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2026-05-25 - 05:14

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 376 highest latencies:
System rackfslot7s.osadl.org (updated Mon May 25, 2026 00:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
347456599420419,4180cyclictest3482793-21kworker/2:2+events20:20:212
347455999356816,3546cyclictest3480986-21kworker/0:1+events19:50:130
347455999315013,3131cyclictest3511899-21kworker/0:2+events21:05:200
347456299304113,3023cyclictest3553100-21kworker/1:2+events23:30:131
347456599303612,3019cyclictest3505269-21kworker/2:0+events20:45:122
347456599302214,3003cyclictest3511660-21kworker/2:2+events21:15:142
347456599301915,3001cyclictest3542141-21kworker/2:2+events22:50:032
347456599299315,2974cyclictest3513596-21kworker/2:3+events21:29:172
347456999296615,2947cyclictest3532413-21kworker/3:0+events22:10:173
347455999293314,2915cyclictest3536961-21kworker/0:2+events22:30:170
347456599291015,2893cyclictest3482793-21kworker/2:2+events19:35:222
347455999290514,2886cyclictest3503737-21kworker/0:1+events20:40:160
347455999289714,2878cyclictest3564156-21kworker/0:0+events23:59:480
347456999285414,2835cyclictest3469281-21kworker/3:0+events19:20:113
347455999282311,2807cyclictest3482879-21kworker/0:2+events19:45:130
347456999281813,2801cyclictest3550165-21kworker/3:1+events23:15:453
347456599281713,2800cyclictest3567271-21kworker/2:1+events23:58:382
34745629928106,2800cyclictest3488924-21kworker/1:0+events20:07:311
34745629928087,2797cyclictest3501928-21kworker/1:0+events21:08:181
347456599280713,2791cyclictest3526041-21kworker/2:0+events21:55:532
347456299280513,2787cyclictest3495486-21kworker/1:0+events20:19:351
347456599280313,2786cyclictest3520382-21kworker/2:0+events21:34:122
347456599280213,2785cyclictest3509569-21kworker/2:0+events20:59:382
347456299280113,2784cyclictest3514859-21kworker/1:2+events21:42:081
347456599279813,2781cyclictest3497450-21kworker/2:1+events20:28:112
347456599279613,2779cyclictest3551618-21kworker/2:0+events23:23:312
34745699927930,2789cyclictest3538562-21kworker/3:0+events22:32:123
347455999279213,2775cyclictest3543516-21kworker/0:1+events22:55:000
347456599278713,2770cyclictest3477695-21kworker/2:1+events19:41:262
347456599278613,2769cyclictest3548369-21kworker/2:1+events23:04:012
347456599278213,2767cyclictest3573825-21kworker/2:2+events00:20:032
347456599278013,2763cyclictest3559538-21kworker/2:2+events23:35:532
347456599278013,2763cyclictest3533775-21kworker/2:2+events22:17:272
347455999276013,2743cyclictest3508613-21kworker/0:1+events21:04:110
347455999274913,2734cyclictest3529219-21kworker/0:0+events22:00:050
347456599273413,2717cyclictest3559538-21kworker/2:2+events23:44:592
347455999272213,2705cyclictest3482879-21kworker/0:2+events20:21:460
347455999272213,2705cyclictest3480986-21kworker/0:1+events19:37:590
34745629927219,2709cyclictest3514859-21kworker/1:2+events21:20:331
34745599927219,2709cyclictest3518157-21kworker/0:2+events21:30:010
347456299272013,2703cyclictest3484422-21kworker/1:1+events19:40:171
347456999271713,2700cyclictest3469281-21kworker/3:0+events19:34:353
347455999271612,2700cyclictest3519875-21kworker/0:1+events21:31:560
347456599271312,2699cyclictest3500356-21kworker/2:0+events20:36:062
347456599271312,2699cyclictest3500356-21kworker/2:0+events20:36:062
347455999271113,2694cyclictest3482879-21kworker/0:2+events20:14:160
347455999271013,2693cyclictest3490734-21kworker/0:1+events20:02:370
347456299270910,2695cyclictest3492289-21kworker/1:1+events20:12:451
347455999270913,2692cyclictest3479354-21kworker/0:0+events19:28:320
347455999270911,2694cyclictest3564156-21kworker/0:0+events23:48:020
347455999270813,2691cyclictest3548309-21kworker/0:0+events23:04:440
347456299270712,2691cyclictest3497148-21kworker/1:1+events20:29:211
