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2026-02-10 - 14:46
[ 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 Tue Feb 10, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81850,0rcu_preempt10409-1kworker/0:3H11:24:430
81720,0rcu_preempt3-21ksoftirqd/007:59:590
10050720,0irq/346-48484002638-1kworker/0:3H12:20:020
81700,0rcu_preempt3-21ksoftirqd/007:09:460
81690,0rcu_preempt3-21ksoftirqd/011:37:180
10050690,0irq/346-484840041ktimersoftd/009:39:210
10050690,0irq/346-484840016304-1kworker/0:2H09:18:070
81650,0rcu_preempt3-21ksoftirqd/012:04:510
81650,0rcu_preempt3-21ksoftirqd/010:59:580
81650,0rcu_preempt3-21ksoftirqd/010:34:310
81640,0rcu_preempt3-21ksoftirqd/008:44:470
81630,0rcu_preempt3-21ksoftirqd/009:40:360
81630,0rcu_preempt17890-21kworker/0:107:59:210
81610,0rcu_preempt3-21ksoftirqd/010:52:260
81610,0rcu_preempt3-21ksoftirqd/007:04:470
81600,0rcu_preempt851-21rngd12:32:060
81600,0rcu_preempt3-21ksoftirqd/012:12:510
81590,0rcu_preempt3-21ksoftirqd/009:19:460
81590,0rcu_preempt3-21ksoftirqd/008:39:540
81590,0rcu_preempt3-21ksoftirqd/008:34:540
81580,0rcu_preempt3-21ksoftirqd/010:34:550
10050580,0irq/346-484840054-21kswapd010:56:271
10050580,0irq/346-484840014289-1kworker/0:3H12:35:500
81570,0rcu_preempt3-21ksoftirqd/012:14:530
81570,0rcu_preempt3-21ksoftirqd/011:39:440
81570,0rcu_preempt3-21ksoftirqd/008:49:550
81570,0rcu_preempt3-21ksoftirqd/008:29:560
81570,0rcu_preempt3-21ksoftirqd/008:16:380
81560,0rcu_preempt3-21ksoftirqd/011:59:460
10050560,0irq/346-484840054-21kswapd008:19:380
81550,0rcu_preempt3-21ksoftirqd/010:54:530
81550,0rcu_preempt3-21ksoftirqd/010:04:530
81550,0rcu_preempt3-21ksoftirqd/009:29:550
81550,0rcu_preempt3-21ksoftirqd/007:34:450
10050550,0irq/346-484840054-21kswapd009:15:081
10050550,0irq/346-484840011126-21ssh10:16:520
81540,0rcu_preempt3-21ksoftirqd/011:46:570
81540,0rcu_preempt3-21ksoftirqd/009:13:310
81540,0rcu_preempt15521-21ntpq07:49:520
10050540,0irq/346-484840054-21kswapd012:16:421
10050540,0irq/346-484840054-21kswapd010:52:421
10050540,0irq/346-484840054-21kswapd010:19:421
81530,0rcu_preempt3-21ksoftirqd/010:01:050
81530,0rcu_preempt3-21ksoftirqd/009:49:540
81530,0rcu_preempt3-21ksoftirqd/008:04:550
81530,0rcu_preempt19-21ksoftirqd/110:59:321
10050530,0irq/346-484840054-21kswapd011:20:170
10050530,0irq/346-484840054-21kswapd009:33:401
10050530,0irq/346-484840054-21kswapd009:13:061
10050530,0irq/346-484840020007-1kworker/1:0H12:37:371
10050530,0irq/346-48484000-21swapper/010:21:300
81520,0rcu_preempt6322-21meminfo10:44:520
81520,0rcu_preempt3-21ksoftirqd/011:56:080
81520,0rcu_preempt3-21ksoftirqd/011:11:000
81520,0rcu_preempt3-21ksoftirqd/010:39:440
81520,0rcu_preempt3-21ksoftirqd/010:24:510
81520,0rcu_preempt3-21ksoftirqd/009:44:520
81520,0rcu_preempt3-21ksoftirqd/007:14:540
81520,0rcu_preempt3-21ksoftirqd/007:14:540
10050520,0irq/346-48484003-21ksoftirqd/007:39:330
81510,0rcu_preempt3-21ksoftirqd/008:25:020
81510,0rcu_preempt2914-21apt-get11:14:420
81510,0rcu_preempt19-21ksoftirqd/108:14:591
81510,0rcu_preempt19-21ksoftirqd/108:04:301
10050510,0irq/346-484840054-21kswapd010:27:021
10050510,0irq/346-484840054-21kswapd007:59:311
81500,0rcu_preempt3-21ksoftirqd/010:32:150
81500,0rcu_preempt3-21ksoftirqd/010:09:570
81500,0rcu_preempt3-21ksoftirqd/009:54:540
81500,0rcu_preempt3-21ksoftirqd/009:04:520
