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2026-08-24 - 06:23

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 792 highest latencies:
System rackfslot7s.osadl.org (updated Mon Aug 24, 2026 00:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
43306599410620,4079cyclictest526024-21kworker/3:2+events00:10:193
43305499304514,3027cyclictest501935-21kworker/0:1+events22:45:200
43305499303213,3016cyclictest478032-21kworker/0:1+events21:45:170
43306599302715,3008cyclictest526024-21kworker/3:2+events00:15:203
43306599291814,2900cyclictest498698-21kworker/3:2+events22:35:183
43305499284813,2831cyclictest478032-21kworker/0:1+events21:50:110
43306399280814,2789cyclictest453687-21kworker/2:0+events20:25:182
43306399280213,2784cyclictest535493-21kworker/2:2+events00:35:132
43306599280014,2782cyclictest468291-21kworker/3:2+events21:05:113
43306399278913,2770cyclictest507160-21kworker/2:1+events23:10:112
43305499277413,2758cyclictest514868-21kworker/0:0+events23:39:350
43305499277313,2755cyclictest522753-21kworker/0:1+events23:55:130
43306599277113,2753cyclictest494232-21kworker/3:0+events22:50:013
43306599276713,2752cyclictest468291-21kworker/3:2+events21:00:153
43305499276413,2748cyclictest513227-21kworker/0:1+events23:33:310
43306599273713,2720cyclictest503417-21kworker/3:2+events23:05:133
43306599273013,2713cyclictest482662-21kworker/3:0+events22:10:203
43305499264013,2623cyclictest525964-21kworker/0:0+events00:17:550
43306399259512,2581cyclictest451973-21kworker/2:1+events20:15:002
43305999259312,2577cyclictest484452-21kworker/1:0+events22:02:191
43305999259312,2577cyclictest484452-21kworker/1:0+events22:02:191
43305499258112,2565cyclictest434223-21kworker/0:2+events19:26:090
43305499257510,2561cyclictest437869-21kworker/0:0+events19:40:130
4330549925728,2560cyclictest442739-21kworker/0:2+events19:45:130
43305499257013,2553cyclictest514868-21kworker/0:0+events23:27:520
43305999256812,2552cyclictest444353-21kworker/1:1+events20:24:091
43305499256812,2553cyclictest522753-21kworker/0:1+events23:49:250
43306399255910,2546cyclictest457564-21kworker/2:2+events20:52:142
43305999255711,2542cyclictest469706-21kworker/1:2+events21:09:491
43305999255510,2541cyclictest509943-21kworker/1:1+events23:29:221
43305999255412,2538cyclictest495734-21kworker/1:0+events22:28:031
4330639925498,2537cyclictest533799-21kworker/2:0+events00:22:302
4330549925499,2537cyclictest525964-21kworker/0:0+events00:05:010
4330549925499,2537cyclictest525964-21kworker/0:0+events00:05:000
43305999254812,2534cyclictest487732-21kworker/1:2+events22:06:521
43305499254212,2526cyclictest452031-21kworker/0:2+events20:11:360
43306399254112,2526cyclictest492453-21kworker/2:1+events22:27:172
43306399253912,2523cyclictest518025-21kworker/2:2+events23:39:112
43306399253812,2522cyclictest532181-21kworker/2:1+events00:16:502
43306399253512,2519cyclictest482539-21kworker/2:2+events21:54:012
43306399253511,2520cyclictest497336-21kworker/2:2+events22:33:002
4330549925339,2520cyclictest497099-21kworker/0:2+events22:28:500
43305499253210,2518cyclictest464411-21kworker/0:1+events21:01:010
43305499252911,2516cyclictest492288-21kworker/0:0+events22:15:530
4330549925279,2514cyclictest478032-21kworker/0:1+events21:36:320
43305999252612,2511cyclictest517968-21kworker/1:0+events23:33:541
43305499252411,2511cyclictest464411-21kworker/0:1+events20:55:390
43305499252212,2506cyclictest525964-21kworker/0:0+events00:27:070
43306599251211,2497cyclictest480972-21kworker/3:1+events21:37:183
43305999250612,2491cyclictest500296-21kworker/1:1+events22:48:501
43305999250612,2490cyclictest448808-21kworker/1:0+events20:05:311
43305499250612,2490cyclictest525964-21kworker/0:0+events00:30:130
43305499249812,2482cyclictest464411-21kworker/0:1+events21:06:220
43306399249612,2481cyclictest482539-21kworker/2:2+events21:58:312
