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2026-02-18 - 17:17
[ 290.152] (II) VESA: driver for VESA chipsets: vesa

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #a, slot #5

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 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
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rackaslot5s.osadl.org (updated Wed Feb 18, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811030,0rcu_preempt3-21ksoftirqd/010:14:460
81720,0rcu_preempt19-21ksoftirqd/110:13:371
81720,0rcu_preempt19-21ksoftirqd/109:44:471
81720,0rcu_preempt19-21ksoftirqd/108:24:541
81720,0rcu_preempt0-21swapper/107:09:371
81710,0rcu_preempt27558-21kworker/1:111:53:421
81700,0rcu_preempt0-21swapper/112:10:061
81700,0rcu_preempt0-21swapper/110:59:381
10050700,0irq/346-48484004920-1kworker/0:1H10:22:360
81690,0rcu_preempt54-21kswapd011:14:561
81680,0rcu_preempt54-21kswapd012:18:111
81680,0rcu_preempt29105-21kworker/1:110:00:241
81680,0rcu_preempt19-21ksoftirqd/111:06:491
81680,0rcu_preempt19-21ksoftirqd/109:09:341
10050680,0irq/346-4848400171rcuc/109:15:181
81660,0rcu_preempt3-21ksoftirqd/012:01:590
81660,0rcu_preempt19-21ksoftirqd/111:55:271
81650,0rcu_preempt19-21ksoftirqd/111:24:591
81650,0rcu_preempt19-21ksoftirqd/110:52:381
81640,0rcu_preempt19-21ksoftirqd/111:22:311
81640,0rcu_preempt19-21ksoftirqd/111:22:311
81630,0rcu_preempt3-21ksoftirqd/011:02:280
81630,0rcu_preempt19-21ksoftirqd/110:42:231
81630,0rcu_preempt19-21ksoftirqd/109:32:561
81620,0rcu_preempt3-21ksoftirqd/012:32:440
81620,0rcu_preempt3-21ksoftirqd/011:49:400
81620,0rcu_preempt19-21ksoftirqd/111:43:071
81620,0rcu_preempt19-21ksoftirqd/111:43:071
81620,0rcu_preempt19-21ksoftirqd/110:38:091
81620,0rcu_preempt19-21ksoftirqd/107:39:321
81620,0rcu_preempt19-21ksoftirqd/107:39:201
10050620,0irq/346-48484005912-1kworker/0:0H09:25:500
10050620,0irq/346-484840054-21kswapd009:37:391
81610,0rcu_preempt3-21ksoftirqd/010:05:420
81610,0rcu_preempt30226-21ssh11:48:481
81610,0rcu_preempt19-21ksoftirqd/110:26:001
316612610,0chrt10050irq/346-484840007:30:210
81600,0rcu_preempt3-21ksoftirqd/009:20:400
81600,0rcu_preempt19-21ksoftirqd/112:23:231
81600,0rcu_preempt19-21ksoftirqd/112:01:501
81600,0rcu_preempt19-21ksoftirqd/110:54:351
81600,0rcu_preempt19-21ksoftirqd/110:21:381
81600,0rcu_preempt19-21ksoftirqd/109:58:441
81600,0rcu_preempt19-21ksoftirqd/108:31:521
81600,0rcu_preempt19-21ksoftirqd/107:49:491
81590,0rcu_preempt3-21ksoftirqd/010:32:440
81590,0rcu_preempt3-21ksoftirqd/010:32:440
81590,0rcu_preempt3-21ksoftirqd/007:49:520
81590,0rcu_preempt19-21ksoftirqd/111:30:041
81590,0rcu_preempt19-21ksoftirqd/110:14:391
81590,0rcu_preempt19-21ksoftirqd/109:22:131
81590,0rcu_preempt19-21ksoftirqd/109:04:341
81580,0rcu_preempt19-21ksoftirqd/109:51:281
81580,0rcu_preempt19-21ksoftirqd/109:41:361
81570,0rcu_preempt54-21kswapd009:34:090
81570,0rcu_preempt19-21ksoftirqd/110:07:331
81570,0rcu_preempt19-21ksoftirqd/108:44:501
81560,0rcu_preempt3-21ksoftirqd/010:43:310
81560,0rcu_preempt3-21ksoftirqd/009:54:380
81560,0rcu_preempt3-21ksoftirqd/008:09:470
81560,0rcu_preempt19-21ksoftirqd/112:34:331
81550,0rcu_preempt19-21ksoftirqd/112:09:201
81550,0rcu_preempt19-21ksoftirqd/110:29:451
81550,0rcu_preempt19-21ksoftirqd/110:29:451
81550,0rcu_preempt19-21ksoftirqd/108:20:081
81550,0rcu_preempt19-21ksoftirqd/108:15:481
81550,0rcu_preempt19-21ksoftirqd/108:07:271
81550,0rcu_preempt19-21ksoftirqd/108:03:581
81540,0rcu_preempt19-21ksoftirqd/111:09:461
81540,0rcu_preempt19-21ksoftirqd/108:09:501
