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2026-09-09 - 12:57

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #f, slot #7

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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Click here to display the system's profile data.
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 the highest latencies:
System rackfslot7s.osadl.org (updated Wed Sep 09, 2026 00:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
381988399363918,3616cyclictest3833398-21kworker/2:1+events19:50:182
381988199344216,3421cyclictest3860780-21kworker/1:2+events21:16:231
381987699316115,3142cyclictest3875127-21kworker/0:0+events22:00:230
381988399308415,3066cyclictest3860629-21kworker/2:0+events21:30:242
381988199304015,3020cyclictest3848725-21kworker/1:1+events20:45:001
381988699303415,3015cyclictest3896133-21kworker/3:2+events23:05:173
381987699302314,3004cyclictest3880019-21kworker/0:1+events22:25:150
381987699297714,2958cyclictest3843069-21kworker/0:2+events20:20:150
381988399286614,2847cyclictest3808594-21kworker/2:2+events19:25:112
381988199283313,2817cyclictest3854200-21kworker/1:1+events20:59:231
381987699283013,2813cyclictest3835456-21kworker/0:0+events20:12:370
381988399282410,2809cyclictest3883037-21kworker/2:2+events22:40:212
381988699280513,2788cyclictest3903874-21kworker/3:0+events23:26:573
381987699279913,2782cyclictest3844772-21kworker/0:0+events20:27:260
381988699279312,2778cyclictest3852570-21kworker/3:2+events20:50:373
381988699279112,2775cyclictest3896133-21kworker/3:2+events23:23:073
381987699278713,2770cyclictest3849577-21kworker/0:2+events20:58:360
381988199278013,2762cyclictest3910440-21kworker/1:1+events23:55:141
381988699277713,2760cyclictest3836783-21kworker/3:2+events20:05:263
381988699277513,2758cyclictest3836783-21kworker/3:2+events20:03:543
381988699277213,2755cyclictest3840088-21kworker/3:0+events20:28:353
381988699277113,2754cyclictest3848122-21kworker/3:0+events20:37:423
381988699277012,2756cyclictest3846521-21kworker/3:2+events20:30:083
381988699277012,2756cyclictest3846521-21kworker/3:2+events20:30:073
381988699274413,2727cyclictest3917207-21kworker/3:2+events00:13:513
381988699273913,2722cyclictest3905574-21kworker/3:1+events23:54:513
381988699273313,2716cyclictest3840088-21kworker/3:0+events20:11:083
381988699270912,2693cyclictest3854229-21kworker/3:0+events21:13:193
381988699268913,2672cyclictest3894222-21kworker/3:1+events22:59:153
381988399268711,2672cyclictest3848204-21kworker/2:2+events20:45:212
381988699268413,2667cyclictest3873312-21kworker/3:2+events21:53:543
381988699268313,2666cyclictest3868733-21kworker/3:2+events21:40:013
381987699266011,2647cyclictest3863859-21kworker/0:1+events21:37:200
381987699265413,2638cyclictest3831944-21kworker/0:1+events19:55:130
381987699265212,2636cyclictest3857366-21kworker/0:0+events21:19:500
381988399265113,2634cyclictest3870382-21kworker/2:0+events21:46:452
381988399264112,2625cyclictest3848204-21kworker/2:2+events20:43:532
381987699264012,2624cyclictest3863859-21kworker/0:1+events21:42:140
381988199263713,2620cyclictest3852600-21kworker/1:2+events21:01:391
381988199263512,2620cyclictest3846428-21kworker/1:0+events20:29:451
381988699263212,2616cyclictest3919023-21kworker/3:0+events00:16:323
381988199263211,2617cyclictest3920099-21kworker/1:1+events00:32:501
381988699263011,2615cyclictest3830150-21kworker/3:0+events19:53:413
381988399262913,2612cyclictest3909213-21kworker/2:2+events00:05:272
38198869926247,2613cyclictest3836783-21kworker/3:2+events20:15:153
38198769926249,2610cyclictest3896103-21kworker/0:0+events23:06:030
381988699262213,2605cyclictest3852570-21kworker/3:2+events20:46:533
381988699262212,2606cyclictest3854229-21kworker/3:0+events21:22:493
381987699261713,2600cyclictest3860593-21kworker/0:2+events21:23:140
381987699260912,2593cyclictest3905449-21kworker/0:1+events23:46:270
38198869926079,2595cyclictest3832295-21kworker/3:2+events19:49:563
381988199258612,2571cyclictest3826741-21kworker/1:2+events19:48:461
