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2026-04-19 - 10:09

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 Sun Apr 19, 2026 00:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
313098699330114,3281cyclictest3148356-21kworker/0:0+events20:15:160
313099799313312,3117cyclictest3225401-21kworker/3:1+events00:05:203
313099599301815,2997cyclictest3215857-21kworker/2:1+events23:35:152
313098699292713,2909cyclictest3198185-21kworker/0:2+events22:45:010
313099799284913,2832cyclictest3153321-21kworker/3:2+events20:20:143
313099199284813,2831cyclictest3228583-21kworker/1:1+events00:15:171
313099799282814,2812cyclictest3207977-21kworker/3:2+events23:25:193
31309959928217,2808cyclictest3217459-21kworker/2:0+events23:40:122
31309959928217,2808cyclictest3217459-21kworker/2:0+events23:40:112
313098699280313,2786cyclictest3207765-21kworker/0:2+events23:13:360
313099599278311,2768cyclictest3204364-21kworker/2:1+events23:00:172
313099199277813,2762cyclictest3199674-21kworker/1:0+events22:55:171
313099799277211,2758cyclictest3175834-21kworker/3:0+events22:21:473
313099599276212,2745cyclictest3202759-21kworker/2:0+events23:05:162
313098699275913,2742cyclictest3230248-21kworker/0:2+events00:20:160
313099199275113,2734cyclictest3137398-21kworker/1:2+events19:35:151
313099599273413,2717cyclictest3174144-21kworker/2:2+events21:26:132
313099199272113,2706cyclictest3188288-21kworker/1:1+events22:47:171
313099599270811,2693cyclictest3137547-21kworker/2:0+events19:40:132
313098699270213,2686cyclictest3223956-21kworker/0:0+events00:00:210
313099799265910,2645cyclictest3199822-21kworker/3:1+events22:45:213
313098699262813,2611cyclictest3191730-21kworker/0:2+events22:33:170
313099799258112,2565cyclictest3186653-21kworker/3:1+events22:05:243
313098699258111,2566cyclictest3139003-21kworker/0:2+events19:42:300
313099599257812,2562cyclictest3220844-21kworker/2:1+events23:53:562
313099599255212,2536cyclictest3169297-21kworker/2:1+events21:12:232
313099799254812,2533cyclictest3175834-21kworker/3:0+events22:10:213
313099799253812,2522cyclictest3160075-21kworker/3:1+events20:46:533
313099599253812,2522cyclictest3161473-21kworker/2:0+events20:56:002
313099799253711,2522cyclictest3155065-21kworker/3:0+events20:26:433
31309959925378,2526cyclictest3179071-21kworker/2:1+events22:00:022
313099599253610,2522cyclictest3146989-21kworker/2:2+events19:59:452
313099799253412,2518cyclictest3160075-21kworker/3:1+events21:00:333
313099799253411,2519cyclictest3183569-21kworker/3:2+events21:54:433
313099799253211,2518cyclictest3130325-21kworker/3:2+events19:14:433
31309959925318,2519cyclictest3211152-21kworker/2:0+events23:29:062
313099599253010,2517cyclictest3193178-21kworker/2:2+events22:31:242
313099599252712,2511cyclictest3179071-21kworker/2:1+events21:52:222
313099799252511,2510cyclictest3150239-21kworker/3:1+events20:15:393
313099799252312,2508cyclictest3150239-21kworker/3:1+events20:10:423
31309979925228,2510cyclictest3145547-21kworker/3:3+events20:01:173
313099799251312,2497cyclictest3222537-21kworker/3:0+events23:56:153
31309959925077,2496cyclictest3201125-21kworker/2:2+events22:51:512
313099199250312,2488cyclictest3151805-21kworker/1:2+events20:28:591
313099799250212,2487cyclictest3228610-21kworker/3:1+events00:16:493
313099199250111,2486cyclictest3211062-21kworker/1:2+events23:23:491
313099199250111,2486cyclictest3211062-21kworker/1:2+events23:23:481
313099599249712,2482cyclictest3228696-21kworker/2:0+events00:16:272
31309919924949,2482cyclictest3199674-21kworker/1:0+events23:01:281
313098699249412,2479cyclictest3148356-21kworker/0:0+events20:21:230
313098699249212,2476cyclictest3142347-21kworker/0:1+events20:05:470
313099199249012,2473cyclictest3145474-21kworker/1:0+events20:01:381
313099199248912,2473cyclictest3164589-21kworker/1:2+events21:05:261
