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2026-08-19 - 07:27

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 Aug 19, 2026 00:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
227194999406719,4042cyclictest2336597-21kworker/2:1+events22:30:212
227194699399719,3973cyclictest2281388-21kworker/1:1+events19:40:211
22719469929875,2977cyclictest2352148-21kworker/1:1+events23:20:111
227194399296415,2945cyclictest2296089-21kworker/0:1+events20:35:140
227194699294110,2927cyclictest2313808-21kworker/1:0+events21:30:181
227194399279913,2782cyclictest2309087-21kworker/0:2+events21:35:140
227194999279713,2780cyclictest2355555-21kworker/2:0+events23:30:012
227194999278812,2772cyclictest2328569-21kworker/2:0+events22:05:152
227195299276113,2743cyclictest2289289-21kworker/3:0+events20:05:183
227194999276113,2744cyclictest2284730-21kworker/2:1+events19:50:132
227194399274713,2730cyclictest2352478-21kworker/0:2+events23:23:350
227195299273813,2721cyclictest2283251-21kworker/3:0+events19:45:183
227194399273813,2723cyclictest2333428-21kworker/0:1+events22:25:030
227194699271312,2697cyclictest2284645-21kworker/1:2+events20:02:411
227195299271211,2697cyclictest2337932-21kworker/3:1+events22:34:073
227195299270313,2687cyclictest2362026-21kworker/3:0+events23:55:263
227194699269713,2680cyclictest2308993-21kworker/1:0+events21:12:511
227194699269313,2676cyclictest2330071-21kworker/1:2+events22:23:081
227194699269313,2676cyclictest2330071-21kworker/1:2+events22:23:081
227194399269013,2674cyclictest2325040-21kworker/0:2+events22:00:210
227194999267913,2664cyclictest2276668-21kworker/2:0+events19:25:132
227194699266812,2652cyclictest2292974-21kworker/1:2+events20:19:391
22719469926259,2612cyclictest2308993-21kworker/1:0+events21:09:261
227194999260512,2589cyclictest2341424-21kworker/2:2+events22:47:522
227195299259312,2577cyclictest2310630-21kworker/3:2+events21:26:553
227195299257713,2561cyclictest2356945-21kworker/3:0+events23:37:353
227194699257512,2559cyclictest2349594-21kworker/1:2+events23:13:201
227194399255511,2542cyclictest2287919-21kworker/0:2+events20:00:020
227194399254511,2530cyclictest2369922-21kworker/0:2+events00:13:140
227194399254511,2530cyclictest2369922-21kworker/0:2+events00:13:140
227194999254112,2526cyclictest2299072-21kworker/2:1+events20:34:512
22719439925366,2526cyclictest2289534-21kworker/0:1+events20:10:280
227195299253512,2519cyclictest2275007-21kworker/3:1+events19:24:033
227194399253212,2516cyclictest2363645-21kworker/0:3+events00:05:210
227194399253212,2516cyclictest2363645-21kworker/0:3+events00:05:210
22719499925309,2517cyclictest2367316-21kworker/2:0+events00:20:512
227194699252813,2511cyclictest2355461-21kworker/1:0+events23:47:291
227194399252812,2512cyclictest2358769-21kworker/0:0+events23:45:330
227194399252712,2511cyclictest2373194-21kworker/0:2+events00:23:310
22719529925268,2514cyclictest2343589-21kworker/3:0+events22:51:353
227194999252512,2510cyclictest2323437-21kworker/2:0+events21:51:122
227195299252411,2509cyclictest2294466-21kworker/3:1+events21:00:193
227194399252412,2509cyclictest2323066-21kworker/0:1+events21:50:270
22719439925178,2505cyclictest2278630-21kworker/0:2+events19:49:310
227194399251312,2497cyclictest2265246-21kworker/0:1+events19:33:550
227194399251210,2498cyclictest2339758-21kworker/0:0+events22:43:200
227194399251114,2493cyclictest2309087-21kworker/0:2+events21:23:300
22719439925107,2500cyclictest2296089-21kworker/0:1+events20:31:060
227194399251012,2494cyclictest2287919-21kworker/0:2+events19:59:180
