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2026-08-09 - 06:44

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 Aug 09, 2026 00:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
171548599370516,3683cyclictest1782727-21kworker/2:0+events22:55:122
171548899336612,3350cyclictest1745602-21kworker/3:2+events20:45:183
171548599322019,3195cyclictest1744107-21kworker/2:0+events20:50:132
171548599313112,3114cyclictest1734480-21kworker/2:1+events20:15:162
171548899309515,3075cyclictest1723615-21kworker/3:0+events19:35:133
171548899300514,2985cyclictest1772956-21kworker/3:0+events22:30:113
17154819929814,2973cyclictest1734451-21kworker/1:2+events20:10:221
171548599295814,2939cyclictest1752411-21kworker/2:1+events21:20:192
17154889929564,2948cyclictest1767947-21kworker/3:2+events22:10:443
171548199293614,2918cyclictest1765007-21kworker/1:0+events22:08:071
17154789929088,2896cyclictest1754069-21kworker/0:1+events21:15:000
171548199288613,2867cyclictest1748897-21kworker/1:0+events20:55:131
171548199284611,2830cyclictest1811577-21kworker/1:0+events00:20:171
171547899282013,2804cyclictest1771506-21kworker/0:1+events22:10:010
171548199278513,2768cyclictest1765007-21kworker/1:0+events22:10:221
171548199277413,2757cyclictest1774810-21kworker/1:2+events22:15:181
171548199277013,2753cyclictest1817628-21kworker/1:2+events00:28:361
171548199277013,2753cyclictest1817628-21kworker/1:2+events00:28:351
171548199276513,2748cyclictest1819478-21kworker/1:1+events00:38:091
171548199276013,2743cyclictest1800354-21kworker/1:1+events23:34:581
171548199275913,2742cyclictest1781277-21kworker/1:0+events22:34:401
171547899275313,2735cyclictest1797187-21kworker/0:1+events23:25:130
171548199275113,2734cyclictest1790749-21kworker/1:0+events23:14:121
171548199275013,2733cyclictest1763380-21kworker/1:1+events21:48:331
171548199274513,2728cyclictest1784478-21kworker/1:2+events22:59:001
171548199274513,2728cyclictest1748897-21kworker/1:0+events21:26:251
171548199274413,2727cyclictest1804923-21kworker/1:0+events23:47:281
171548599272513,2708cyclictest1801751-21kworker/2:2+events23:40:152
171548599271612,2700cyclictest1782727-21kworker/2:0+events23:11:362
171547899270813,2691cyclictest1739405-21kworker/0:1+events20:32:390
171548899270313,2686cyclictest1729697-21kworker/3:1+events20:14:533
171548199269611,2681cyclictest1732835-21kworker/1:0+events20:06:071
17154859926949,2682cyclictest1734480-21kworker/2:1+events20:13:232
171548199269412,2678cyclictest1790749-21kworker/1:0+events23:19:521
171548199268411,2669cyclictest1800354-21kworker/1:1+events23:39:301
171547899268313,2666cyclictest1760144-21kworker/0:2+events22:19:530
171548599268113,2664cyclictest1744107-21kworker/2:0+events20:45:422
171548199268013,2664cyclictest1742726-21kworker/1:0+events20:39:081
171548599267213,2655cyclictest1771566-21kworker/2:1+events22:09:382
171548599266613,2649cyclictest1790783-21kworker/2:2+events23:15:202
171548599266512,2649cyclictest1819570-21kworker/2:1+events00:33:362
171548899266413,2647cyclictest1767947-21kworker/3:2+events21:52:013
171548899266013,2643cyclictest1814545-21kworker/3:1+events00:32:053
171548899265613,2639cyclictest1731362-21kworker/3:0+events20:09:373
171548599265413,2637cyclictest1771566-21kworker/2:1+events22:41:342
171548599265013,2633cyclictest1754510-21kworker/2:2+events21:18:492
171548599265013,2633cyclictest1754510-21kworker/2:2+events21:18:482
171547899265013,2633cyclictest1806529-21kworker/0:2+events00:37:450
17154789926499,2636cyclictest1726635-21kworker/0:0+events19:45:540
171547899264913,2632cyclictest1725009-21kworker/0:1+events19:56:370
171547899264413,2627cyclictest1781131-21kworker/0:1+events22:39:190
171548599264113,2624cyclictest1779995-21kworker/2:2+events22:33:562
171547899264113,2624cyclictest1732896-21kworker/0:2+events20:02:220
