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2026-08-20 - 00:04

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #8, slot #6

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 or here to proceed to next system.
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.
Unexpectedly long latencies may be caused by SMIs
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 rack8slot6s.osadl.org (updated Wed Aug 19, 2026 00:43:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
304929910491048,1cyclictest22669-21kworker/0:0+events23:25:330
304929910421041,1cyclictest14718-21kworker/0:1+events20:22:560
305069910391037,2cyclictest8896-21turbostat20:59:553
305069910371036,1cyclictest4365-21kworker/3:1+events23:54:483
304979910321031,1cyclictest3722-21kworker/1:2+events19:22:361
304979910301029,1cyclictest22920-21kworker/1:1+events20:12:331
304929910291026,3cyclictest31928-21turbostat23:09:550
304929910291026,3cyclictest31928-21turbostat23:09:550
305029910281027,1cyclictest26076-21kworker/2:1+events19:55:512
305069910241023,1cyclictest28238-21kworker/3:0+events22:48:493
304929910231022,1cyclictest10884-21kworker/0:0+events21:00:440
305069910221019,3cyclictest8814-21turbostat00:24:543
305069910211020,1cyclictest4365-21kworker/3:1+events23:30:223
304979910201019,1cyclictest3722-21kworker/1:2+events19:49:161
304929910201018,2cyclictest14718-21kworker/0:1+events20:27:110
304929910181015,3cyclictest19903-21turbostat21:19:550
304929910141012,2cyclictest7409-21turbostat22:44:560
305069910131012,1cyclictest10101-21kworker/3:0+events21:54:343
305029910101009,1cyclictest3093-21kworker/2:0+events20:41:272
305029910081007,1cyclictest5404-21kworker/2:1+events00:03:262
305029910071005,2cyclictest22839-21turbostat21:54:562
305029910041003,1cyclictest3093-21kworker/2:0+events20:50:212
305069910011000,1cyclictest11189-21kworker/3:0+events23:19:003
30492991001998,1cyclictest5627-21kworker/0:1+events22:56:510
3050299998997,1cyclictest5404-21kworker/2:1+events00:10:432
3050299998995,1cyclictest5404-21kworker/2:1+events00:07:102
3050699997996,1cyclictest4910-21kworker/3:1+events21:59:063
3050699997996,1cyclictest10137-21kworker/3:2+events22:10:423
3050699997996,1cyclictest10101-21kworker/3:0+events21:49:253
3050699997996,1cyclictest10101-21kworker/3:0+events21:38:413
3050299997996,1cyclictest5404-21kworker/2:1+events00:24:042
3050699996994,2cyclictest32750-21turbostat22:04:553
3050699995994,1cyclictest8990-21kworker/3:0+events23:47:083
3050699995994,1cyclictest3905-21kworker/3:2+events23:43:163
3049799995994,1cyclictest3722-21kworker/1:2+events20:06:491
3050699994993,1cyclictest18617-21kworker/3:2+events21:28:153
3050299993992,1cyclictest14845-21kworker/2:2+events19:54:542
3050699992991,1cyclictest28238-21kworker/3:0+events22:32:453
3050299992991,1cyclictest14845-21kworker/2:2+events20:46:282
3049799992990,2cyclictest819-21turbostat20:39:551
3049299992991,1cyclictest408-21kworker/0:2+events21:14:330
3049299992991,1cyclictest19919-21kworker/0:2+events00:26:480
3050699991990,1cyclictest4365-21kworker/3:1+events23:39:443
3050299991989,2cyclictest5404-21kworker/2:1+events00:16:042
3050699990990,0cyclictest18617-21kworker/3:2+events21:30:443
3049299990989,1cyclictest22379-21kworker/0:0+events22:06:460
3050699989989,0cyclictest10137-21kworker/3:2+events22:19:203
3050699989988,1cyclictest4365-21kworker/3:1+events23:20:553
3050699989987,2cyclictest14950-21turbostat21:14:553
3049799989988,1cyclictest12371-21kworker/1:0+events19:42:521
