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2026-06-09 - 01:51

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 Jun 08, 2026 00:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16993449928416,2830cyclictest1736451-21kworker/3:2+events21:10:163
169933699279612,2778cyclictest1786117-21kworker/1:0+events00:25:121
169933499277112,2754cyclictest1753930-21kworker/0:1+events22:05:220
169933699276314,2746cyclictest1776633-21kworker/1:0+events23:20:181
169934499273113,2713cyclictest1707343-21kworker/3:0+events19:58:093
169934099271713,2700cyclictest1726878-21kworker/2:0+events20:43:202
169934099271710,2705cyclictest1776336-21kworker/2:2+events23:15:022
169933699271713,2700cyclictest1720985-21kworker/1:1+events20:30:211
169933699271610,2702cyclictest1737811-21kworker/1:2+events21:06:051
169934099271412,2698cyclictest1728600-21kworker/2:1+events20:50:132
169933699270713,2690cyclictest1720985-21kworker/1:1+events20:42:341
169933499268612,2670cyclictest1734919-21kworker/0:1+events21:03:510
169933499264413,2629cyclictest1712241-21kworker/0:2+events20:05:010
169934499263913,2622cyclictest1747849-21kworker/3:0+events21:42:283
169933499262612,2610cyclictest1786362-21kworker/0:1+events23:44:380
169934499261012,2595cyclictest1775003-21kworker/3:1+events23:08:513
169933499257812,2562cyclictest1739381-21kworker/0:1+events21:15:580
169933499257011,2557cyclictest1775034-21kworker/0:0+events23:05:030
16993349925629,2549cyclictest1773377-21kworker/0:2+events23:03:320
169933499255311,2538cyclictest1731503-21kworker/0:0+events20:59:210
169933499255011,2536cyclictest1794219-21kworker/0:1+events00:05:260
169933499254312,2527cyclictest1752303-21kworker/0:0+events21:54:410
169933499254014,2524cyclictest1712241-21kworker/0:2+events20:00:050
169933499252312,2507cyclictest1720388-21kworker/0:0+events20:11:520
169933699251812,2502cyclictest1763680-21kworker/1:0+events22:35:491
169933499251412,2499cyclictest1692524-21kworker/0:2+events19:35:120
169934099250512,2489cyclictest1778093-21kworker/2:0+events23:25:312
169933699250512,2489cyclictest1755589-21kworker/1:2+events22:07:591
169934099250410,2490cyclictest1745034-21kworker/2:1+events21:36:012
169933499250212,2487cyclictest1710370-21kworker/0:0+events19:45:320
169933499249911,2484cyclictest1770144-21kworker/0:1+events23:26:410
169934099249812,2483cyclictest1705639-21kworker/2:0+events19:31:442
169934499249712,2482cyclictest1760433-21kworker/3:2+events22:38:483
169933499249712,2481cyclictest1760305-21kworker/0:1+events22:21:190
169933499249712,2481cyclictest1753930-21kworker/0:1+events22:02:200
169934499249512,2479cyclictest1763949-21kworker/3:0+events22:31:593
169933499249511,2480cyclictest1749553-21kworker/0:1+events21:49:480
169934099249412,2478cyclictest1716979-21kworker/2:1+events20:07:412
169933699249411,2479cyclictest1709074-21kworker/1:2+events20:15:161
169933499249412,2478cyclictest1700746-21kworker/0:0+events19:26:200
169933499249412,2478cyclictest1700746-21kworker/0:0+events19:20:560
169933499249312,2477cyclictest1731503-21kworker/0:0+events20:48:180
169933499249212,2477cyclictest1720388-21kworker/0:0+events20:15:380
169934099249012,2474cyclictest1708922-21kworker/2:2+events19:38:162
169933499249012,2475cyclictest1770144-21kworker/0:1+events22:48:210
169933499249012,2475cyclictest1770144-21kworker/0:1+events22:48:210
169933499248912,2473cyclictest1790860-21kworker/0:2+events23:57:540
169933499248811,2473cyclictest1763922-21kworker/0:1+events22:36:110
169934099248712,2472cyclictest1734624-21kworker/2:2+events20:58:352
169934499248612,2471cyclictest1744270-21kworker/3:1+events21:48:383
169934099248512,2469cyclictest1702903-21kworker/2:1+events19:22:262
169933499248512,2469cyclictest1770144-21kworker/0:1+events23:21:030
169933499248511,2471cyclictest1744358-21kworker/0:2+events21:39:460