43305999249312,2478cyclictest511564-21kworker/1:0+events23:24:031
43305999249312,2477cyclictest530683-21kworker/1:2+events00:22:071
43306399249211,2477cyclictest472973-21kworker/2:1+events21:20:342
4330599924919,2479cyclictest522875-21kworker/1:2+events23:54:031
43305999249112,2476cyclictest481158-21kworker/1:1+events21:53:381
43305999249112,2476cyclictest453806-21kworker/1:0+events20:15:461
43305999249112,2476cyclictest453806-21kworker/1:0+events20:15:461
43306599249012,2475cyclictest505120-21kworker/3:1+events23:23:193
43305999249012,2474cyclictest529021-21kworker/1:0+events00:09:551
43305999249011,2475cyclictest453806-21kworker/1:0+events20:31:231
43305999248611,2472cyclictest508341-21kworker/1:0+events23:04:061
43306599248512,2470cyclictest436516-21kworker/3:1+events19:30:213
43306599248412,2468cyclictest436516-21kworker/3:1+events19:24:143
43306399248212,2466cyclictest519656-21kworker/2:0+events23:40:192
43305999248212,2466cyclictest522875-21kworker/1:2+events00:03:541
43305999248212,2466cyclictest522875-21kworker/1:2+events00:03:531
43305999248013,2464cyclictest469706-21kworker/1:2+events21:11:191
43305999248012,2464cyclictest478104-21kworker/1:2+events21:33:311
43305499247812,2463cyclictest478032-21kworker/0:1+events22:01:550
43305499247812,2463cyclictest478032-21kworker/0:1+events22:01:550
43306399247712,2461cyclictest451973-21kworker/2:1+events20:07:242
43305499247712,2461cyclictest447167-21kworker/0:0+events20:08:580
43305999247612,2460cyclictest522875-21kworker/1:2+events23:56:201
43305999247612,2460cyclictest495734-21kworker/1:0+events22:40:291
43305999247511,2460cyclictest462013-21kworker/1:0+events20:56:031
4330549924758,2463cyclictest530834-21kworker/0:2+events00:24:270
4330549924748,2462cyclictest498696-21kworker/0:0+events22:42:460
43305499247012,2454cyclictest478032-21kworker/0:1+events21:32:450
43306599246912,2455cyclictest514801-21kworker/3:2+events23:35:043
43305999246910,2456cyclictest529021-21kworker/1:0+events00:13:221
43305999246810,2455cyclictest537089-21kworker/1:2+events00:37:541
43306599246712,2452cyclictest532376-21kworker/3:1+events00:23:393
43305999246712,2450cyclictest505027-21kworker/1:2+events23:05:351
43306399246411,2449cyclictest507160-21kworker/2:1+events23:22:352
43306599246312,2447cyclictest514801-21kworker/3:2+events23:28:383
43305999246311,2450cyclictest462013-21kworker/1:0+events20:45:041
43305999246212,2448cyclictest492420-21kworker/1:0+events22:15:071
43305999246211,2447cyclictest481158-21kworker/1:1+events21:45:401
43305999246211,2447cyclictest444353-21kworker/1:1+events20:01:191
43306599246012,2446cyclictest463460-21kworker/3:0+events20:50:023
43306599246012,2445cyclictest456857-21kworker/3:0+events20:35:573
43306399246010,2446cyclictest492453-21kworker/2:1+events22:14:002
43306399245912,2444cyclictest479788-21kworker/2:1+events21:35:462
43306399245612,2440cyclictest519656-21kworker/2:0+events00:11:042
43305499245612,2441cyclictest471246-21kworker/0:0+events21:10:560
43306399245512,2439cyclictest524267-21kworker/2:2+events23:52:302
43306399245510,2441cyclictest426314-21kworker/2:1+events19:21:352
43306399245412,2439cyclictest457564-21kworker/2:2+events20:49:152
43306399245412,2438cyclictest482539-21kworker/2:2+events22:00:232
43306399245412,2438cyclictest482539-21kworker/2:2+events22:00:222
43306399245312,2437cyclictest437920-21kworker/2:2+events19:49:222
43306399245211,2437cyclictest498969-21kworker/2:1+events22:49:382
4330549924529,2439cyclictest506781-21kworker/0:1+events23:13:180
43305499245212,2436cyclictest522753-21kworker/0:1+events23:52:070
43305499245211,2437cyclictest506781-21kworker/0:1+events22:59:330
43306399245012,2435cyclictest526082-21kworker/2:1+events00:03:302
43306399245012,2435cyclictest526082-21kworker/2:1+events00:03:302