347456599270415,2686cyclictest3559538-21kworker/2:2+events23:46:312
347456599270313,2687cyclictest3573825-21kworker/2:2+events00:30:212
347456299269812,2683cyclictest3535697-21kworker/1:0+events22:23:271
347456299268512,2669cyclictest3514859-21kworker/1:2+events21:17:331
347456999268411,2669cyclictest3489041-21kworker/3:1+events20:04:293
34745699926828,2670cyclictest3514889-21kworker/3:2+events21:12:543
347456599266913,2652cyclictest3537113-21kworker/2:0+events22:25:442
347456599266912,2653cyclictest3542141-21kworker/2:2+events22:41:182
347456599265813,2641cyclictest3482793-21kworker/2:2+events19:51:192
347456299265511,2640cyclictest3566292-21kworker/1:0+events00:03:381
347456299265511,2640cyclictest3525889-21kworker/1:0+events21:54:441
347455999265112,2635cyclictest3551556-21kworker/0:2+events23:11:110
347456599264810,2634cyclictest3573825-21kworker/2:2+events00:39:052
347455999264613,2629cyclictest3527550-21kworker/0:1+events21:56:370
347456299264512,2629cyclictest3548579-21kworker/1:2+events23:00:141
34745659926433,2636cyclictest3543681-21kworker/2:3+events23:10:502
347456299264113,2626cyclictest3501928-21kworker/1:0+events20:55:031
34745629926407,2629cyclictest3503619-21kworker/1:1+events20:47:501
347456299263813,2621cyclictest3551468-21kworker/1:0+events23:06:381
347455999263412,2618cyclictest3532531-21kworker/0:0+events22:18:120
347455999263312,2617cyclictest3490734-21kworker/0:1+events19:59:140
34745699926316,2621cyclictest3522961-21kworker/3:2+events21:58:333
347456999263113,2614cyclictest3503496-21kworker/3:0+events20:37:143
347456999263113,2614cyclictest3503496-21kworker/3:0+events20:37:143
347456999263012,2614cyclictest3522961-21kworker/3:2+events21:51:153
347456999262913,2612cyclictest3519635-21kworker/3:1+events21:36:283
347456999262913,2612cyclictest3489041-21kworker/3:1+events19:57:223
347456999262912,2613cyclictest3522961-21kworker/3:2+events22:06:323
347456999262911,2614cyclictest3497060-21kworker/3:0+events20:28:583
347456999262813,2611cyclictest3564336-21kworker/3:1+events23:49:573
347456999262613,2609cyclictest3543606-21kworker/3:1+events22:54:373
347456999262613,2609cyclictest3514889-21kworker/3:2+events21:21:433
347456299262613,2609cyclictest3499293-21kworker/1:2+events20:31:351
347456299261913,2602cyclictest3488924-21kworker/1:0+events19:50:571
347456299261813,2601cyclictest3561141-21kworker/1:0+events23:44:371
347456299261711,2602cyclictest3553100-21kworker/1:2+events23:16:291
347456299261613,2599cyclictest3573701-21kworker/1:2+events00:26:561
34745629926158,2603cyclictest3578418-21kworker/1:0+events00:36:271
347456299261513,2598cyclictest3497148-21kworker/1:1+events20:23:401
347456299261513,2598cyclictest3482701-21kworker/1:0+events19:32:431
347455999260813,2591cyclictest3570865-21kworker/0:3+events00:13:540
347456999260513,2588cyclictest3487347-21kworker/3:2+events19:46:433
347455999260513,2588cyclictest3482879-21kworker/0:2+events19:41:480
34745629926026,2593cyclictest3501928-21kworker/1:0+events20:38:011
34745629926026,2593cyclictest3501928-21kworker/1:0+events20:38:011
347456599259613,2579cyclictest3471199-21kworker/2:0+events19:32:192
347456999259113,2574cyclictest3482910-21kworker/3:1+events19:36:073
347456599259112,2575cyclictest3570577-21kworker/2:0+events00:07:492
347456299259113,2574cyclictest3488924-21kworker/1:0+events19:56:591
347456599258411,2569cyclictest3524435-21kworker/2:1+events21:47:042
347456299258212,2566cyclictest3501928-21kworker/1:0+events20:52:021
34745629925820,2579cyclictest3540505-21kworker/1:3+events22:36:441
347456999258112,2565cyclictest3489041-21kworker/3:1+events20:11:153
34745629925816,2572cyclictest3535697-21kworker/1:0+events22:28:041
34745629925806,2570cyclictest3546981-21kworker/1:1+events22:57:571