169934099248412,2468cyclictest1724723-21kworker/2:1+events20:28:492
169934099248411,2469cyclictest1786391-21kworker/2:2+events23:47:172
169933499248410,2470cyclictest1692524-21kworker/0:2+events19:30:340
169933499248212,2466cyclictest1768545-21kworker/0:0+events22:43:020
169933699248012,2464cyclictest1734982-21kworker/1:0+events21:01:161
169933499248012,2466cyclictest1790860-21kworker/0:2+events00:00:100
169933499248012,2464cyclictest1800684-21kworker/0:2+events00:22:090
169933499248011,2465cyclictest1739381-21kworker/0:1+events21:26:110
169933499247912,2463cyclictest1725364-21kworker/0:2+events20:37:580
169933499247810,2465cyclictest1786362-21kworker/0:1+events23:51:050
169933499247810,2464cyclictest1707907-21kworker/0:1+events19:54:190
169933699247712,2461cyclictest1768633-21kworker/1:0+events22:44:101
169933699247712,2461cyclictest1731560-21kworker/1:2+events20:50:351
169933699247711,2462cyclictest1763680-21kworker/1:0+events22:27:021
169933499247712,2461cyclictest1776666-21kworker/0:2+events23:10:480
169933499247711,2462cyclictest1739381-21kworker/0:1+events21:21:370
16993369924756,2465cyclictest1705734-21kworker/1:1+events19:39:251
169933499247412,2460cyclictest1784727-21kworker/0:0+events23:35:490
169933699247212,2456cyclictest1734982-21kworker/1:0+events21:23:111
169933699247111,2456cyclictest1705734-21kworker/1:1+events19:42:531
169934099247011,2455cyclictest1736336-21kworker/2:0+events21:28:072
169933699246911,2454cyclictest1755589-21kworker/1:2+events22:17:541
169934099246812,2452cyclictest1720658-21kworker/2:2+events20:14:292
169933499246812,2452cyclictest1796302-21kworker/0:0+events00:13:270
169933499246511,2450cyclictest1796302-21kworker/0:0+events00:16:050
169933499246412,2449cyclictest1805402-21kworker/0:2+events00:38:290
169933699246212,2447cyclictest1770391-21kworker/1:1+events23:06:331
169933499246211,2447cyclictest1746223-21kworker/0:1+events21:34:310
169933699245812,2442cyclictest1705734-21kworker/1:1+events19:30:591
169933499245111,2437cyclictest1802556-21kworker/0:0+events00:31:370
169934099244712,2432cyclictest1747585-21kworker/2:0+events21:45:552
169934099244711,2432cyclictest1720658-21kworker/2:2+events20:36:502
169934099244612,2430cyclictest1739564-21kworker/2:2+events21:23:342
169934499244512,2429cyclictest1799267-21kworker/3:2+events00:21:453
169933699243912,2423cyclictest1792641-21kworker/1:2+events00:00:331
169934099243312,2417cyclictest1707281-21kworker/2:1+events19:40:582
169934099243310,2419cyclictest1800655-21kworker/2:2+events00:26:212
169933699242812,2413cyclictest1749331-21kworker/1:1+events21:43:381
16993409924247,2414cyclictest1712180-21kworker/2:2+events20:00:472
169934499242213,2405cyclictest1728360-21kworker/3:2+events20:41:483
169934099242212,2406cyclictest1739564-21kworker/2:2+events21:31:502
169934099242112,2405cyclictest1792486-21kworker/2:2+events00:03:542
169934499242011,2405cyclictest1728360-21kworker/3:2+events20:47:333
169933699241611,2401cyclictest1741252-21kworker/1:2+events21:51:411
169934499241512,2399cyclictest1790889-21kworker/3:0+events00:11:103
16993449924129,2399cyclictest1719058-21kworker/3:2+events20:09:563
16993449924119,2398cyclictest1723882-21kworker/3:1+events20:30:443
169934499241112,2396cyclictest1768161-21kworker/3:0+events22:47:583
169934499241112,2396cyclictest1768161-21kworker/3:0+events22:47:583
169933699241110,2398cyclictest1725217-21kworker/1:2+events20:27:201
169934499241012,2394cyclictest1722236-21kworker/3:2+events20:22:503
169934499240912,2394cyclictest1790889-21kworker/3:0+events23:57:093
169934499240912,2393cyclictest1773348-21kworker/3:2+events23:11:113
169934499240912,2393cyclictest1723882-21kworker/3:1+events20:25:523
169934499240910,2396cyclictest1777943-21kworker/3:0+events23:22:543
169933699240912,2393cyclictest1731560-21kworker/1:2+events20:57:281
169933699240812,2393cyclictest1713837-21kworker/1:1+events19:53:111