381988399258412,2568cyclictest3899217-21kworker/2:2+events23:18:592
381987699258212,2567cyclictest3875127-21kworker/0:0+events22:16:490
381987699258112,2565cyclictest3860593-21kworker/0:2+events21:31:530
381988699257712,2562cyclictest3892565-21kworker/3:0+events23:02:393
381988699257712,2562cyclictest3808386-21kworker/3:0+events19:31:373
381988699257712,2561cyclictest3871686-21kworker/3:1+events21:55:043
381988399257612,2560cyclictest3857163-21kworker/2:0+events21:02:252
381988199257413,2557cyclictest3823539-21kworker/1:0+events19:27:271
381987699257412,2558cyclictest3913650-21kworker/0:0+events00:01:160
381987699257412,2558cyclictest3863859-21kworker/0:1+events21:26:350
381988199257212,2556cyclictest3860780-21kworker/1:2+events21:22:291
381987699257211,2557cyclictest3890943-21kworker/0:0+events22:52:510
381987699257211,2557cyclictest3840537-21kworker/0:1+events20:17:550
381988699257111,2557cyclictest3919023-21kworker/3:0+events00:23:003
381987699257111,2556cyclictest3857366-21kworker/0:0+events21:06:110
381988699257012,2554cyclictest3884880-21kworker/3:1+events22:32:293
381988699256911,2554cyclictest3905574-21kworker/3:1+events23:56:233
381987699256912,2553cyclictest3916256-21kworker/0:1+events00:06:580
381987699256812,2552cyclictest3851177-21kworker/0:1+events20:44:140
381988699256712,2551cyclictest3876651-21kworker/3:0+events22:15:183
38198869925669,2553cyclictest3879864-21kworker/3:2+events22:24:523
38198869925669,2553cyclictest3879864-21kworker/3:2+events22:24:513
381987699256611,2552cyclictest3857366-21kworker/0:0+events21:14:040
381988699256310,2549cyclictest3830150-21kworker/3:0+events19:42:183
381987699256312,2547cyclictest3886528-21kworker/0:3+events22:42:120
381988699256212,2546cyclictest3879864-21kworker/3:2+events22:29:503
381987699256112,2547cyclictest3918389-21kworker/0:0+events00:35:020
381988699255812,2543cyclictest3896133-21kworker/3:2+events23:14:233
381988699255512,2539cyclictest3808386-21kworker/3:0+events19:20:573
381987699255512,2539cyclictest3849577-21kworker/0:2+events21:01:150
381988699255411,2539cyclictest3865514-21kworker/3:2+events21:29:153
381987699255412,2538cyclictest3828198-21kworker/0:1+events19:38:040
381988699255311,2538cyclictest3867124-21kworker/3:0+events21:49:013
381988699255311,2538cyclictest3840088-21kworker/3:0+events20:22:333
381988399255114,2533cyclictest3875206-21kworker/2:0+events21:58:282
381988699255012,2534cyclictest3876651-21kworker/3:0+events22:11:303
381988699254910,2535cyclictest3890924-21kworker/3:2+events22:49:213
381988699254810,2534cyclictest3830150-21kworker/3:0+events19:59:413
381988199254812,2532cyclictest3904112-21kworker/1:0+events23:30:241
381988699254710,2533cyclictest3868733-21kworker/3:2+events21:43:203
381987699254712,2532cyclictest3819345-21kworker/0:0+events19:25:570
38198869925459,2532cyclictest3921763-21kworker/3:1+events00:27:053
381988699254512,2529cyclictest3867124-21kworker/3:0+events21:34:373
381988699254412,2528cyclictest3896133-21kworker/3:2+events23:18:143
381987699254411,2529cyclictest3863859-21kworker/0:1+events21:45:350
381988699254212,2526cyclictest3915580-21kworker/3:0+events00:09:373
381988699254210,2528cyclictest3913860-21kworker/3:2+events00:01:393
381987699254212,2527cyclictest3880019-21kworker/0:1+events22:14:540
381988699253810,2524cyclictest3855827-21kworker/3:2+events20:58:593
381988699253712,2522cyclictest3873312-21kworker/3:2+events22:05:223
381987699253212,2516cyclictest3831944-21kworker/0:1+events19:44:330
381988699253112,2515cyclictest3824869-21kworker/3:1+events19:25:343
381987699252912,2513cyclictest3885153-21kworker/0:2+events22:33:110
381988199252712,2511cyclictest3902389-21kworker/1:1+events23:43:031
38198769925278,2516cyclictest3831944-21kworker/0:1+events19:49:110
38198869925218,2509cyclictest3848122-21kworker/3:0+events20:41:353
381988199252012,2505cyclictest3835392-21kworker/1:0+events19:54:491
381987699251710,2504cyclictest3921686-21kworker/0:2+events00:23:220
381988699251312,2497cyclictest3854229-21kworker/3:0+events21:02:023
381988199251112,2494cyclictest3876773-21kworker/1:2+events22:20:161