227194399250912,2493cyclictest2341383-21kworker/0:1+events22:48:340
227194399250812,2492cyclictest2350812-21kworker/0:1+events23:19:490
227194399250712,2491cyclictest2341383-21kworker/0:1+events23:05:430
227194399250712,2491cyclictest2265246-21kworker/0:1+events19:27:100
227195299250612,2490cyclictest2294466-21kworker/3:1+events20:34:043
227195299250611,2491cyclictest2360421-21kworker/3:2+events23:52:243
227194699250512,2489cyclictest2330071-21kworker/1:2+events22:11:211
227194399250512,2491cyclictest2302217-21kworker/0:2+events20:50:080
227195299250412,2488cyclictest2318845-21kworker/3:1+events21:40:123
227194999250411,2489cyclictest2283124-21kworker/2:2+events19:43:482
227194399250412,2488cyclictest2363645-21kworker/0:3+events00:00:420
227194399250212,2486cyclictest2309087-21kworker/0:2+events21:16:170
22719469925012,2495cyclictest2313808-21kworker/1:0+events21:23:541
227194399249911,2485cyclictest2265246-21kworker/0:1+events19:15:150
227194999249512,2479cyclictest2371441-21kworker/2:1+events00:16:142
227195299249412,2478cyclictest2345831-21kworker/3:2+events22:56:583
22719499924948,2482cyclictest2347506-21kworker/2:1+events23:17:092
227194999249312,2477cyclictest2291174-21kworker/2:1+events20:16:092
227194999249310,2479cyclictest2312255-21kworker/2:2+events21:17:022
227194399249111,2477cyclictest2333428-21kworker/0:1+events22:20:310
227194399249111,2477cyclictest2333428-21kworker/0:1+events22:20:310
227195299248611,2471cyclictest2290916-21kworker/3:2+events20:20:253
227194999248612,2470cyclictest2295869-21kworker/2:2+events20:39:012
227194699248312,2467cyclictest2330071-21kworker/1:2+events22:08:171
227194699248212,2467cyclictest2323449-21kworker/1:0+events21:47:471
22719529924818,2471cyclictest2310630-21kworker/3:2+events21:15:083
227195299248111,2467cyclictest2330281-21kworker/3:2+events22:10:113
227194999248112,2464cyclictest2325067-21kworker/2:1+events22:03:222
227194699248112,2465cyclictest2281388-21kworker/1:1+events19:52:061
22719439924817,2471cyclictest2358769-21kworker/0:0+events23:39:500
227194399248112,2466cyclictest2307463-21kworker/0:0+events21:02:120
227194399248112,2465cyclictest2309087-21kworker/0:2+events21:09:040
227195299248012,2464cyclictest2349092-21kworker/3:1+events23:47:533
227195299247912,2464cyclictest2331881-21kworker/3:1+events22:18:133
227194699247912,2464cyclictest2307344-21kworker/1:1+events20:59:561
227194699247912,2463cyclictest2345952-21kworker/1:2+events23:02:161
227195299247611,2461cyclictest2294466-21kworker/3:1+events21:08:413
22719499924759,2463cyclictest2358800-21kworker/2:0+events23:44:242
227194699247412,2458cyclictest2373256-21kworker/1:2+events00:30:461
227194699247312,2457cyclictest2342749-21kworker/1:1+events22:51:581
227194999247212,2459cyclictest2355555-21kworker/2:0+events23:33:242
227194699247114,2453cyclictest2336748-21kworker/1:2+events22:36:491
227194999246912,2453cyclictest2333390-21kworker/2:0+events22:24:412
227194999246912,2453cyclictest2333390-21kworker/2:0+events22:24:402
227194999246712,2451cyclictest2312255-21kworker/2:2+events21:26:342
227194399246412,2449cyclictest2280605-21kworker/0:0+events19:36:570
227194999246312,2447cyclictest2344275-21kworker/2:0+events22:53:542
227194999246212,2446cyclictest2353961-21kworker/2:1+events23:39:282
227194999246114,2444cyclictest2313867-21kworker/2:0+events21:38:422
227194399245612,2440cyclictest2302217-21kworker/0:2+events20:44:010
22719469924547,2443cyclictest2287875-21kworker/1:1+events19:58:541