3049299987986,1cyclictest19919-21kworker/0:2+events00:39:210
3050699986985,1cyclictest8990-21kworker/3:0+events23:58:333
3050699985984,1cyclictest4910-21kworker/3:1+events22:24:243
3050699985982,2cyclictest17177-21turbostat22:54:553
3049299984983,1cyclictest408-21kworker/0:2+events21:07:570
3049299984983,1cyclictest24679-21kworker/0:2+events20:19:230
3050699983982,1cyclictest4910-21kworker/3:1+events21:41:273
3049299983982,1cyclictest5627-21kworker/0:1+events22:36:080
3049299983981,1cyclictest2536-21kworker/0:1+events20:36:580
3050699982981,1cyclictest4365-21kworker/3:1+events23:13:363
3050699982981,1cyclictest18617-21kworker/3:2+events21:20:553
3050699981980,1cyclictest28238-21kworker/3:0+events22:28:403
3049299981980,1cyclictest19919-21kworker/0:2+events00:31:060
3050299979978,1cyclictest14845-21kworker/2:2+events20:55:222
3050699975974,1cyclictest4357-21kworker/3:0+events20:00:203
3049299974973,1cyclictest30401-21kworker/0:0+events20:33:500
3049799973972,1cyclictest5773-21kworker/1:0+events19:34:321
3049799973971,2cyclictest5301-21turbostat22:09:551
3050699948947,1cyclictest12609-21turbostat19:49:553
3049299934932,2cyclictest4448-21turbostat23:14:560
3049799924924,0cyclictest26906-21kworker/1:1+events19:19:021
3049799921920,1cyclictest5773-21kworker/1:0+events19:36:041
3049799920919,1cyclictest27259-21kworker/1:2+events23:08:291
3049799920919,1cyclictest27259-21kworker/1:2+events23:08:281
3049799917916,1cyclictest10476-21kworker/1:0+events19:14:031
3049799915914,1cyclictest20651-21kworker/1:0+events23:03:141
3049799910909,1cyclictest3722-21kworker/1:2+events19:28:211
3050699908906,2cyclictest21999-21turbostat22:59:563
3049299908906,2cyclictest16624-21turbostat19:59:550
3050299898895,3cyclictest14325-21turbostat23:24:552
3050699891889,2cyclictest22693-21turbostat20:14:553
3049799872867,3cyclictest29428-21turbostat23:39:551
3049299679677,2cyclictest29951-21turbostat22:34:550
3050699663660,3cyclictest16624-21turbostat19:59:563
3049299647645,2cyclictest22693-21turbostat20:14:550
3050299623620,3cyclictest819-21turbostat20:39:552
3049799600596,4cyclictest21999-21turbostat22:59:561
3049299594592,2cyclictest8896-21turbostat20:59:550
3050699592590,2cyclictest5301-21turbostat22:09:563
3050699582580,2cyclictest31928-21turbostat23:09:563
3050699582580,2cyclictest31928-21turbostat23:09:553
3049299575574,1cyclictest8814-21turbostat00:24:540
3050699570569,1cyclictest19903-21turbostat21:19:563
3050699567566,1cyclictest7409-21turbostat22:44:563
3049799566563,3cyclictest18639-21turbostat20:04:561
3049299550549,1cyclictest32750-21turbostat22:04:550
3050699544543,1cyclictest19250-21turbostat23:29:563
3049299538537,1cyclictest17177-21turbostat22:54:550
3049299516513,3cyclictest14325-21turbostat23:24:550
3050299515513,2cyclictest12609-21turbostat19:49:552
3050299499498,1cyclictest16592-21turbostat23:59:552
30502992222,0cyclictest439-21hwrng22:47:522
30502992121,0cyclictest439-21hwrng21:25:562
30502992020,0cyclictest439-21hwrng21:37:132
30502991919,0cyclictest67850irq/123-lan21:16:072
30502991918,1cyclictest67850irq/123-lan23:35:182
30502991918,1cyclictest67850irq/123-lan22:57:592
30502991918,1cyclictest67850irq/123-lan21:30:142
30502991918,1cyclictest14845-21kworker/2:2+events22:44:112
30502991818,0cyclictest67850irq/123-lan21:47:052
30502991818,0cyclictest439-21hwrng21:41:182
30502991817,1cyclictest67850irq/123-lan23:15:122
30502991817,1cyclictest67850irq/123-lan22:30:132
30502991817,1cyclictest67850irq/123-lan21:20:232
30502991817,1cyclictest67850irq/123-lan00:35:162
