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2026-02-16 - 03:05
[ 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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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 Mon Feb 16, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10050860,0irq/346-48484009083-1kworker/0:0H00:37:050
10050750,0irq/346-48484000-21swapper/021:25:310
81730,0rcu_preempt3-21ksoftirqd/020:09:370
81730,0rcu_preempt3-21ksoftirqd/020:09:370
81730,0rcu_preempt3-21ksoftirqd/000:06:580
81730,0rcu_preempt3-21ksoftirqd/000:06:580
81720,0rcu_preempt3-21ksoftirqd/022:53:270
81710,0rcu_preempt3-21ksoftirqd/020:04:350
81700,0rcu_preempt3-21ksoftirqd/022:34:160
81690,0rcu_preempt3-21ksoftirqd/023:30:510
81660,0rcu_preempt19-21ksoftirqd/119:39:381
81620,0rcu_preempt3-21ksoftirqd/023:19:550
81620,0rcu_preempt14899-21kworker/0:222:44:390
10050610,0irq/346-484840030242-1kworker/1:1H23:35:431
10050610,0irq/346-484840021811-1kworker/1:1H21:37:551
10050610,0irq/346-484840012274-1kworker/1:3H22:00:171
10050600,0irq/346-484840027996-1kworker/1:0H23:09:431
81590,0rcu_preempt3043-21kworker/0:220:03:390
81590,0rcu_preempt21812-1kworker/0:1H21:40:150
81590,0rcu_preempt19-21ksoftirqd/121:49:491
10050590,0irq/346-484840054-21kswapd022:55:311
10050590,0irq/346-484840054-21kswapd021:24:271
10050590,0irq/346-484840010028-1kworker/1:3H23:00:401
10050580,0irq/346-4848400628-1kworker/1:2H22:53:221
10050580,0irq/346-48484004235-21ssh21:19:340
10050580,0irq/346-484840031947-1kworker/1:2H21:48:061
10050580,0irq/346-484840015121-1kworker/1:1H23:06:081
81570,0rcu_preempt3-21ksoftirqd/021:34:420
81570,0rcu_preempt3-21ksoftirqd/020:49:340
81570,0rcu_preempt19-21ksoftirqd/100:12:461
10050570,0irq/346-48484006720-1kworker/1:2H00:06:231
10050570,0irq/346-48484006720-1kworker/1:2H00:06:231
10050570,0irq/346-48484006720-1kworker/1:2H00:04:021
10050570,0irq/346-484840021979-1kworker/1:0H00:21:371
81560,0rcu_preempt3-21ksoftirqd/022:14:370
81560,0rcu_preempt19-21ksoftirqd/100:16:411
10050560,0irq/346-4848400851-21rngd21:56:251
10050560,0irq/346-484840054-21kswapd023:44:151
10050560,0irq/346-484840024955-1kworker/1:3H22:15:561
10050560,0irq/346-484840012274-1kworker/1:3H22:04:271
81550,0rcu_preempt3-21ksoftirqd/023:39:390
81550,0rcu_preempt3-21ksoftirqd/022:59:420
81550,0rcu_preempt3-21ksoftirqd/019:19:430
10050550,0irq/346-484840054-21kswapd022:07:590
10050550,0irq/346-484840054-21kswapd021:31:170
10050550,0irq/346-48484004605-1kworker/1:0H22:09:541
81540,0rcu_preempt3-21ksoftirqd/023:34:520
81540,0rcu_preempt3-21ksoftirqd/022:09:420
81540,0rcu_preempt23592-21df_abs23:14:410
81540,0rcu_preempt19-21ksoftirqd/121:21:421
10050540,0irq/346-48484007983-1kworker/1:2H23:31:141
10050540,0irq/346-484840054-21kswapd023:57:370
10050540,0irq/346-484840028987-1kworker/1:1H23:53:191
10050540,0irq/346-484840028987-1kworker/1:1H23:53:191
81530,0rcu_preempt3-21ksoftirqd/021:49:420
81530,0rcu_preempt3-21ksoftirqd/021:14:450
81530,0rcu_preempt3-21ksoftirqd/000:19:520
10050530,0irq/346-484840054-21kswapd023:15:511
10050530,0irq/346-484840024953-1kworker/1:1H22:41:341
10050530,0irq/346-484840024953-1kworker/1:1H22:41:341
10050530,0irq/346-484840024953-1kworker/1:1H22:20:381
10050530,0irq/346-484840020148-1kworker/1:2H23:25:221
10050530,0irq/346-48484001665-1kworker/1:0H23:57:141
10050530,0irq/346-484840011708-1kworker/1:0H21:32:021
81520,0rcu_preempt4037-21kworker/0:200:31:260
81520,0rcu_preempt3-21ksoftirqd/023:09:520
81520,0rcu_preempt3-21ksoftirqd/000:14:480
81520,0rcu_preempt21223-21apt-get23:44:370