169934499240711,2392cyclictest1741279-21kworker/3:0+events21:27:223
169933499240610,2394cyclictest1757130-21kworker/0:2+events22:15:140
169934499240510,2391cyclictest1707343-21kworker/3:0+events19:54:423
169934099240312,2387cyclictest1781399-21kworker/2:1+events23:33:582
169934099240211,2387cyclictest1788014-21kworker/2:1+events23:54:062
169934099240112,2386cyclictest1739564-21kworker/2:2+events21:13:402
169933699240112,2385cyclictest1747615-21kworker/1:0+events21:38:131
169934099240012,2384cyclictest1767038-21kworker/2:0+events23:00:272
169933699239911,2386cyclictest1755589-21kworker/1:2+events22:30:061
169933699239911,2384cyclictest1726848-21kworker/1:0+events20:49:271
169933499239912,2383cyclictest1720388-21kworker/0:0+events20:23:130
169934099239812,2383cyclictest1784759-21kworker/2:0+events23:35:052
169934099239812,2382cyclictest1761929-21kworker/2:0+events22:23:112
169934099239811,2385cyclictest1788014-21kworker/2:1+events00:05:042
169934099239811,2383cyclictest1795995-21kworker/2:0+events00:14:142
169933699239812,2382cyclictest1786117-21kworker/1:0+events00:15:411
169933499239812,2383cyclictest1728718-21kworker/0:3+events20:41:270
169934099239712,2381cyclictest1767038-21kworker/2:0+events22:56:192
169934099239711,2384cyclictest1763801-21kworker/2:2+events22:35:032
169934099239711,2382cyclictest1802259-21kworker/2:0+events00:36:372
16993449923967,2385cyclictest1749478-21kworker/3:2+events21:55:503
169934099239612,2382cyclictest1778093-21kworker/2:0+events23:21:252
169934099239612,2381cyclictest1747585-21kworker/2:0+events21:41:192
169934099239611,2381cyclictest1720658-21kworker/2:2+events20:32:382
169933699239612,2380cyclictest1755589-21kworker/1:2+events22:20:341
169933699239612,2380cyclictest1717161-21kworker/1:0+events20:03:501
169934499239312,2378cyclictest1758824-21kworker/3:1+events22:14:503
169934099239312,2378cyclictest1754050-21kworker/2:0+events22:00:472
169933699239312,2377cyclictest1734982-21kworker/1:0+events21:16:441
169933699239210,2378cyclictest1786117-21kworker/1:0+events23:46:321
169933699239112,2375cyclictest1720985-21kworker/1:1+events20:35:411
169934099239011,2376cyclictest1707281-21kworker/2:1+events19:48:352
169933699239012,2375cyclictest1794339-21kworker/1:1+events00:08:061
169933699239012,2374cyclictest1799026-21kworker/1:2+events00:24:051
169933699239012,2374cyclictest1741252-21kworker/1:2+events21:32:591
169933699239011,2375cyclictest1802231-21kworker/1:1+events00:39:121
169933699239011,2375cyclictest1766977-21kworker/1:2+events22:51:011
169934099238912,2373cyclictest1736336-21kworker/2:0+events21:04:142
16993369923889,2375cyclictest1741252-21kworker/1:2+events21:49:011
169933699238812,2373cyclictest1744152-21kworker/1:1+events21:28:511
169933699238811,2373cyclictest1786117-21kworker/1:0+events00:13:041
169934499238712,2372cyclictest1796024-21kworker/3:1+events00:18:443
16993369923879,2375cyclictest1778522-21kworker/1:2+events23:19:541
169933699238612,2370cyclictest1766977-21kworker/1:2+events22:46:271
169933699238612,2370cyclictest1766977-21kworker/1:2+events22:46:271
169933699238612,2370cyclictest1702429-21kworker/1:2+events19:27:071
169934499238512,2369cyclictest1799267-21kworker/3:2+events00:31:143
169934099238211,2367cyclictest1749208-21kworker/2:2+events21:59:592
169933699238112,2366cyclictest1766977-21kworker/1:2+events22:57:271
169933699238111,2367cyclictest1778522-21kworker/1:2+events23:50:181
169934099238012,2366cyclictest1699028-21kworker/2:2+events19:25:572
16993349923799,2366cyclictest1771754-21kworker/0:0+events22:53:410
169933699237510,2362cyclictest1770391-21kworker/1:1+events23:00:511
169933499237512,2359cyclictest1786362-21kworker/0:1+events23:48:010
169934099237411,2359cyclictest1760274-21kworker/2:2+events22:19:042
169933699236910,2355cyclictest1709074-21kworker/1:2+events19:59:431