347456299258012,2564cyclictest3573701-21kworker/1:2+events00:34:321
347456599257912,2563cyclictest3533775-21kworker/2:2+events22:21:322
347456299257912,2563cyclictest3546981-21kworker/1:1+events23:26:541
347456599257812,2562cyclictest3482793-21kworker/2:2+events19:47:542
34745629925786,2568cyclictest3566292-21kworker/1:0+events00:19:401
347456299257712,2561cyclictest3484422-21kworker/1:1+events19:48:171
347456599257612,2561cyclictest3562881-21kworker/2:0+events23:51:272
347456299257612,2562cyclictest3564440-21kworker/1:2+events23:52:591
347456599257512,2559cyclictest3543681-21kworker/2:3+events22:48:532
347456299257512,2561cyclictest3570059-21kworker/1:1+events00:10:051
347456299257512,2559cyclictest3564440-21kworker/1:2+events23:57:081
347456299257412,2559cyclictest3545057-21kworker/1:0+events22:54:141
347456599257312,2557cyclictest3551618-21kworker/2:0+events23:29:062
347456599257310,2559cyclictest3553339-21kworker/2:1+events23:19:292
347456299257312,2558cyclictest3479206-21kworker/1:0+events19:24:211
347456299257312,2557cyclictest3518129-21kworker/1:0+events21:25:511
347456999257212,2556cyclictest3497060-21kworker/3:0+events20:24:043
347456299257010,2557cyclictest3530870-21kworker/1:1+events22:11:481
347456299256912,2555cyclictest3525889-21kworker/1:0+events22:05:451
347456299256811,2553cyclictest3545057-21kworker/1:0+events22:49:151
347455999256812,2552cyclictest3522809-21kworker/0:0+events21:40:590
347456599256712,2551cyclictest3501978-21kworker/2:2+events20:51:402
347456599256612,2550cyclictest3509569-21kworker/2:0+events21:01:072
347456599256612,2550cyclictest3490848-21kworker/2:1+events20:09:222
347456299256612,2550cyclictest3534039-21kworker/1:2+events22:16:191
347456299256312,2547cyclictest3538625-21kworker/1:1+events22:33:201
347456599255512,2539cyclictest3577057-21kworker/2:1+events00:29:362
347456599255512,2539cyclictest3567271-21kworker/2:1+events00:03:592
347456999255211,2537cyclictest3561049-21kworker/3:1+events23:37:493
347456599255210,2538cyclictest3520382-21kworker/2:0+events21:35:422
347456599255112,2535cyclictest3531229-21kworker/2:1+events22:10:402
347455999255012,2536cyclictest3556490-21kworker/0:2+events23:36:400
347456999254813,2531cyclictest3540226-21kworker/3:2+events22:49:383
347456999254810,2534cyclictest3505297-21kworker/3:1+events20:44:493
347456599254811,2533cyclictest3511660-21kworker/2:2+events21:14:052
347456299254814,2531cyclictest3566292-21kworker/1:0+events00:09:191
347456599254712,2533cyclictest3538750-21kworker/2:2+events22:31:502
347456599254712,2533cyclictest3503647-21kworker/2:1+events20:41:492
347456299254312,2527cyclictest3488924-21kworker/1:0+events20:04:511
347456599254112,2525cyclictest3559538-21kworker/2:2+events00:11:382
34745599925418,2529cyclictest3482879-21kworker/0:2+events20:18:500
347456299253312,2517cyclictest3507131-21kworker/1:2+events21:04:341
347456299251812,2503cyclictest3514859-21kworker/1:2+events21:31:321
347456999251612,2501cyclictest3575391-21kworker/3:2+events00:29:573
34745699925126,2502cyclictest3551796-21kworker/3:2+events23:14:583
347456299251012,2494cyclictest3525889-21kworker/1:0+events22:00:531
347456599250912,2494cyclictest3531229-21kworker/2:1+events22:38:162
347456599250512,2489cyclictest3543681-21kworker/2:3+events23:07:472
347456599250512,2489cyclictest3511660-21kworker/2:2+events21:23:352
347456299250411,2489cyclictest3561141-21kworker/1:0+events23:47:171
347456599250310,2489cyclictest3471199-21kworker/2:0+events19:21:422
347456999250212,2486cyclictest3565939-21kworker/3:2+events00:11:153
347456999250113,2484cyclictest3559417-21kworker/3:0+events23:33:153
34745599925016,2492cyclictest3553223-21kworker/0:1+events23:16:080
347456299249912,2483cyclictest3546981-21kworker/1:1+events23:11:351
347456999249812,2483cyclictest3540226-21kworker/3:2+events22:39:013