313099799248812,2472cyclictest3160075-21kworker/3:1+events20:58:393
313099799248811,2473cyclictest3205964-21kworker/3:1+events23:09:243
31309869924888,2476cyclictest3169478-21kworker/0:2+events21:34:570
31309869924885,2479cyclictest3169478-21kworker/0:2+events21:13:310
313098699248812,2472cyclictest3158338-21kworker/0:1+events20:35:510
313098699248810,2474cyclictest3153743-21kworker/0:2+events20:44:120
313099799248712,2472cyclictest3212627-21kworker/3:1+events23:31:243
313099199248712,2473cyclictest3199674-21kworker/1:0+events23:10:101
313098699248712,2471cyclictest3207765-21kworker/0:2+events23:16:350
313099599248612,2472cyclictest3146989-21kworker/2:2+events20:40:042
313099199248312,2467cyclictest3149201-21kworker/1:1+events20:08:021
313098699248312,2469cyclictest3139003-21kworker/0:2+events19:45:070
313098699248211,2468cyclictest3220747-21kworker/0:0+events23:51:170
31309919924813,2474cyclictest3193237-21kworker/1:2+events22:25:141
313099199247811,2463cyclictest3134136-21kworker/1:0+events19:24:391
313099199247712,2462cyclictest3188288-21kworker/1:1+events22:40:311
313098699247611,2461cyclictest3177109-21kworker/0:0+events21:39:520
31309919924729,2460cyclictest3211062-21kworker/1:2+events23:51:401
313099799247012,2455cyclictest3228610-21kworker/3:1+events00:14:053
313099199246912,2454cyclictest3137398-21kworker/1:2+events19:29:101
313099199246811,2453cyclictest3145474-21kworker/1:0+events20:11:271
313099599246512,2450cyclictest3231948-21kworker/2:1+events00:25:142
313098699246210,2448cyclictest3186923-21kworker/0:1+events22:17:370
313099199246112,2446cyclictest3179275-21kworker/1:2+events21:50:301
31309979924599,2446cyclictest3175834-21kworker/3:0+events22:18:013
313099799245612,2441cyclictest3230213-21kworker/3:2+events00:20:393
313099599245510,2441cyclictest3215857-21kworker/2:1+events23:32:342
313099199245512,2440cyclictest3159727-21kworker/1:2+events20:43:491
313099799245312,2437cyclictest3136011-21kworker/3:0+events19:32:383
313099199245312,2438cyclictest3134136-21kworker/1:0+events19:18:121
313098699245312,2438cyclictest3194996-21kworker/0:1+events22:35:340
313099799245212,2436cyclictest3215917-21kworker/3:0+events23:37:123
313099799245212,2436cyclictest3167875-21kworker/3:0+events21:16:383
313099799245211,2437cyclictest3228610-21kworker/3:1+events00:26:023
313099799245112,2436cyclictest3175834-21kworker/3:0+events22:25:373
313099799245112,2435cyclictest3175834-21kworker/3:0+events22:01:333
313099799245110,2437cyclictest3205964-21kworker/3:1+events23:14:193
313099599245112,2435cyclictest3233551-21kworker/2:0+events00:39:572
313099799245010,2437cyclictest3233756-21kworker/3:2+events00:36:513
313099599245011,2435cyclictest3161473-21kworker/2:0+events21:03:592
313098699245012,2434cyclictest3162835-21kworker/0:1+events20:56:440
313099799244912,2433cyclictest3170753-21kworker/3:2+events21:13:553
313099799244812,2433cyclictest3199822-21kworker/3:1+events22:51:293
313099799244812,2432cyclictest3167875-21kworker/3:0+events21:06:143
313099599244812,2433cyclictest3186893-21kworker/2:0+events22:14:582
313099599244811,2434cyclictest3175746-21kworker/2:0+events21:40:372
313099599244811,2434cyclictest3175746-21kworker/2:0+events21:40:362
313099599244811,2433cyclictest3167639-21kworker/2:2+events21:16:132
313099599244810,2435cyclictest3145268-21kworker/2:0+events20:06:312
313099799244712,2431cyclictest3183569-21kworker/3:2+events21:57:253
31309959924478,2436cyclictest3169297-21kworker/2:1+events21:08:542
313099599244712,2432cyclictest3220844-21kworker/2:1+events00:07:132
313099599244712,2431cyclictest3161473-21kworker/2:0+events20:51:012
313099599244712,2431cyclictest3150773-21kworker/2:1+events20:11:052
313099799244612,2431cyclictest3219240-21kworker/3:1+events23:49:223
313099799244611,2432cyclictest3210878-21kworker/3:0+events23:18:523
313099599244612,2431cyclictest3153590-21kworker/2:0+events20:19:512