171548599264013,2623cyclictest1810080-21kworker/2:1+events00:09:182
171548599264011,2625cyclictest1817658-21kworker/2:0+events00:28:582
171548599264011,2625cyclictest1817658-21kworker/2:0+events00:28:582
171547899263813,2621cyclictest1744209-21kworker/0:0+events20:41:270
171548599263713,2620cyclictest1740909-21kworker/2:1+events20:38:222
171548199262611,2612cyclictest1779582-21kworker/1:1+events22:29:491
171547899262013,2604cyclictest1737623-21kworker/0:2+events20:18:390
171548599260913,2593cyclictest1740909-21kworker/2:1+events20:30:462
17154789925918,2579cyclictest1754069-21kworker/0:1+events21:30:150
171548899258513,2570cyclictest1739520-21kworker/3:1+events20:35:213
171548599257013,2554cyclictest1768102-21kworker/2:0+events22:01:372
171548599257012,2555cyclictest1811867-21kworker/2:0+events00:19:102
171548599256712,2551cyclictest1734480-21kworker/2:1+events20:21:182
171548899256311,2550cyclictest1752491-21kworker/3:1+events21:10:003
171547899255313,2537cyclictest1806529-21kworker/0:2+events23:53:330
171548599254810,2535cyclictest1725130-21kworker/2:0+events19:50:292
171548599254112,2526cyclictest1803458-21kworker/2:0+events23:48:362
171548599254110,2527cyclictest1803458-21kworker/2:0+events23:50:552
171548599253813,2522cyclictest1782727-21kworker/2:0+events22:49:332
171548599253813,2522cyclictest1782727-21kworker/2:0+events22:49:322
171548199253712,2522cyclictest1720421-21kworker/1:1+events19:27:151
171548899253413,2518cyclictest1793901-21kworker/3:2+events23:18:193
171548199253412,2519cyclictest1781277-21kworker/1:0+events22:37:211
171548199253212,2517cyclictest1748897-21kworker/1:0+events21:34:011
17154819925316,2523cyclictest1737780-21kworker/1:2+events20:30:031
17154819925309,2517cyclictest1718768-21kworker/1:0+events19:20:431
171547899253013,2514cyclictest1789037-21kworker/0:2+events23:23:190
171548199252812,2513cyclictest1755560-21kworker/1:2+events21:16:541
171548199252812,2513cyclictest1755560-21kworker/1:2+events21:16:541
17154819925269,2514cyclictest1748897-21kworker/1:0+events21:20:421
171548199252612,2510cyclictest1748897-21kworker/1:0+events21:14:381
171548199252511,2511cyclictest1765007-21kworker/1:0+events22:00:271
17154819925245,2515cyclictest1737780-21kworker/1:2+events20:23:141
171548199252011,2506cyclictest1813232-21kworker/1:2+events00:18:461
171548199251311,2498cyclictest1722345-21kworker/1:0+events19:33:201
171548199251212,2497cyclictest1730044-21kworker/1:1+events19:58:521
171548199251112,2496cyclictest1748897-21kworker/1:0+events21:06:111
171548199251112,2494cyclictest1724917-21kworker/1:1+events19:37:301
171548199251012,2494cyclictest1806557-21kworker/1:1+events00:02:451
171548599250913,2493cyclictest1745722-21kworker/2:2+events20:44:322
171548199250912,2493cyclictest1761684-21kworker/1:2+events21:35:331
171548199250812,2494cyclictest1790749-21kworker/1:0+events23:05:061
171548199250812,2493cyclictest1730044-21kworker/1:1+events20:04:581
171548899250312,2488cyclictest1758839-21kworker/3:2+events21:25:393
171548199250312,2488cyclictest1802013-21kworker/1:2+events23:41:231
171547899249813,2483cyclictest1754069-21kworker/0:1+events21:15:450
171547899249813,2483cyclictest1754069-21kworker/0:1+events21:15:450
171548199249512,2481cyclictest1742726-21kworker/1:0+events20:40:401
171548199249411,2479cyclictest1817628-21kworker/1:2+events00:30:551
171548199249112,2476cyclictest1790749-21kworker/1:0+events23:02:461
171548899249012,2474cyclictest1739520-21kworker/3:1+events20:27:213
171548599248511,2470cyclictest1773169-21kworker/2:2+events22:11:292
171548199248512,2470cyclictest1737780-21kworker/1:2+events20:19:451
171548599248212,2467cyclictest1725130-21kworker/2:0+events20:09:592
171547899247812,2464cyclictest1798843-21kworker/0:0+events23:37:590
171548899247311,2458cyclictest1798904-21kworker/3:0+events00:08:093