169933499236811,2354cyclictest1770144-21kworker/0:1+events22:58:330
169934499235512,2339cyclictest1731625-21kworker/3:0+events20:53:173
169934499235212,2336cyclictest1736451-21kworker/3:2+events21:07:373
169934099235111,2336cyclictest1792486-21kworker/2:2+events23:57:302
169933699235111,2337cyclictest1702429-21kworker/1:2+events19:21:171
169934499235012,2334cyclictest1771630-21kworker/3:1+events22:52:333
169934499234912,2334cyclictest1702707-21kworker/3:2+events19:28:153
169934099234510,2331cyclictest1699028-21kworker/2:2+events19:14:022
169934499234312,2327cyclictest1720642-21kworker/3:1+events20:17:103
16993449923419,2329cyclictest1758824-21kworker/3:1+events22:20:103
169934499234112,2325cyclictest1707343-21kworker/3:0+events20:03:283
169933499233912,2325cyclictest1692524-21kworker/0:2+events19:40:120
169934499233810,2324cyclictest1783104-21kworker/3:1+events23:42:023
169934499233511,2321cyclictest1777943-21kworker/3:0+events23:16:333
169933699233412,2319cyclictest1750999-21kworker/1:0+events22:03:511
169933699233112,2315cyclictest1770391-21kworker/1:1+events23:14:381
169934499232914,2313cyclictest1749478-21kworker/3:2+events21:50:103
169934499232912,2314cyclictest1792517-21kworker/3:2+events00:06:593
169934499232911,2314cyclictest1731625-21kworker/3:0+events21:00:313
169934099232911,2315cyclictest1767038-21kworker/2:0+events22:51:472
169933499232912,2313cyclictest1707907-21kworker/0:1+events19:57:440
169934499232712,2312cyclictest1704393-21kworker/3:1+events19:34:253
16993349923279,2314cyclictest1753930-21kworker/0:1+events21:57:210
169934499232512,2310cyclictest1792517-21kworker/3:2+events00:01:393
169934499232512,2309cyclictest1697269-21kworker/3:0+events19:19:023
169934499232412,2308cyclictest1802629-21kworker/3:1+events00:35:513
169934499232412,2308cyclictest1746194-21kworker/3:2+events21:34:083
169934499232411,2309cyclictest1755556-21kworker/3:0+events22:03:063
169934499232411,2309cyclictest1744270-21kworker/3:1+events21:39:233
169934499232312,2307cyclictest1736451-21kworker/3:2+events21:22:473
169934499232212,2306cyclictest1707343-21kworker/3:0+events20:11:273
16993409923218,2310cyclictest1699028-21kworker/2:2+events19:15:562
169933699232111,2306cyclictest1778522-21kworker/1:2+events23:31:411
169933499232111,2307cyclictest1761994-21kworker/0:2+events22:34:410
169934499232012,2304cyclictest1786494-21kworker/3:2+events23:49:553
169934499232012,2304cyclictest1783104-21kworker/3:1+events23:34:203
169934499231910,2306cyclictest1768161-21kworker/3:0+events22:58:113
16993369923199,2307cyclictest1757250-21kworker/1:1+events22:11:471
169934499231712,2303cyclictest1707343-21kworker/3:0+events19:45:073
169934499231711,2303cyclictest1768161-21kworker/3:0+events22:42:393
169934499231312,2297cyclictest1725600-21kworker/3:0+events20:36:263
169933499231312,2298cyclictest1725364-21kworker/0:2+events20:34:330
16993449923129,2300cyclictest1702707-21kworker/3:2+events19:21:403
169934499231211,2297cyclictest1773348-21kworker/3:2+events23:02:013
169934499231111,2297cyclictest1783104-21kworker/3:1+events23:35:273
169933699230710,2294cyclictest1786117-21kworker/1:0+events23:43:321
169934499230311,2286cyclictest1731625-21kworker/3:0+events20:58:133
169934499230310,2289cyclictest1704393-21kworker/3:1+events19:42:093
169933499230310,2289cyclictest1736650-21kworker/0:2+events21:07:590
169934099230112,2286cyclictest1755768-21kworker/2:1+events22:12:342
169934099229412,2279cyclictest1767038-21kworker/2:0+events22:47:122
169934099229412,2279cyclictest1767038-21kworker/2:0+events22:47:122
16993369922938,2281cyclictest1799026-21kworker/1:2+events00:33:101
169934499229112,2276cyclictest1749478-21kworker/3:2+events22:08:233
169934099228011,2266cyclictest1786391-21kworker/2:2+events23:40:532
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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