313099599244611,2431cyclictest3222442-21kworker/2:0+events00:03:472
313099599244611,2431cyclictest3137547-21kworker/2:0+events19:30:422
313099799244512,2430cyclictest3175834-21kworker/3:0+events21:40:593
313099799244512,2430cyclictest3175834-21kworker/3:0+events21:40:593
313099599244511,2431cyclictest3146989-21kworker/2:2+events20:37:212
313099799244411,2429cyclictest3198023-21kworker/3:0+events22:37:513
313099599244412,2428cyclictest3207916-21kworker/2:1+events23:10:322
313099799244313,2427cyclictest3196330-21kworker/3:2+events22:32:553
313099799244312,2428cyclictest3136011-21kworker/3:0+events19:28:473
313099599244311,2428cyclictest3233551-21kworker/2:0+events00:34:182
313099599244111,2426cyclictest3130308-21kworker/2:0+events19:20:262
313099199244112,2423cyclictest3185058-21kworker/1:1+events21:58:091
313099799244012,2424cyclictest3150239-21kworker/3:1+events20:32:263
313099599243212,2416cyclictest3179071-21kworker/2:1+events21:58:542
313099199243111,2417cyclictest3162981-21kworker/1:1+events20:57:081
313099599243010,2417cyclictest3188497-21kworker/2:1+events22:20:392
313099199243012,2416cyclictest3155217-21kworker/1:1+events20:35:061
31309959924294,2422cyclictest3158157-21kworker/2:0+events20:33:122
313099199242911,2414cyclictest3145474-21kworker/1:0+events20:21:001
313099199242512,2409cyclictest3186683-21kworker/1:2+events22:03:031
313099799242312,2407cyclictest3220904-21kworker/3:2+events00:00:443
313099799242311,2408cyclictest3196330-21kworker/3:2+events22:58:213
313099199242312,2407cyclictest3162981-21kworker/1:1+events20:49:081
313098699242312,2407cyclictest3198185-21kworker/0:2+events22:54:070
313098699242110,2408cyclictest3164495-21kworker/0:2+events21:00:120
313098699241912,2404cyclictest3227409-21kworker/0:0+events00:12:560
313098699241812,2403cyclictest3169478-21kworker/0:2+events21:18:550
313099599241712,2401cyclictest3198204-21kworker/2:0+events22:41:152
313099199241410,2400cyclictest3220778-21kworker/1:1+events23:57:191
313099199241212,2397cyclictest3162981-21kworker/1:1+events21:00:581
313099199241012,2395cyclictest3183396-21kworker/1:0+events22:11:291
313099199241012,2394cyclictest3231978-21kworker/1:0+events00:30:561
313099199241011,2395cyclictest3183396-21kworker/1:0+events22:16:271
313099199241010,2397cyclictest3226974-21kworker/1:0+events00:11:051
313098699241012,2395cyclictest3183634-21kworker/0:2+events21:57:010
313099199240711,2392cyclictest3162981-21kworker/1:1+events21:26:371
313098699240712,2392cyclictest3235207-21kworker/0:0+events00:38:030
313098699240712,2391cyclictest3198185-21kworker/0:2+events22:45:460
313099199240612,2390cyclictest3224101-21kworker/1:2+events00:08:231
313098699240611,2391cyclictest3204273-21kworker/0:1+events22:56:490
313099199240512,2390cyclictest3198053-21kworker/1:2+events22:38:351
313099199240512,2389cyclictest3188288-21kworker/1:1+events22:31:461
313099199240512,2389cyclictest3177259-21kworker/1:1+events21:45:341
313099199240412,2389cyclictest3145474-21kworker/1:0+events20:17:331
313098699240412,2388cyclictest3225672-21kworker/0:2+events00:08:460
313098699240411,2390cyclictest3142347-21kworker/0:1+events19:57:510
313098699240410,2391cyclictest3191730-21kworker/0:2+events22:28:430
31309869924039,2390cyclictest3231915-21kworker/0:0+events00:27:110
313098699240312,2389cyclictest3172782-21kworker/0:0+events21:25:010
313098699240312,2387cyclictest3186923-21kworker/0:1+events22:22:120
313098699240312,2387cyclictest3148356-21kworker/0:0+events20:28:360
313098699240310,2389cyclictest3189832-21kworker/0:0+events22:12:380
31309919924029,2389cyclictest3158067-21kworker/1:0+events20:31:171
313099199240210,2389cyclictest3188288-21kworker/1:1+events22:24:291
313098699240212,2386cyclictest3135791-21kworker/0:0+events19:28:230
313099199240112,2385cyclictest3233579-21kworker/1:2+events00:35:461