347456599249812,2483cyclictest3522694-21kworker/2:2+events21:52:252
347455999249815,2479cyclictest3482879-21kworker/0:2+events20:07:070
347456999249712,2481cyclictest3575391-21kworker/3:2+events00:24:143
347456999249612,2480cyclictest3559417-21kworker/3:0+events23:58:173
347456999249412,2478cyclictest3508124-21kworker/3:2+events20:52:233
34745699924936,2484cyclictest3495307-21kworker/3:2+events20:18:273
347456999249312,2478cyclictest3573683-21kworker/3:1+events00:30:423
347456999249312,2477cyclictest3575391-21kworker/3:2+events00:37:363
347456999249312,2477cyclictest3540226-21kworker/3:2+events22:44:453
347456299249311,2478cyclictest3513229-21kworker/1:1+events21:10:571
347456599249212,2476cyclictest3490848-21kworker/2:1+events20:00:442
347456299249112,2475cyclictest3573701-21kworker/1:2+events00:20:251
347456299249112,2475cyclictest3482701-21kworker/1:0+events19:36:511
347455999249012,2474cyclictest3498788-21kworker/0:1+events20:28:350
347456299248912,2473cyclictest3553100-21kworker/1:2+events23:23:541
347456299248911,2475cyclictest3553100-21kworker/1:2+events23:35:331
347455999248912,2474cyclictest3538594-21kworker/0:1+events22:27:180
347455999248911,2474cyclictest3511899-21kworker/0:2+events21:13:410
347456599248811,2474cyclictest3546742-21kworker/2:0+events22:55:212
347456599248811,2473cyclictest3529281-21kworker/2:2+events22:02:422
347456599248712,2471cyclictest3553339-21kworker/2:1+events23:30:352
347456299248712,2471cyclictest3540317-21kworker/1:2+events22:42:271
347455999248712,2471cyclictest3513495-21kworker/0:0+events21:17:560
347455999248712,2471cyclictest3475682-21kworker/0:2+events19:19:480
347456599248611,2471cyclictest3482793-21kworker/2:2+events20:11:382
347455999248612,2471cyclictest3573761-21kworker/0:0+events00:19:160
347455999248612,2470cyclictest3541828-21kworker/0:0+events22:43:350
347455999248511,2470cyclictest3554877-21kworker/0:0+events23:22:040
347455999248510,2471cyclictest3479354-21kworker/0:0+events19:23:350
347456599248411,2470cyclictest3526041-21kworker/2:0+events22:09:132
347456599248410,2470cyclictest3522694-21kworker/2:2+events21:42:322
347455999248411,2470cyclictest3532531-21kworker/0:0+events22:11:030
347455999248312,2467cyclictest3536961-21kworker/0:2+events22:23:040
347456599248212,2467cyclictest3477695-21kworker/2:1+events19:18:392
347455999248210,2468cyclictest3519875-21kworker/0:1+events21:37:120
347456299248112,2467cyclictest3503619-21kworker/1:1+events20:41:261
347455999248112,2465cyclictest3553223-21kworker/0:1+events23:26:080
34745659924809,2468cyclictest3513287-21kworker/2:1+events21:07:312
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347455999248012,2464cyclictest3536961-21kworker/0:2+events22:39:240
347455999247912,2464cyclictest3522809-21kworker/0:0+events21:48:150
347455999247912,2463cyclictest3575418-21kworker/0:1+events00:23:510
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347455999247812,2463cyclictest3567419-21kworker/0:1+events00:08:330
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34745599924719,2460cyclictest3500508-21kworker/0:0+events20:30:070
347455999247012,2454cyclictest3556490-21kworker/0:2+events23:31:460
347456999246712,2452cyclictest3565939-21kworker/3:2+events00:00:343
347456599246711,2453cyclictest3495338-21kworker/2:0+events20:15:462
347455999246310,2449cyclictest3506919-21kworker/0:2+events20:52:450
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347456299246011,2446cyclictest3514859-21kworker/1:2+events21:45:561
34745599924558,2443cyclictest3500508-21kworker/0:0+events20:48:370
347455999245312,2437cyclictest3524582-21kworker/0:2+events21:54:200
347456599244712,2432cyclictest3477695-21kworker/2:1+events19:27:242
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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