227195299245312,2438cyclictest2376551-21kworker/3:1+events00:36:553
227194699245212,2436cyclictest2373256-21kworker/1:2+events00:38:271
227194699245210,2439cyclictest2289609-21kworker/1:0+events20:06:021
227194399245212,2436cyclictest2328561-21kworker/0:1+events22:07:540
227195299245112,2435cyclictest2337932-21kworker/3:1+events23:00:213
22719499924508,2438cyclictest2312255-21kworker/2:2+events21:31:472
227195299244912,2433cyclictest2294466-21kworker/3:1+events20:36:243
227194399244910,2436cyclictest2371554-21kworker/0:1+events00:17:460
227194399244712,2431cyclictest2328561-21kworker/0:1+events22:12:300
227194399244512,2429cyclictest2294370-21kworker/0:2+events20:25:200
227194999244410,2431cyclictest2338193-21kworker/2:0+events22:40:162
22719439924448,2433cyclictest2309087-21kworker/0:2+events21:32:350
227194399244412,2428cyclictest2374828-21kworker/0:0+events00:31:570
227194399244212,2426cyclictest2350812-21kworker/0:1+events23:25:290
227194999244112,2425cyclictest2378000-21kworker/2:0+events00:38:502
227195299244012,2425cyclictest2304144-21kworker/3:0+events20:47:463
227194399244012,2424cyclictest2338140-21kworker/0:2+events22:37:350
227194399244012,2424cyclictest2268514-21kworker/0:0+events19:24:250
227195299243812,2422cyclictest2318845-21kworker/3:1+events21:34:273
227195299243713,2421cyclictest2371745-21kworker/3:1+events00:24:183
227195299243712,2421cyclictest2368359-21kworker/3:2+events00:12:043
227195299243712,2421cyclictest2368359-21kworker/3:2+events00:12:043
227194699243712,2421cyclictest2276939-21kworker/1:0+events19:36:111
227194399243612,2420cyclictest2296089-21kworker/0:1+events20:24:350
227195299243512,2419cyclictest2290916-21kworker/3:2+events20:15:473
227194399243412,2419cyclictest2278630-21kworker/0:2+events19:51:000
227194399243411,2419cyclictest2358769-21kworker/0:0+events23:54:390
227194699243212,2417cyclictest2355461-21kworker/1:0+events23:53:301
227194399243210,2418cyclictest2373194-21kworker/0:2+events00:28:060
227195299243112,2415cyclictest2335135-21kworker/3:2+events22:27:423
227194399243112,2416cyclictest2278630-21kworker/0:2+events19:40:440
227194999243012,2414cyclictest2313867-21kworker/2:0+events21:23:082
227194399243012,2414cyclictest2309087-21kworker/0:2+events21:44:250
227194699242812,2412cyclictest2326817-21kworker/1:1+events21:59:361
227195299242712,2413cyclictest2294466-21kworker/3:1+events20:55:253
227194399242712,2411cyclictest2309087-21kworker/0:2+events21:26:120
227194399242712,2411cyclictest2304204-21kworker/0:1+events20:48:340
227194399242710,2414cyclictest2294370-21kworker/0:2+events20:18:300
227194399242612,2410cyclictest2363645-21kworker/0:3+events23:57:410
227194399242612,2410cyclictest2355739-21kworker/0:3+events23:40:580
227194699242512,2410cyclictest2273292-21kworker/1:0+events19:18:171
227194999242411,2410cyclictest2352329-21kworker/2:0+events23:20:332
227194399242412,2408cyclictest2338140-21kworker/0:2+events22:34:300
227194399242412,2408cyclictest2309087-21kworker/0:2+events21:14:460
227194399242411,2409cyclictest2325040-21kworker/0:2+events21:58:060
22719469924221,2417cyclictest2320239-21kworker/1:2+events22:00:431
227194399242211,2408cyclictest2307463-21kworker/0:0+events20:59:310
227194999242112,2406cyclictest2295869-21kworker/2:2+events20:25:432
227194399242112,2406cyclictest2341383-21kworker/0:1+events22:57:450
227194699242011,2405cyclictest2294588-21kworker/1:0+events20:24:581
227195299241911,2405cyclictest2325071-21kworker/3:2+events22:01:513