81500,0rcu_preempt3-21ksoftirqd/008:59:570
81500,0rcu_preempt19-21ksoftirqd/109:34:521
10050500,0irq/346-484840054-21kswapd012:27:461
10050500,0irq/346-484840054-21kswapd011:29:520
10050500,0irq/346-484840026527-21ssh11:38:221
10050500,0irq/346-484840016304-1kworker/0:2H09:26:100
10050500,0irq/346-48484000-21swapper/011:09:140
81490,0rcu_preempt3-21ksoftirqd/011:49:490
81490,0rcu_preempt3-21ksoftirqd/008:09:530
81490,0rcu_preempt3-21ksoftirqd/007:48:330
81490,0rcu_preempt1567-21cyclictest08:09:421
10050490,0irq/346-484840095802sleep012:26:130
10050490,0irq/346-484840054-21kswapd010:01:211
10050490,0irq/346-48484000-21swapper/112:19:411
81480,0rcu_preempt8665-21diskmemload12:09:531
10050480,0irq/346-484840054-21kswapd011:48:541
10050480,0irq/346-48484005053-1kworker/1:0H09:01:201
81470,0rcu_preempt3-21ksoftirqd/008:54:400
81470,0rcu_preempt19-21ksoftirqd/111:09:501
10050470,0irq/346-484840027478-21ssh11:06:041
81460,0rcu_preempt19-21ksoftirqd/109:24:481
81460,0rcu_preempt19-21ksoftirqd/108:19:321
10050460,0irq/346-484840054-21kswapd011:52:061
10050460,0irq/346-484840054-21kswapd011:18:211
9950450,0irq/345-4848400851-21rngd09:58:381
81450,0rcu_preempt19-21ksoftirqd/110:18:421
81450,0rcu_preempt19-21ksoftirqd/107:34:431
10050450,0irq/346-48484007118-21ssh10:45:181
10050450,0irq/346-484840015308-21ssh11:26:381
81440,0rcu_preempt19-21ksoftirqd/112:29:421
81440,0rcu_preempt19-21ksoftirqd/110:09:591
10050440,0irq/346-48484004855-21ping07:19:340
10050440,0irq/346-484840020612-21ssh09:54:121
81430,0rcu_preempt19-21ksoftirqd/107:44:411
81430,0rcu_preempt19-21ksoftirqd/107:20:011
81430,0rcu_preempt1567-21cyclictest10:04:471
10050430,0irq/346-484840010694-21ssh09:44:111
81420,0rcu_preempt19-21ksoftirqd/112:04:501
81420,0rcu_preempt19-21ksoftirqd/110:39:581
81420,0rcu_preempt19-21ksoftirqd/110:32:401
81420,0rcu_preempt19-21ksoftirqd/110:32:401
81420,0rcu_preempt19-21ksoftirqd/107:24:501
81420,0rcu_preempt19-21ksoftirqd/107:24:501
10050420,0irq/346-48484004855-21ping07:30:481
10050420,0irq/346-48484004513-1kworker/1:1H07:19:311
10050420,0irq/346-48484004513-1kworker/1:1H07:19:311
81410,0rcu_preempt19-21ksoftirqd/111:40:391
81410,0rcu_preempt19-21ksoftirqd/111:29:431
81410,0rcu_preempt19-21ksoftirqd/109:19:471
10050410,0irq/346-484840013571-1kworker/1:0H09:46:521
81400,0rcu_preempt19-21ksoftirqd/111:54:421
81400,0rcu_preempt19-21ksoftirqd/111:19:431
81400,0rcu_preempt19-21ksoftirqd/108:49:441
81400,0rcu_preempt19-21ksoftirqd/108:24:571
81400,0rcu_preempt19-21ksoftirqd/107:39:471
81400,0rcu_preempt19-21ksoftirqd/107:08:341
156899402,0cyclictest4855-21ping07:29:590
10050400,0irq/346-48484000-21swapper/111:59:371
81390,0rcu_preempt19-21ksoftirqd/110:34:421
81390,0rcu_preempt19-21ksoftirqd/107:09:411
10050390,0irq/346-48484008656-21cron09:09:301
10050390,0irq/346-484840030853-1kworker/1:1H08:39:401
81380,0rcu_preempt19-21ksoftirqd/108:44:581
81380,0rcu_preempt19-21ksoftirqd/108:39:301
81380,0rcu_preempt19-21ksoftirqd/108:32:541
1568993811,0cyclictest0-21swapper/007:29:300
1568993811,0cyclictest0-21swapper/007:29:300
81370,0rcu_preempt19-21ksoftirqd/108:54:451
81370,0rcu_preempt19-21ksoftirqd/108:04:311
81370,0rcu_preempt19-21ksoftirqd/107:49:551
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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