30502991816,2cyclictest14845-21kworker/2:2+events23:07:332
30502991816,2cyclictest14845-21kworker/2:2+events23:07:322
30502991717,0cyclictest67850irq/123-lan23:50:302
30502991717,0cyclictest67850irq/123-lan23:30:002
30502991717,0cyclictest67850irq/123-lan23:13:212
30502991717,0cyclictest67850irq/123-lan22:53:242
30502991717,0cyclictest67850irq/123-lan22:13:432
30502991717,0cyclictest67850irq/123-lan22:00:562
30502991717,0cyclictest67850irq/123-lan20:33:132
30502991716,1cyclictest67850irq/123-lan23:49:342
30502991716,1cyclictest67850irq/123-lan23:42:452
30502991716,1cyclictest67850irq/123-lan23:27:142
30502991716,1cyclictest67850irq/123-lan23:00:142
30502991716,1cyclictest67850irq/123-lan22:21:582
30502991716,1cyclictest67850irq/123-lan19:30:132
30502991716,1cyclictest67850irq/123-lan00:30:162
30502991716,1cyclictest67850irq/123-lan00:27:322
30502991616,0cyclictest67850irq/123-lan19:35:202
30502991616,0cyclictest439-21hwrng22:35:352
30502991615,1cyclictest67850irq/123-lan22:25:082
30502991615,1cyclictest67850irq/123-lan22:05:182
30502991615,1cyclictest67850irq/123-lan21:56:142
30502991615,1cyclictest67850irq/123-lan21:12:002
30502991614,1cyclictest67850irq/123-lan22:15:122
30497991616,0cyclictest439-21hwrng23:34:581
30497991616,0cyclictest439-21hwrng00:12:511
30492991616,0cyclictest439-21hwrng23:49:190
30506991515,0cyclictest439-21hwrng23:00:093
30506991515,0cyclictest439-21hwrng20:50:063
30506991515,0cyclictest439-21hwrng20:42:563
30506991515,0cyclictest439-21hwrng20:38:503
30506991515,0cyclictest439-21hwrng20:25:323
30506991515,0cyclictest439-21hwrng20:23:293
30506991515,0cyclictest439-21hwrng20:19:233
30506991515,0cyclictest439-21hwrng20:08:073
30506991515,0cyclictest439-21hwrng19:54:483
30506991515,0cyclictest439-21hwrng19:24:053
30506991515,0cyclictest439-21hwrng00:19:013
30506991515,0cyclictest439-21hwrng00:01:353
30502991515,0cyclictest67850irq/123-lan20:20:202
30502991515,0cyclictest439-21hwrng21:04:272
30502991515,0cyclictest439-21hwrng20:29:372
30502991515,0cyclictest439-21hwrng20:04:022
30502991515,0cyclictest439-21hwrng19:14:542
30502991514,1cyclictest67850irq/123-lan20:05:202
30502991514,1cyclictest67850irq/123-lan19:20:072
30497991515,0cyclictest439-21hwrng23:46:141
30497991515,0cyclictest439-21hwrng23:29:521
30497991515,0cyclictest439-21hwrng22:48:531
30497991515,0cyclictest439-21hwrng22:39:401
30497991515,0cyclictest439-21hwrng22:30:271
30497991515,0cyclictest439-21hwrng22:29:271
30497991515,0cyclictest439-21hwrng22:01:471
30497991515,0cyclictest439-21hwrng21:54:371
30497991515,0cyclictest439-21hwrng21:34:081
30497991515,0cyclictest439-21hwrng21:18:461
30497991515,0cyclictest439-21hwrng20:33:441
30497991515,0cyclictest439-21hwrng20:16:201
30497991515,0cyclictest439-21hwrng19:56:511
30497991515,0cyclictest439-21hwrng00:35:231
30492991515,0cyclictest439-21hwrng23:32:550
30492991515,0cyclictest439-21hwrng22:28:250
30492991515,0cyclictest439-21hwrng22:22:160
30492991515,0cyclictest439-21hwrng22:15:060
30492991515,0cyclictest439-21hwrng22:13:040
30492991515,0cyclictest439-21hwrng21:43:220
30492991515,0cyclictest439-21hwrng21:38:140
30492991515,0cyclictest439-21hwrng21:28:000
30492991515,0cyclictest439-21hwrng21:23:550
30492991515,0cyclictest439-21hwrng20:53:110
30492991515,0cyclictest439-21hwrng20:47:020
30492991515,0cyclictest439-21hwrng20:03:010
30492991515,0cyclictest439-21hwrng19:54:490
30492991515,0cyclictest439-21hwrng19:40:280
30492991515,0cyclictest439-21hwrng19:36:230
30492991515,0cyclictest439-21hwrng19:33:180