22719499924198,2407cyclictest2279857-21kworker/2:2+events19:32:502
227194999241912,2404cyclictest2344275-21kworker/2:0+events22:58:072
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227194699241712,2401cyclictest2294588-21kworker/1:0+events20:28:251
227195299241512,2401cyclictest2318845-21kworker/3:1+events21:50:043
227195299241412,2398cyclictest2310630-21kworker/3:2+events21:35:373
227194999241212,2396cyclictest2367316-21kworker/2:0+events00:29:122
227194999241011,2395cyclictest2300678-21kworker/2:0+events20:52:462
227194699241012,2394cyclictest2355461-21kworker/1:0+events00:00:191
227194999240911,2395cyclictest2374708-21kworker/2:1+events00:33:072
22719499924087,2397cyclictest2307404-21kworker/2:2+events20:59:092
227194999240810,2394cyclictest2330175-21kworker/2:2+events22:17:272
227195299240612,2391cyclictest2328650-21kworker/3:0+events22:09:253
227195299240512,2389cyclictest2325071-21kworker/3:2+events21:55:263
227194999240512,2390cyclictest2281497-21kworker/2:0+events19:57:482
227194999240511,2391cyclictest2325067-21kworker/2:1+events22:13:592
227195299240410,2391cyclictest2294466-21kworker/3:1+events20:26:513
227194999240412,2388cyclictest2347506-21kworker/2:1+events23:07:152
227194699240412,2388cyclictest2352148-21kworker/1:1+events23:27:221
227194999240312,2387cyclictest2333390-21kworker/2:0+events22:28:512
227195299240212,2387cyclictest2292799-21kworker/3:0+events20:14:383
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22719469924009,2388cyclictest2369865-21kworker/1:1+events00:27:441
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227194999239912,2385cyclictest2275042-21kworker/2:1+events19:35:482
227194999239911,2384cyclictest2365279-21kworker/2:3+events00:07:362
227194999239911,2384cyclictest2365279-21kworker/2:3+events00:07:352
227194999239910,2385cyclictest2336597-21kworker/2:1+events22:39:302
227194699239912,2385cyclictest2299048-21kworker/1:2+events20:40:111
227194699239912,2383cyclictest2276939-21kworker/1:0+events19:28:401
227194699239912,2383cyclictest2273292-21kworker/1:0+events19:14:521
227194699239911,2385cyclictest2369865-21kworker/1:1+events00:12:271
227194699239911,2385cyclictest2369865-21kworker/1:1+events00:12:271
227194699239812,2382cyclictest2355461-21kworker/1:0+events23:31:091
227195299239712,2381cyclictest2373360-21kworker/3:0+events00:31:103
227194699239612,2381cyclictest2275310-21kworker/1:2+events19:35:011
227195299239512,2380cyclictest2287510-21kworker/3:1+events20:04:083
227194699239511,2381cyclictest2367051-21kworker/1:2+events00:09:511
227194699239511,2381cyclictest2367051-21kworker/1:2+events00:09:511
227195299239412,2380cyclictest2373360-21kworker/3:0+events00:25:023
227195299239412,2378cyclictest2268425-21kworker/3:2+events19:17:333
227194999239412,2380cyclictest2310651-21kworker/2:0+events21:10:102
227194699239412,2380cyclictest2287875-21kworker/1:1+events20:14:141
227194699239412,2378cyclictest2294588-21kworker/1:0+events20:33:201
227195299239312,2377cyclictest2366751-21kworker/3:1+events00:01:523
227195299239312,2377cyclictest2347451-21kworker/3:0+events23:06:543
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227194999238312,2368cyclictest2307404-21kworker/2:2+events21:04:312
227194699238112,2365cyclictest2333371-21kworker/1:1+events22:30:451
227194699238111,2367cyclictest2300737-21kworker/1:1+events20:38:361
227194699237612,2360cyclictest2355461-21kworker/1:0+events00:18:311
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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