381988199251112,2494cyclictest3876773-21kworker/1:2+events22:20:151
381988699251012,2496cyclictest3889330-21kworker/3:1+events22:50:313
38198839925087,2498cyclictest3889566-21kworker/2:1+events22:58:282
381988399250813,2492cyclictest3876953-21kworker/2:1+events22:20:372
381988399250813,2492cyclictest3876953-21kworker/2:1+events22:20:372
381988399250810,2494cyclictest3852629-21kworker/2:1+events20:54:032
381987699250413,2487cyclictest3835456-21kworker/0:0+events20:06:580
381988699250312,2487cyclictest3887279-21kworker/3:0+events22:42:363
38198819925027,2492cyclictest3876773-21kworker/1:2+events22:08:271
381988399250012,2484cyclictest3835273-21kworker/2:2+events20:03:302
38198819925000,2496cyclictest3902389-21kworker/1:1+events23:29:141
381987699249812,2483cyclictest3844772-21kworker/0:0+events20:33:090
381987699249812,2483cyclictest3844772-21kworker/0:0+events20:33:080
381988199249611,2481cyclictest3905722-21kworker/1:2+events23:38:251
381987699249612,2480cyclictest3892529-21kworker/0:1+events23:02:590
381988199249512,2480cyclictest3920099-21kworker/1:1+events00:21:071
381987699249512,2481cyclictest3826591-21kworker/0:2+events19:30:540
381988399249412,2479cyclictest3828343-21kworker/2:2+events19:43:052
381988399249410,2480cyclictest3846491-21kworker/2:0+events20:30:292
381988399249410,2480cyclictest3846491-21kworker/2:0+events20:30:292
381987699249412,2480cyclictest3900993-21kworker/0:0+events23:30:010
38198869924933,2486cyclictest3905574-21kworker/3:1+events23:41:323
381988699249312,2478cyclictest3828169-21kworker/3:1+events19:39:373
381987699249312,2478cyclictest3905449-21kworker/0:1+events23:38:040
381988699249212,2476cyclictest3855827-21kworker/3:2+events21:07:193
381988699249210,2478cyclictest3887279-21kworker/3:0+events22:38:503
381988199249112,2475cyclictest3865397-21kworker/1:1+events21:49:481
38198769924919,2478cyclictest3863859-21kworker/0:1+events21:51:150
381987699249112,2476cyclictest3907089-21kworker/0:0+events23:42:190
381987699249112,2475cyclictest3876805-21kworker/0:2+events22:06:330
381988699248910,2475cyclictest3854229-21kworker/3:0+events21:17:083
381987699248912,2473cyclictest3863859-21kworker/0:1+events21:56:580
381988199248811,2473cyclictest3884730-21kworker/1:0+events22:38:021
381987699248812,2474cyclictest3844772-21kworker/0:0+events20:35:030
381987699248712,2472cyclictest3907089-21kworker/0:0+events23:50:410
381988199248611,2472cyclictest3865397-21kworker/1:1+events21:59:381
381987699248611,2471cyclictest3914024-21kworker/0:3+events00:13:030
381987699248610,2472cyclictest3903829-21kworker/0:2+events23:25:510
381987699248512,2470cyclictest3911776-21kworker/0:2+events23:55:590
381988699248412,2469cyclictest3905805-21kworker/3:3+events23:36:103
381988699248412,2469cyclictest3818097-21kworker/3:2+events19:19:473
381987699248412,2469cyclictest3899363-21kworker/0:1+events23:22:440
381988699248312,2468cyclictest3876651-21kworker/3:0+events22:04:593
381988699248212,2466cyclictest3905574-21kworker/3:1+events23:47:153
381988399248211,2467cyclictest3844652-21kworker/2:1+events20:28:592
381988699248111,2468cyclictest3896133-21kworker/3:2+events23:32:433
381987699247812,2462cyclictest3920020-21kworker/0:1+events00:19:120
381987699247712,2461cyclictest3819345-21kworker/0:0+events19:22:310
381988199247412,2459cyclictest3826741-21kworker/1:2+events19:35:271
381988399247213,2455cyclictest3887929-21kworker/2:0+events23:01:542
381988399246812,2454cyclictest3920315-21kworker/2:1+events00:31:172
381988699246712,2452cyclictest3919023-21kworker/3:0+events00:30:543
381988699246312,2447cyclictest3925127-21kworker/3:1+events00:38:513
38198819924618,2449cyclictest3925018-21kworker/1:0+events00:35:231
381987699246010,2447cyclictest3897736-21kworker/0:2+events23:15:320
381988399245913,2443cyclictest3909213-21kworker/2:2+events00:15:452
381988399245912,2443cyclictest3907405-21kworker/2:0+events23:50:182
381987699245112,2436cyclictest3897736-21kworker/0:2+events23:12:070
381988399244912,2433cyclictest3926409-21kworker/2:0+events00:38:272
