker/u8:1+events_unbound11:32:350
2883437992418,4cyclictest2949573-21kworker/u8:1+events_unbound10:21:250
2883437992417,5cyclictest2956080-21kworker/u8:1+events_unbound10:41:070
2883437992416,5cyclictest0-21swapper/009:05:000
2883437992414,8cyclictest121ktimers/012:05:120
288343799241,3cyclictest131rcu_preempt11:25:120
288343799240,3cyclictest0-21swapper/011:47:010
288343799240,20cyclictest0-21swapper/011:58:360
2883449992315,4cyclictest0-21swapper/308:30:263
2883449992313,5cyclictest2985874-21cron12:05:003
2883446992316,5cyclictest0-21swapper/209:45:262
2883446992316,4cyclictest0-21swapper/210:20:182
2883446992315,5cyclictest0-21swapper/210:50:282
2883446992314,6cyclictest2906140-21apt08:15:002
2883446992314,6cyclictest0-21swapper/211:30:182
288343799238,3cyclictest11-21ksoftirqd/009:40:240
2883437992311,10cyclictest121ktimers/011:50:180
2883449992216,3cyclictest2942803-21cron10:00:013
2883449992214,5cyclictest0-21swapper/310:35:243
2883449992213,6cyclictest391ktimers/308:05:203
2883446992216,3cyclictest0-21swapper/211:10:142
2883446992216,3cyclictest0-21swapper/210:25:202
2883446992216,3cyclictest0-21swapper/210:25:202
2883446992216,3cyclictest0-21swapper/208:35:152
2883446992215,4cyclictest0-21swapper/209:45:002
2883446992214,5cyclictest2962804-21grep10:55:232
2883446992213,6cyclictest0-21swapper/207:45:212
2883437992211,7cyclictest0-21swapper/007:30:260
288344999216,7cyclictest2981427-21cat11:50:213
2883449992114,5cyclictest2977205-21kworker/u8:3+events_unbound11:44:423
2883449992114,4cyclictest2970106-21sendmail11:20:003
2883449992113,5cyclictest0-21swapper/307:45:263
2883449992113,4cyclictest0-21swapper/309:50:293
2883449992110,8cyclictest2891267-21ls07:30:173
2883446992115,3cyclictest0-21swapper/212:30:242
2883446992115,3cyclictest0-21swapper/207:30:252
288344699211,3cyclictest131rcu_preempt12:10:262
2883446992113,5cyclictest0-21swapper/211:40:142
288344999209,7cyclictest164-21systemd-journal07:29:133
2883449992013,5cyclictest391ktimers/310:45:233
2883449992013,4cyclictest391ktimers/309:35:113
2883449992013,4cyclictest0-21swapper/308:35:243
2883449992012,6cyclictest2893197-21sed07:35:203
2883446992014,3cyclictest0-21swapper/210:45:142
2883446992014,3cyclictest0-21swapper/207:50:182
288344999199,7cyclictest2901475-21tune2fs08:00:173
288344999199,6cyclictest0-21swapper/311:25:203
2883449991913,3cyclictest2995315-21rt-features12:30:223
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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