10050540,0irq/346-48484000-21swapper/007:17:340
10050540,0irq/346-48484000-21swapper/007:17:340
81530,0rcu_preempt3-21ksoftirqd/011:24:390
81530,0rcu_preempt19-21ksoftirqd/112:29:431
81530,0rcu_preempt19-21ksoftirqd/110:44:481
81530,0rcu_preempt1762-21ssh12:24:381
10050530,0irq/346-48484007858-21latency_hist07:59:240
10050530,0irq/346-48484003-21ksoftirqd/007:19:420
10050530,0irq/346-48484000-21swapper/011:16:420
81520,0rcu_preempt19-21ksoftirqd/108:49:471
23817995210,0cyclictest8527-21ping08:09:230
10050520,0irq/346-484840023822-21apt-get12:14:340
10050520,0irq/346-484840021048-21ssh11:39:380
10050520,0irq/346-484840021048-21ssh11:39:380
10050520,0irq/346-484840019292-21ssh11:05:140
81510,0rcu_preempt54-21kswapd009:26:531
81510,0rcu_preempt3-21ksoftirqd/009:09:460
81510,0rcu_preempt19-21ksoftirqd/107:14:461
81510,0rcu_preempt19-21ksoftirqd/107:14:461
10050510,0irq/346-48484008981-1kworker/0:0H09:59:470
10050510,0irq/346-4848400889-21ssh11:19:430
10050510,0irq/346-4848400889-21ssh11:19:430
10050510,0irq/346-4848400851-21rngd09:54:140
10050510,0irq/346-48484004873-1kworker/0:0H10:54:340
9950500,0irq/345-48484000-21swapper/012:07:340
81500,0rcu_preempt3-21ksoftirqd/011:44:390
81500,0rcu_preempt3-21ksoftirqd/008:14:480
81500,0rcu_preempt19-21ksoftirqd/111:39:091
81490,0rcu_preempt3-21ksoftirqd/009:14:380
81490,0rcu_preempt22310-21apt-get07:04:340
10050490,0irq/346-4848400851-21rngd12:23:570
81480,0rcu_preempt3-21ksoftirqd/008:29:540
81480,0rcu_preempt3-21ksoftirqd/008:24:240
81480,0rcu_preempt19-21ksoftirqd/108:54:461
81480,0rcu_preempt19-21ksoftirqd/108:39:441
81480,0rcu_preempt19-21ksoftirqd/107:57:451
81480,0rcu_preempt19-21ksoftirqd/107:46:071
81480,0rcu_preempt19-21ksoftirqd/107:46:071
2381799487,0cyclictest27107-21ping07:39:280
10050480,0irq/346-484840054-21kswapd009:39:230
10050480,0irq/346-48484000-21swapper/008:39:340
10050480,0irq/346-48484000-21swapper/007:39:220
81470,0rcu_preempt3-21ksoftirqd/012:24:390
81470,0rcu_preempt3-21ksoftirqd/011:29:400
81470,0rcu_preempt27107-21ping07:24:421
81470,0rcu_preempt19-21ksoftirqd/107:30:091
10050470,0irq/346-484840029086-21ssh09:39:300
81460,0rcu_preempt3-21ksoftirqd/009:44:490
81460,0rcu_preempt3-21ksoftirqd/008:19:480
81460,0rcu_preempt3-21ksoftirqd/007:09:330
81460,0rcu_preempt23816-21cyclictest10:34:340
10050460,0irq/346-484840021376-21ssh12:11:370
10050460,0irq/346-484840021190-1kworker/0:3H08:59:340
10050460,0irq/346-484840021190-1kworker/0:3H08:59:340
81450,0rcu_preempt54-21kswapd011:55:380
81450,0rcu_preempt3-21ksoftirqd/010:44:410
81450,0rcu_preempt19-21ksoftirqd/108:34:471
81450,0rcu_preempt19-21ksoftirqd/107:22:171
81440,0rcu_preempt3-21ksoftirqd/010:09:450
81440,0rcu_preempt19-21ksoftirqd/108:59:481
81440,0rcu_preempt19-21ksoftirqd/108:59:481
81440,0rcu_preempt19-21ksoftirqd/107:07:301
10050440,0irq/346-48484007502-1kworker/0:1H07:59:340
81420,0rcu_preempt3-21ksoftirqd/012:34:320
81420,0rcu_preempt3-21ksoftirqd/010:49:230
81420,0rcu_preempt3-21ksoftirqd/009:04:450
81420,0rcu_preempt3-21ksoftirqd/008:45:240
81420,0rcu_preempt3-21ksoftirqd/008:36:320
81420,0rcu_preempt26127-21apt-get08:54:320
10050420,0irq/346-484840011475-21sshd10:25:300
81410,0rcu_preempt3-21ksoftirqd/011:34:510
81410,0rcu_preempt3-21ksoftirqd/011:09:380
81400,0rcu_preempt3-21ksoftirqd/008:51:310
81400,0rcu_preempt3-21ksoftirqd/007:24:530
81390,0rcu_preempt27107-21ping07:49:230
81390,0rcu_preempt27107-21ping07:49:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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