171548199247212,2457cyclictest1784478-21kworker/1:2+events22:49:561
171548199247212,2457cyclictest1784478-21kworker/1:2+events22:49:561
171548199247212,2457cyclictest1745505-21kworker/1:1+events20:48:471
171547899247012,2456cyclictest1744209-21kworker/0:0+events20:52:320
171548899246112,2445cyclictest1819648-21kworker/3:2+events00:38:313
171548199246012,2444cyclictest1786231-21kworker/1:0+events22:54:271
171548899245612,2441cyclictest1772956-21kworker/3:0+events22:46:273
171548899245612,2441cyclictest1772956-21kworker/3:0+events22:46:263
171548199245411,2440cyclictest1806557-21kworker/1:1+events23:57:251
171547899245110,2437cyclictest1776113-21kworker/0:0+events22:25:100
171548599244911,2435cyclictest1721891-21kworker/2:2+events19:38:372
171547899244912,2433cyclictest1760144-21kworker/0:2+events21:57:030
171548199244810,2435cyclictest1776421-21kworker/1:0+events22:20:161
171548899244712,2431cyclictest1798904-21kworker/3:0+events23:42:083
171547899244612,2430cyclictest1725009-21kworker/0:1+events20:12:390
171548199244510,2433cyclictest1806557-21kworker/1:1+events00:05:021
171547899244412,2428cyclictest1760144-21kworker/0:2+events21:29:300
171548199243912,2425cyclictest1761684-21kworker/1:2+events21:40:101
171548199243911,2424cyclictest1802013-21kworker/1:2+events23:50:301
171548899243812,2422cyclictest1739520-21kworker/3:1+events20:53:193
171548899243812,2422cyclictest1729697-21kworker/3:1+events19:54:413
171547899243813,2422cyclictest1745952-21kworker/0:2+events20:47:360
171548899243612,2420cyclictest1737868-21kworker/3:2+events20:20:543
171548899243512,2420cyclictest1761801-21kworker/3:0+events21:41:443
171548899243510,2421cyclictest1772956-21kworker/3:0+events22:42:183
171547899243311,2418cyclictest1789037-21kworker/0:2+events23:03:090
171548599243212,2417cyclictest1721891-21kworker/2:2+events19:29:332
171548899243112,2415cyclictest1772956-21kworker/3:0+events22:17:583
171548599243112,2416cyclictest1771566-21kworker/2:1+events22:26:432
171548199243112,2416cyclictest1722345-21kworker/1:0+events19:52:031
171548199243112,2415cyclictest1798668-21kworker/1:2+events23:28:581
171548199242911,2415cyclictest1722345-21kworker/1:0+events19:47:491
171548199242910,2417cyclictest1795712-21kworker/1:1+events23:20:391
171548199242812,2414cyclictest1722345-21kworker/1:0+events19:43:571
171548199242811,2413cyclictest1736181-21kworker/1:1+events20:26:571
171548899242612,2410cyclictest1816158-21kworker/3:0+events00:27:263
171548899242612,2410cyclictest1816158-21kworker/3:0+events00:27:263
171548599242611,2413cyclictest1744107-21kworker/2:0+events21:00:092
171547899242611,2411cyclictest1713589-21kworker/0:1+events19:21:050
171548899242512,2410cyclictest1811302-21kworker/3:1+events00:10:473
171548599242512,2409cyclictest1752411-21kworker/2:1+events21:10:242
171548599242511,2410cyclictest1748907-21kworker/2:1+events20:57:292
171547899242512,2410cyclictest1754069-21kworker/0:1+events21:21:530
171547899242512,2409cyclictest1785984-21kworker/0:0+events22:59:230
17154889924244,2417cyclictest1750765-21kworker/3:0+events20:59:453
171548199242412,2408cyclictest1763380-21kworker/1:1+events21:52:251
171547899242411,2409cyclictest1789037-21kworker/0:2+events23:17:580
171548899242312,2408cyclictest1793901-21kworker/3:2+events23:24:053
171548899242312,2407cyclictest1767947-21kworker/3:2+events21:58:573
171548899242311,2408cyclictest1777838-21kworker/3:2+events22:27:073
171547899242312,2407cyclictest1812878-21kworker/0:1+events00:11:550
171548599242212,2407cyclictest1782727-21kworker/2:0+events22:52:132
17154889924219,2408cyclictest1748867-21kworker/3:2+events21:01:183
171548199242112,2405cyclictest1806557-21kworker/1:1+events00:13:511
171547899242112,2406cyclictest1817956-21kworker/0:0+events00:32:270
171547899242112,2406cyclictest1803340-21kworker/0:1+events23:41:470
