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2026-01-14 - 05:40
[ 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 highest latencies:
System rackaslot5s.osadl.org (updated Wed Jan 14, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811300,0rcu_preempt3-21ksoftirqd/022:17:070
811080,0rcu_preempt3-21ksoftirqd/022:34:110
81910,0rcu_preempt18162-21kworker/0:223:59:210
81890,0rcu_preempt3-21ksoftirqd/000:29:070
81880,0rcu_preempt3-21ksoftirqd/023:43:210
81880,0rcu_preempt3-21ksoftirqd/020:30:090
81870,0rcu_preempt3-21ksoftirqd/023:50:070
81870,0rcu_preempt3-21ksoftirqd/021:19:560
81840,0rcu_preempt3-21ksoftirqd/021:49:350
81840,0rcu_preempt3-21ksoftirqd/000:00:070
81830,0rcu_preempt54-21kswapd023:45:070
81830,0rcu_preempt3-21ksoftirqd/000:20:240
81820,0rcu_preempt3-21ksoftirqd/022:24:570
81820,0rcu_preempt3-21ksoftirqd/021:51:070
81820,0rcu_preempt3-21ksoftirqd/000:31:070
81810,0rcu_preempt9141-21cut00:05:070
81810,0rcu_preempt3-21ksoftirqd/022:59:150
81810,0rcu_preempt3-21ksoftirqd/022:50:170
81810,0rcu_preempt3-21ksoftirqd/022:45:560
81810,0rcu_preempt3-21ksoftirqd/020:25:070
81810,0rcu_preempt3-21ksoftirqd/000:17:340
81800,0rcu_preempt3-21ksoftirqd/023:15:420
81800,0rcu_preempt16275-21kworker/0:122:09:050
81780,0rcu_preempt3-21ksoftirqd/023:13:400
81780,0rcu_preempt3-21ksoftirqd/023:01:100
81780,0rcu_preempt3-21ksoftirqd/022:23:370
81780,0rcu_preempt3-21ksoftirqd/020:16:360
81780,0rcu_preempt3-21ksoftirqd/020:11:000
81770,0rcu_preempt32512-21kworker/0:119:40:190
81770,0rcu_preempt3-21ksoftirqd/023:36:350
81770,0rcu_preempt3-21ksoftirqd/019:15:150
81770,0rcu_preempt3-21ksoftirqd/000:36:140
81770,0rcu_preempt3-21ksoftirqd/000:14:140
81760,0rcu_preempt32282-21diskmemload23:30:230
81760,0rcu_preempt3-21ksoftirqd/023:23:250
81760,0rcu_preempt3-21ksoftirqd/022:40:240
81760,0rcu_preempt3-21ksoftirqd/022:14:190
81750,0rcu_preempt3-21ksoftirqd/022:35:210
81750,0rcu_preempt3-21ksoftirqd/021:40:070
81750,0rcu_preempt3-21ksoftirqd/021:30:060
81750,0rcu_preempt16275-21kworker/0:121:29:300
81740,0rcu_preempt3-21ksoftirqd/021:35:370
81740,0rcu_preempt3-21ksoftirqd/020:04:190
81740,0rcu_preempt17621-21kworker/0:120:59:590
81730,0rcu_preempt3-21ksoftirqd/023:06:250
81730,0rcu_preempt3-21ksoftirqd/021:58:010
81730,0rcu_preempt3-21ksoftirqd/020:55:070
81730,0rcu_preempt3-21ksoftirqd/020:20:010
81730,0rcu_preempt3-21ksoftirqd/020:20:010
81720,0rcu_preempt3-21ksoftirqd/023:26:360
81720,0rcu_preempt3-21ksoftirqd/023:26:360
81720,0rcu_preempt3-21ksoftirqd/021:20:510
81720,0rcu_preempt28475-21ping19:45:140
81710,0rcu_preempt3-21ksoftirqd/022:00:220
81700,0rcu_preempt3-21ksoftirqd/020:45:140
81690,0rcu_preempt3-21ksoftirqd/021:05:240
10050680,0irq/346-484840019380-21ls22:35:211
9950670,0irq/345-484840028154-1kworker/1:0H19:26:431
9950650,0irq/345-484840019-21ksoftirqd/120:01:491
9950630,0irq/345-4848400181ktimersoftd/122:28:021
81620,0rcu_preempt3-21ksoftirqd/019:20:030
81610,0rcu_preempt3-21ksoftirqd/020:40:130
9950600,0irq/345-4848400181ktimersoftd/121:52:001
9950590,0irq/345-4848400171rcuc/123:38:261
81590,0rcu_preempt54-21kswapd022:10:071
81590,0rcu_preempt3-21ksoftirqd/020:05:150
9950580,0irq/345-4848400181ktimersoftd/122:34:011
9950580,0irq/345-4848400181ktimersoftd/100:12:131
10050580,0irq/346-484840054-21kswapd020:39:561
9950570,0irq/345-4848400181ktimersoftd/123:31:501
9950570,0irq/345-4848400181ktimersoftd/121:11:401