43306399245012,2435cyclictest453687-21kworker/2:0+events20:35:342
43306399245012,2435cyclictest453687-21kworker/2:0+events20:18:272
43306399245012,2435cyclictest453687-21kworker/2:0+events20:18:272
43306399245012,2434cyclictest437920-21kworker/2:2+events19:25:222
43306399244912,2433cyclictest465152-21kworker/2:0+events21:17:302
43306399244812,2433cyclictest532181-21kworker/2:1+events00:25:112
43305499244812,2432cyclictest498696-21kworker/0:0+events22:36:020
4330599924479,2434cyclictest462013-21kworker/1:0+events21:25:571
43305499244712,2432cyclictest478032-21kworker/0:1+events22:05:210
43305499244710,2434cyclictest447167-21kworker/0:0+events20:15:220
43305499244710,2434cyclictest447167-21kworker/0:0+events20:15:220
43306399244612,2431cyclictest519656-21kworker/2:0+events23:59:232
43306399244611,2432cyclictest451973-21kworker/2:1+events20:23:452
43305499244512,2430cyclictest493894-21kworker/0:1+events22:31:050
43305499244512,2430cyclictest456915-21kworker/0:1+events20:31:450
43305499244311,2428cyclictest450435-21kworker/0:1+events20:03:390
43305499244310,2430cyclictest447167-21kworker/0:0+events19:58:390
43306399244212,2426cyclictest457564-21kworker/2:2+events20:43:102
43305999244010,2426cyclictest458718-21kworker/1:2+events20:29:501
43305499243710,2423cyclictest538492-21kworker/0:2+events00:36:460
43305499243612,2422cyclictest434223-21kworker/0:2+events19:20:080
43305499243612,2421cyclictest508432-21kworker/0:2+events23:04:510
43306599243111,2417cyclictest439343-21kworker/3:0+events19:35:173
43305499243012,2414cyclictest525964-21kworker/0:0+events00:06:310
43305499242711,2412cyclictest437869-21kworker/0:0+events19:34:110
43306599242512,2409cyclictest455229-21kworker/3:1+events20:27:103
43306399242511,2412cyclictest477926-21kworker/2:0+events21:40:432
43306599241611,2402cyclictest490958-21kworker/3:2+events22:24:173
43306399241411,2399cyclictest457564-21kworker/2:2+events20:30:132
43305999241310,2399cyclictest509943-21kworker/1:1+events23:14:051
43306399241110,2397cyclictest437920-21kworker/2:2+events19:59:252
43306599240412,2390cyclictest505120-21kworker/3:1+events23:01:513
43305499240412,2389cyclictest444620-21kworker/0:1+events19:52:530
4330659924007,2390cyclictest458748-21kworker/3:2+events20:41:143
43306599240011,2385cyclictest471372-21kworker/3:0+events21:22:283
43306599239911,2385cyclictest456857-21kworker/3:0+events20:33:183
43306599239712,2382cyclictest535591-21kworker/3:0+events00:31:203
43306599239712,2381cyclictest485902-21kworker/3:1+events21:54:243
43306599239710,2385cyclictest436516-21kworker/3:1+events20:05:093
43306599239612,2381cyclictest456857-21kworker/3:0+events20:24:333
43306399239610,2382cyclictest439522-21kworker/2:1+events19:33:252
43305999239612,2380cyclictest440979-21kworker/1:2+events19:53:401
43306599239512,2379cyclictest450703-21kworker/3:0+events20:13:313
43306599239412,2379cyclictest482662-21kworker/3:0+events22:07:143
43306599239312,2378cyclictest449020-21kworker/3:2+events20:00:343
43306599239311,2379cyclictest482662-21kworker/3:0+events22:01:103
43306599239311,2379cyclictest482662-21kworker/3:0+events22:01:093
43306599239210,2379cyclictest436516-21kworker/3:1+events19:51:183
4330659923909,2378cyclictest436516-21kworker/3:1+events19:48:123
43306399238812,2373cyclictest437920-21kworker/2:2+events19:53:152
43306599238612,2370cyclictest471372-21kworker/3:0+events21:13:383
43305499237811,2363cyclictest514868-21kworker/0:0+events23:42:570
4330659923779,2364cyclictest526228-21kworker/3:3+events00:09:323
43306599237512,2359cyclictest494232-21kworker/3:0+events22:26:093
43306399237012,2355cyclictest492453-21kworker/2:1+events22:23:302
43306599236712,2352cyclictest439343-21kworker/3:0+events19:27:183
43305499236610,2352cyclictest472875-21kworker/0:2+events21:20:570
4330639923637,2354cyclictest471309-21kworker/2:2+events21:10:112