171548199242012,2405cyclictest1765007-21kworker/1:0+events21:56:181
171548199241912,2404cyclictest1748897-21kworker/1:0+events21:02:491
171547899241912,2404cyclictest1776113-21kworker/0:0+events22:30:340
171548899241812,2402cyclictest1731362-21kworker/3:0+events20:19:233
171547899241712,2402cyclictest1798843-21kworker/0:0+events23:30:490
171548599241611,2401cyclictest1725130-21kworker/2:0+events19:57:002
171547899241612,2400cyclictest1798843-21kworker/0:0+events23:45:320
171548899241411,2400cyclictest1772956-21kworker/3:0+events22:35:473
171548899241410,2400cyclictest1786079-21kworker/3:2+events22:50:413
171547899241412,2398cyclictest1725009-21kworker/0:1+events19:52:250
171548599241312,2398cyclictest1793992-21kworker/2:1+events23:22:322
171548599241312,2398cyclictest1736074-21kworker/2:2+events20:25:502
171547899241312,2397cyclictest1750674-21kworker/0:2+events21:06:590
171548899241212,2397cyclictest1803427-21kworker/3:1+events23:46:193
171548599241212,2396cyclictest1782727-21kworker/2:0+events23:08:542
171548599241211,2398cyclictest1811867-21kworker/2:0+events00:13:062
171547899241212,2396cyclictest1812878-21kworker/0:1+events00:16:090
171548599241111,2396cyclictest1758479-21kworker/2:0+events21:32:072
171548599241110,2397cyclictest1714916-21kworker/2:1+events19:16:552
171548599241012,2395cyclictest1814398-21kworker/2:2+events00:24:262
171548599240912,2393cyclictest1797308-21kworker/2:2+events23:27:312
171547899240910,2396cyclictest1766124-21kworker/0:0+events21:47:240
171548899240812,2393cyclictest1761801-21kworker/3:0+events21:39:233
171548599240812,2393cyclictest1768102-21kworker/2:0+events21:53:342
171548599240812,2393cyclictest1725130-21kworker/2:0+events19:42:492
171547899240812,2393cyclictest1790844-21kworker/0:1+events23:06:370
171547899240812,2393cyclictest1776113-21kworker/0:0+events22:20:380
171547899240812,2392cyclictest1721954-21kworker/0:2+events19:41:400
171547899240712,2391cyclictest1717994-21kworker/0:0+events19:32:340
171548599240611,2392cyclictest1793992-21kworker/2:1+events23:36:512
171548599240511,2391cyclictest1806738-21kworker/2:1+events23:58:342
171548599240511,2390cyclictest1803458-21kworker/2:0+events00:03:542
171548199240512,2390cyclictest1784478-21kworker/1:2+events22:43:281
171548899239512,2379cyclictest1755469-21kworker/3:0+events21:19:113
171548899239512,2379cyclictest1755469-21kworker/3:0+events21:19:113
171547899239511,2381cyclictest1713589-21kworker/0:1+events19:17:190
171548899239212,2376cyclictest1777838-21kworker/3:2+events22:24:483
171548899238612,2371cyclictest1812907-21kworker/3:2+events00:17:173
171548899237311,2359cyclictest1814545-21kworker/3:1+events00:22:113
171548899237310,2359cyclictest1723615-21kworker/3:0+events19:40:283
171548899237112,2355cyclictest1731362-21kworker/3:0+events20:00:253
171548899236812,2353cyclictest1720240-21kworker/3:1+events19:34:283
171548599236812,2352cyclictest1763282-21kworker/2:1+events21:38:382
171548899236612,2350cyclictest1789510-21kworker/3:0+events23:06:173
171548899236512,2350cyclictest1793901-21kworker/3:2+events23:37:143
171547899236412,2348cyclictest1789037-21kworker/0:2+events23:11:120
17154889923629,2350cyclictest1758839-21kworker/3:2+events21:33:143
171548599236112,2346cyclictest1726780-21kworker/2:1+events19:47:032
171548599236111,2346cyclictest1766498-21kworker/2:1+events21:48:112
171548899236012,2344cyclictest1748867-21kworker/3:2+events21:08:523
171548899236011,2347cyclictest1786079-21kworker/3:2+events23:00:293
171548899235912,2344cyclictest1770031-21kworker/3:1+events22:03:313
171547899235714,2340cyclictest1781131-21kworker/0:1+events22:41:120
171548599235512,2340cyclictest1754510-21kworker/2:2+events21:26:032
171548599235511,2341cyclictest1769956-21kworker/2:2+events21:59:182
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