9950570,0irq/345-4848400181ktimersoftd/121:11:401
9950570,0irq/345-4848400171rcuc/121:19:071
9950560,0irq/345-4848400181ktimersoftd/100:23:561
9950550,0irq/345-48484002518899cyclictest22:05:141
9950550,0irq/345-48484002518899cyclictest21:40:181
10050550,0irq/346-48484007297-21ssh00:02:551
10050550,0irq/346-484840026922-21taskset22:43:351
10050550,0irq/346-48484002518899cyclictest22:02:411
10050550,0irq/346-484840017102-21ssh23:06:091
9950540,0irq/345-48484002518899cyclictest22:54:491
10050540,0irq/346-48484005488-21ssh22:21:081
10050540,0irq/346-484840029893-21ssh22:46:011
10050540,0irq/346-48484001229-21ssh23:23:381
10050540,0irq/346-48484000-21swapper/123:26:501
10050540,0irq/346-48484000-21swapper/123:26:501
9950530,0irq/345-48484009329-1kworker/1:1H23:44:411
81530,0rcu_preempt19-21ksoftirqd/122:15:431
9950520,0irq/345-4848400181ktimersoftd/100:15:481
9950520,0irq/345-4848400171rcuc/121:59:061
9950510,0irq/345-48484002518899cyclictest21:28:531
9950510,0irq/345-4848400181ktimersoftd/121:45:411
10050510,0irq/346-48484000-21swapper/100:25:421
9950500,0irq/345-48484007959-1kworker/1:2H00:37:571
9950500,0irq/345-484840028855-1kworker/1:0H23:52:111
10050500,0irq/346-48484000-21swapper/021:12:390
10050500,0irq/346-48484000-21swapper/021:12:390
9950490,0irq/345-48484009329-1kworker/1:1H23:55:531
9950490,0irq/345-48484007459-1kworker/1:0H23:02:581
9950480,0irq/345-48484007459-1kworker/1:0H22:57:151
9950480,0irq/345-484840017976-1kworker/1:3H23:12:061
9950470,0irq/345-48484007452-1kworker/1:2H21:22:551
9950470,0irq/345-484840022153-1kworker/1:2H21:32:151
81470,0rcu_preempt19-21ksoftirqd/120:59:571
10050470,0irq/346-484840025185-21cyclictest20:14:391
9950460,0irq/345-48484000-21swapper/100:07:031
10050460,0irq/346-48484003-21ksoftirqd/019:26:430
9950450,0irq/345-48484000-21swapper/119:19:561
81450,0rcu_preempt19-21ksoftirqd/119:47:461
10050450,0irq/346-484840029776-21ssh23:19:561
10050450,0irq/346-484840020455-1kworker/0:1H20:35:140
10050450,0irq/346-48484000-21swapper/100:30:131
81440,0rcu_preempt19-21ksoftirqd/119:24:311
10050440,0irq/346-484840015505-1kworker/1:1H20:16:511
81430,0rcu_preempt3-21ksoftirqd/019:55:210
81430,0rcu_preempt26107-21php-cgi20:50:130
10050430,0irq/346-48484000-21swapper/121:00:061
9950420,0irq/345-484840026232sleep119:39:561
81420,0rcu_preempt3-21ksoftirqd/019:10:180
81420,0rcu_preempt24709-21users19:05:190
81420,0rcu_preempt19-21ksoftirqd/119:30:071
10050420,0irq/346-484840028475-21ping19:41:421
81410,0rcu_preempt3-21ksoftirqd/019:50:210
81410,0rcu_preempt27549-21kworker/1:120:51:391
81410,0rcu_preempt19-21ksoftirqd/120:06:251
81400,0rcu_preempt23761-1kworker/1:3H20:46:121
10050400,0irq/346-48484009329-1kworker/1:1H23:45:131
10050400,0irq/346-484840027171-21ssh21:37:141
81390,0rcu_preempt19-21ksoftirqd/120:28:551
81390,0rcu_preempt19-21ksoftirqd/120:21:021
81390,0rcu_preempt19-21ksoftirqd/120:21:021
25186993913,0cyclictest0-21swapper/019:30:320
81380,0rcu_preempt3-21ksoftirqd/019:35:570
81380,0rcu_preempt19-21ksoftirqd/121:07:271
81370,0rcu_preempt851-21rngd19:13:281
81370,0rcu_preempt8441-21ps19:55:211
81370,0rcu_preempt19-21ksoftirqd/120:40:421
81370,0rcu_preempt19-21ksoftirqd/119:50:221
81360,0rcu_preempt19-21ksoftirqd/120:33:571
81360,0rcu_preempt19-21ksoftirqd/119:09:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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