313098699240112,2385cyclictest3219087-21kworker/0:1+events23:44:450
313098699240112,2385cyclictest3219087-21kworker/0:1+events23:44:440
313098699240112,2385cyclictest3178715-21kworker/0:1+events21:44:050
313098699240112,2385cyclictest3178715-21kworker/0:1+events21:44:050
313099199240010,2387cyclictest3139420-21kworker/1:1+events19:43:141
313098699240011,2386cyclictest3167788-21kworker/0:1+events21:06:370
313098699239912,2384cyclictest3233520-21kworker/0:2+events00:32:490
313098699239912,2384cyclictest3139003-21kworker/0:2+events19:33:460
313098699239812,2383cyclictest3186923-21kworker/0:1+events22:06:320
31309869923979,2384cyclictest3148356-21kworker/0:0+events20:12:130
31309869923978,2386cyclictest3162835-21kworker/0:1+events20:46:280
313098699239710,2384cyclictest3185270-21kworker/0:0+events22:04:130
313099199239612,2381cyclictest3212687-21kworker/1:0+events23:28:451
313098699239012,2375cyclictest3164495-21kworker/0:2+events20:52:330
313099599238912,2374cyclictest3217459-21kworker/2:0+events23:45:322
313098699238911,2375cyclictest3142347-21kworker/0:1+events20:00:540
313099199238511,2370cyclictest3172420-21kworker/1:2+events21:24:411
313099199237011,2355cyclictest3177259-21kworker/1:1+events21:40:161
313099199237011,2355cyclictest3177259-21kworker/1:1+events21:40:151
31309959923649,2352cyclictest3193178-21kworker/2:2+events22:26:012
313099799235912,2344cyclictest3160075-21kworker/3:1+events20:42:423
313098699235812,2342cyclictest3209372-21kworker/0:0+events23:21:540
313098699235812,2342cyclictest3209372-21kworker/0:0+events23:21:540
313098699235610,2343cyclictest3153743-21kworker/0:2+events20:33:580
313098699235112,2336cyclictest3204273-21kworker/0:1+events23:09:010
313098699234810,2334cyclictest3169478-21kworker/0:2+events21:24:180
313099199234312,2327cyclictest3186683-21kworker/1:2+events22:05:481
313099199232712,2312cyclictest3162981-21kworker/1:1+events21:17:001
31309869923158,2303cyclictest3140636-21kworker/0:0+events19:39:500
313099199231411,2300cyclictest3162981-21kworker/1:1+events21:11:141
313099199230812,2293cyclictest3211062-21kworker/1:2+events23:47:501
313099799230211,2288cyclictest3130325-21kworker/3:2+events19:17:483
313098699229011,2276cyclictest3220747-21kworker/0:0+events23:48:130
313098699227210,2259cyclictest3130856-21kworker/0:3+events19:13:330
313098699226712,2252cyclictest3230248-21kworker/0:2+events00:19:070
313098699226412,2248cyclictest3214460-21kworker/0:0+events23:30:170
313099799225311,2238cyclictest3158316-21kworker/3:0+events20:38:083
31309959922518,2239cyclictest3220844-21kworker/2:1+events00:11:502
31309959922508,2239cyclictest3186893-21kworker/2:0+events22:06:112
313099599224911,2235cyclictest3153590-21kworker/2:0+events20:21:472
313099599224910,2236cyclictest3177391-21kworker/2:2+events21:38:422
313099599224811,2234cyclictest3196392-21kworker/2:1+events22:35:572
313099599224810,2235cyclictest3207916-21kworker/2:1+events23:19:382
313098699224311,2229cyclictest3134074-21kworker/0:1+events19:23:520
313099799223711,2222cyclictest3181972-21kworker/3:1+events21:48:153
313099599223611,2222cyclictest3202759-21kworker/2:0+events22:57:132
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313099799223110,2218cyclictest3228610-21kworker/3:1+events00:30:323
313099799223010,2217cyclictest3174052-21kworker/3:2+events21:23:083
313099599223010,2217cyclictest3169297-21kworker/2:1+events21:33:482
313099799222911,2215cyclictest3148375-21kworker/3:0+events20:09:563
313099799222811,2214cyclictest3142432-21kworker/3:1+events19:49:553
313099599222810,2215cyclictest3169297-21kworker/2:1+events21:23:312
31309959922279,2214cyclictest3207916-21kworker/2:1+events23:21:082
31309959922279,2214cyclictest3207916-21kworker/2:1+events23:21:082
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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