10050520,0irq/346-4848400851-21rngd22:24:320
10050520,0irq/346-484840030242-1kworker/1:1H23:22:331
10050520,0irq/346-484840012781-1kworker/1:2H22:35:061
81510,0rcu_preempt3-21ksoftirqd/023:24:430
81510,0rcu_preempt23913-1kworker/0:0H23:51:330
81510,0rcu_preempt23913-1kworker/0:0H23:51:330
10050510,0irq/346-4848400851-21rngd23:48:011
10050510,0irq/346-48484007819-21ssh22:26:411
10050510,0irq/346-484840054-21kswapd021:44:051
10050510,0irq/346-48484000-21swapper/022:34:420
81500,0rcu_preempt8129-1kworker/0:1H23:05:000
81500,0rcu_preempt3-21ksoftirqd/022:41:160
81500,0rcu_preempt3-21ksoftirqd/022:41:160
81500,0rcu_preempt3-21ksoftirqd/019:54:510
81500,0rcu_preempt3-21ksoftirqd/019:05:490
10050500,0irq/346-4848400851-21rngd22:59:100
10050500,0irq/346-484840022932-1kworker/1:2H22:46:121
10050500,0irq/346-484840019132-21cyclictest22:00:330
10050500,0irq/346-48484000-21swapper/021:13:170
9950490,0irq/345-484840081rcu_preempt19:11:011
81490,0rcu_preempt3-21ksoftirqd/021:44:490
81490,0rcu_preempt3-21ksoftirqd/000:09:430
81490,0rcu_preempt1470-21runrttasks19:29:500
10050490,0irq/346-484840054-21kswapd020:19:360
10050490,0irq/346-484840054-21kswapd019:39:360
10050490,0irq/346-48484004780-1kworker/1:1H00:36:321
10050490,0irq/346-484840012781-1kworker/1:2H22:33:321
10050490,0irq/346-48484000-21swapper/000:04:120
81480,0rcu_preempt3-21ksoftirqd/021:54:380
81480,0rcu_preempt3-21ksoftirqd/020:59:450
81480,0rcu_preempt3-21ksoftirqd/019:49:470
81480,0rcu_preempt3-21ksoftirqd/000:26:590
81480,0rcu_preempt31911-21kworker/1:121:10:511
81480,0rcu_preempt2955-21ping20:17:460
81480,0rcu_preempt19-21ksoftirqd/120:09:261
81480,0rcu_preempt19-21ksoftirqd/120:09:261
9950470,0irq/345-48484000-21swapper/119:39:251
81470,0rcu_preempt24732-21apt-get21:04:360
81470,0rcu_preempt21130-21diskstats19:14:400
81470,0rcu_preempt21130-21diskstats19:14:400
81470,0rcu_preempt19488-21diskstats19:09:400
81470,0rcu_preempt19-21ksoftirqd/120:25:491
81470,0rcu_preempt19-21ksoftirqd/120:23:461
81470,0rcu_preempt19-21ksoftirqd/120:14:531
10050470,0irq/346-484840054-21kswapd000:30:031
10050470,0irq/346-484840031964-1kworker/1:2H19:59:401
10050470,0irq/346-48484000-21swapper/022:19:280
81460,0rcu_preempt3-21ksoftirqd/020:27:090
81460,0rcu_preempt19-21ksoftirqd/119:46:441
10050460,0irq/346-4848400818-21ssh21:15:271
10050460,0irq/346-484840032525-21ssh00:27:231
81450,0rcu_preempt3-21ksoftirqd/020:44:430
81450,0rcu_preempt3-21ksoftirqd/019:48:360
81450,0rcu_preempt21426-21apt-get20:54:370
81450,0rcu_preempt20347-21kworker/0:119:39:250
81450,0rcu_preempt19-21ksoftirqd/119:31:351
81450,0rcu_preempt19-21ksoftirqd/119:19:351
81450,0rcu_preempt15019-21df_abs20:34:390
10050450,0irq/346-484840022421-21ping19:28:451
81440,0rcu_preempt19-21ksoftirqd/119:07:321
81440,0rcu_preempt0-21swapper/020:39:430
10050440,0irq/346-484840022618-1kworker/1:0H20:59:431
9950430,0irq/345-484840013961-21awk20:29:510
81430,0rcu_preempt9546-21kworker/0:219:27:000
81430,0rcu_preempt19-21ksoftirqd/120:44:361
81420,0rcu_preempt19-21ksoftirqd/120:41:521
81420,0rcu_preempt19-21ksoftirqd/119:49:381
81410,0rcu_preempt19-21ksoftirqd/120:04:431
81410,0rcu_preempt19-21ksoftirqd/119:19:261
81410,0rcu_preempt19-21ksoftirqd/119:19:261
81410,0rcu_preempt13194-21apt-get20:29:371
81400,0rcu_preempt19-21ksoftirqd/119:54:371
81390,0rcu_preempt19-21ksoftirqd/120:54:381
81380,0rcu_preempt19-21ksoftirqd/121:04:411
81380,0rcu_preempt19-21ksoftirqd/120:49:511
81380,0rcu_preempt19-21ksoftirqd/120:34:521
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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