381988399244511,2430cyclictest3873285-21kworker/2:2+events21:52:462
381988199244512,2429cyclictest3835392-21kworker/1:0+events19:58:111
381988199244512,2429cyclictest3833368-21kworker/1:1+events20:09:381
381988399243614,2419cyclictest3826621-21kworker/2:1+events19:32:262
381987699243312,2418cyclictest3890943-21kworker/0:0+events22:48:140
381988399242211,2407cyclictest3923151-21kworker/2:0+events00:26:432
381988399242011,2406cyclictest3833398-21kworker/2:1+events20:07:222
381988399241613,2399cyclictest3868765-21kworker/2:1+events21:44:532
381988199241612,2401cyclictest3916824-21kworker/1:2+events00:13:261
381988199241612,2401cyclictest3850996-21kworker/1:0+events20:50:151
381988399241310,2400cyclictest3905419-21kworker/2:1+events23:31:332
381987699241312,2397cyclictest3886528-21kworker/0:3+events22:35:480
381988399241212,2397cyclictest3920315-21kworker/2:1+events00:20:442
381988399241212,2397cyclictest3835273-21kworker/2:2+events20:13:222
381988399241212,2396cyclictest3907405-21kworker/2:0+events23:43:262
381988399241112,2397cyclictest3825022-21kworker/2:0+events19:35:042
381988399241112,2395cyclictest3860629-21kworker/2:0+events21:28:522
381988399241112,2395cyclictest3840119-21kworker/2:0+events20:18:192
38198819924109,2397cyclictest3890954-21kworker/1:2+events22:51:181
381988399240912,2394cyclictest3835273-21kworker/2:2+events20:20:392
381988399240912,2393cyclictest3825022-21kworker/2:0+events19:23:392
38198839924089,2396cyclictest3823268-21kworker/2:1+events19:18:402
38198819924089,2397cyclictest3892740-21kworker/1:1+events23:10:111
381988399240712,2392cyclictest3852629-21kworker/2:1+events21:16:452
381988399240612,2391cyclictest3881405-21kworker/2:0+events22:25:382
381988399240611,2391cyclictest3833398-21kworker/2:1+events19:58:562
381988199240612,2391cyclictest3823539-21kworker/1:0+events19:33:351
381988199240512,2389cyclictest3843141-21kworker/1:2+events20:38:301
381988199240212,2387cyclictest3916824-21kworker/1:2+events00:07:431
38198839924019,2388cyclictest3900914-21kworker/2:0+events23:21:582
381988199240112,2385cyclictest3880098-21kworker/1:0+events22:18:421
38198819923998,2387cyclictest3898103-21kworker/1:2+events23:18:371
381988199239912,2384cyclictest3833368-21kworker/1:1+events20:19:301
38198819923976,2387cyclictest3865397-21kworker/1:1+events21:41:081
381988199239711,2382cyclictest3859055-21kworker/1:0+events21:14:261
381988199239612,2380cyclictest3859055-21kworker/1:0+events21:09:571
381988199239612,2380cyclictest3831734-21kworker/1:0+events19:42:401
381988199239312,2377cyclictest3905722-21kworker/1:2+events23:46:511
381987699239211,2378cyclictest3831944-21kworker/0:1+events20:00:470
381988399238512,2371cyclictest3875206-21kworker/2:0+events22:00:012
381988399238312,2369cyclictest3857163-21kworker/2:0+events21:05:052
381987699238211,2368cyclictest3833561-21kworker/0:2+events19:52:110
38198819923818,2369cyclictest3884730-21kworker/1:0+events22:46:191
381987699238012,2364cyclictest3918389-21kworker/0:0+events00:32:250
381988199237512,2356cyclictest3918489-21kworker/1:0+events00:16:091
381988199237211,2357cyclictest3865397-21kworker/1:1+events21:37:421
381988399236612,2350cyclictest3854405-21kworker/2:2+events20:57:262
381988399236412,2348cyclictest3876953-21kworker/2:1+events22:12:382
381988199236211,2347cyclictest3884730-21kworker/1:0+events22:58:521
381988399236111,2347cyclictest3887929-21kworker/2:0+events22:48:372
381988399236110,2347cyclictest3899217-21kworker/2:2+events23:29:392
381988399236011,2345cyclictest3867155-21kworker/2:2+events21:39:372
381988399235212,2338cyclictest3883037-21kworker/2:2+events22:32:072
381988399235212,2337cyclictest3913915-21kworker/2:0+events00:04:422
381988399235012,2334cyclictest3844652-21kworker/2:1+events20:36:552
381988399234912,2334cyclictest3896017-21kworker/2:2+events23:05:402
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381988399234311,2329cyclictest3911997-21kworker/2:1+events23:56:442
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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