30492991515,0cyclictest439-21hwrng19:24:050
30492991515,0cyclictest439-21hwrng00:11:500
30492991515,0cyclictest439-21hwrng00:07:440
30492991515,0cyclictest439-21hwrng00:00:350
30506991414,0cyclictest439-21hwrng22:37:383
30506991414,0cyclictest439-21hwrng21:05:283
30506991414,0cyclictest439-21hwrng21:00:223
30506991414,0cyclictest439-21hwrng20:47:033
30506991414,0cyclictest439-21hwrng19:35:213
30506991414,0cyclictest439-21hwrng19:32:173
30506991414,0cyclictest439-21hwrng19:28:123
30506991414,0cyclictest439-21hwrng19:15:543
30506991414,0cyclictest439-21hwrng19:11:483
30506991414,0cyclictest439-21hwrng00:39:293
30506991414,0cyclictest439-21hwrng00:32:193
30506991414,0cyclictest439-21hwrng00:28:143
30506991414,0cyclictest439-21hwrng00:11:513
30506991414,0cyclictest439-21hwrng00:08:453
30502991414,0cyclictest439-21hwrng19:41:312
30502991414,0cyclictest439-21hwrng19:27:112
30502991413,1cyclictest67850irq/123-lan20:15:162
30502991413,1cyclictest67850irq/123-lan19:15:152
30497991414,0cyclictest439-21hwrng23:56:291
30497991414,0cyclictest439-21hwrng23:54:251
30497991414,0cyclictest439-21hwrng23:41:071
30497991414,0cyclictest439-21hwrng23:22:411
30497991414,0cyclictest439-21hwrng23:17:341
30497991414,0cyclictest439-21hwrng23:11:261
30497991414,0cyclictest439-21hwrng22:41:441
30497991414,0cyclictest439-21hwrng22:22:161
30497991414,0cyclictest439-21hwrng22:15:061
30497991414,0cyclictest439-21hwrng21:57:421
30497991414,0cyclictest439-21hwrng21:45:241
30497991414,0cyclictest439-21hwrng21:40:171
30497991414,0cyclictest439-21hwrng21:36:121
30497991414,0cyclictest439-21hwrng21:21:521
30497991414,0cyclictest439-21hwrng21:12:381
30497991414,0cyclictest439-21hwrng20:40:531
30497991414,0cyclictest439-21hwrng20:20:251
30497991414,0cyclictest439-21hwrng19:51:441
30497991414,0cyclictest439-21hwrng00:32:191
30497991414,0cyclictest439-21hwrng00:25:081
30497991414,0cyclictest439-21hwrng00:24:071
30497991414,0cyclictest439-21hwrng00:19:011
30497991414,0cyclictest439-21hwrng00:02:381
30492991414,0cyclictest439-21hwrng23:55:270
30492991414,0cyclictest439-21hwrng23:53:240
30492991414,0cyclictest439-21hwrng23:35:590
30492991414,0cyclictest439-21hwrng23:16:320
30492991414,0cyclictest439-21hwrng22:45:490
30492991414,0cyclictest439-21hwrng21:55:390
30492991414,0cyclictest439-21hwrng21:51:320
30492991414,0cyclictest439-21hwrng21:48:280
30492991414,0cyclictest439-21hwrng20:44:590
30492991414,0cyclictest439-21hwrng20:08:070
30492991414,0cyclictest439-21hwrng19:45:360
30492991414,0cyclictest439-21hwrng19:15:540
30502991313,0cyclictest439-21hwrng21:05:282
30502991313,0cyclictest439-21hwrng20:13:142
30497991313,0cyclictest439-21hwrng22:52:591
30497991313,0cyclictest439-21hwrng21:02:241
30497991313,0cyclictest439-21hwrng20:56:151
30497991313,0cyclictest439-21hwrng20:51:071
30497991313,0cyclictest439-21hwrng20:48:031
30497991313,0cyclictest439-21hwrng20:26:331
30497991313,0cyclictest439-21hwrng00:06:421
30492991313,0cyclictest439-21hwrng23:44:120
30492991313,0cyclictest439-21hwrng23:00:100
30492991313,0cyclictest439-21hwrng19:28:110
30492991313,0cyclictest439-21hwrng19:12:510
30492991313,0cyclictest439-21hwrng00:15:570
30506991212,0cyclictest439-21hwrng19:43:343
30497991212,0cyclictest439-21hwrng22:11:011
30497991212,0cyclictest439-21hwrng21:07:321
30492991212,0cyclictest439-21hwrng21:30:020
30506991111,0cyclictest439-21hwrng20:33:443
30497991111,0cyclictest439-21hwrng21:25:571
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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