43306599235811,2344cyclictest503417-21kworker/3:2+events22:59:103
43305999235312,2338cyclictest515071-21kworker/1:2+events23:36:361
43305499235211,2337cyclictest486049-21kworker/0:2+events21:57:020
43305499235013,2333cyclictest455263-21kworker/0:2+events20:23:230
43306399234910,2337cyclictest437920-21kworker/2:2+events20:00:102
43305999234212,2327cyclictest537089-21kworker/1:2+events00:34:261
43305999233010,2317cyclictest505027-21kworker/1:2+events22:53:071
43306399232712,2312cyclictest432624-21kworker/2:0+events19:19:212
43306399232710,2314cyclictest503448-21kworker/2:2+events22:50:242
43306399231510,2303cyclictest477926-21kworker/2:0+events21:30:072
43305999231112,2296cyclictest462013-21kworker/1:0+events21:16:441
43306599231012,2295cyclictest537193-21kworker/3:1+events00:35:363
43306399230010,2287cyclictest503448-21kworker/2:2+events23:00:192
4330549923009,2287cyclictest508432-21kworker/0:2+events23:23:420
43305999229711,2283cyclictest444353-21kworker/1:1+events20:14:171
43305999228512,2270cyclictest462013-21kworker/1:0+events20:54:301
43306599228411,2269cyclictest466656-21kworker/3:1+events20:59:063
43305999228212,2266cyclictest442666-21kworker/1:0+events19:43:211
43305999227610,2263cyclictest530683-21kworker/1:2+events00:26:451
43305999227411,2260cyclictest460357-21kworker/1:1+events20:37:031
43305999227411,2259cyclictest437711-21kworker/1:1+events19:22:201
43305999227211,2258cyclictest462013-21kworker/1:0+events21:03:391
43305999227111,2257cyclictest427828-21kworker/1:0+events19:17:481
43305999227110,2258cyclictest490804-21kworker/1:1+events22:11:281
4330599922704,2262cyclictest517968-21kworker/1:0+events23:48:381
43305999226911,2255cyclictest427828-21kworker/1:0+events19:12:271
4330599922668,2254cyclictest487732-21kworker/1:2+events22:33:471
43305999226611,2251cyclictest476441-21kworker/1:1+events21:24:471
43305999226611,2251cyclictest462013-21kworker/1:0+events20:42:011
43306399226510,2251cyclictest426314-21kworker/2:1+events19:11:442
43305999226411,2249cyclictest481158-21kworker/1:1+events21:43:241
43305999226410,2250cyclictest448808-21kworker/1:0+events19:59:471
4330599922639,2251cyclictest530683-21kworker/1:2+events00:15:421
43305999226111,2248cyclictest511564-21kworker/1:0+events23:17:331
43305999226110,2248cyclictest437711-21kworker/1:1+events19:32:171
43305999226110,2247cyclictest437711-21kworker/1:1+events19:29:121
4330599922607,2249cyclictest506658-21kworker/1:1+events22:59:571
43305499225912,2244cyclictest508432-21kworker/0:2+events23:09:250
43305499225912,2243cyclictest503544-21kworker/0:2+events22:51:570
43305499225811,2243cyclictest472875-21kworker/0:2+events21:17:540
43306399225711,2244cyclictest437920-21kworker/2:2+events19:35:402
4330599922518,2240cyclictest481158-21kworker/1:1+events21:56:151
43306599224912,2234cyclictest455229-21kworker/3:1+events20:18:503
43306599224912,2234cyclictest455229-21kworker/3:1+events20:18:493
43305499224710,2234cyclictest434223-21kworker/0:2+events19:17:240
43305499224411,2230cyclictest456915-21kworker/0:1+events20:29:050
43305499224310,2230cyclictest490484-21kworker/0:2+events22:14:230
43306399224110,2228cyclictest477926-21kworker/2:0+events22:18:582
4330599922369,2223cyclictest437711-21kworker/1:1+events19:37:111
43306399223511,2220cyclictest465152-21kworker/2:0+events20:59:512
43306399223510,2221cyclictest477926-21kworker/2:0+events21:47:352
43306399223211,2218cyclictest498969-21kworker/2:1+events22:43:102
43306399223210,2219cyclictest535493-21kworker/2:2+events00:33:172
4330639922318,2220cyclictest507160-21kworker/2:1+events23:16:462
43305999223110,2217cyclictest495734-21kworker/1:0+events22:36:471
4330639922309,2218cyclictest498969-21kworker/2:1+events22:37:332
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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