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2026-02-24 - 04:01
[ 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 Tue Feb 24, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811140,0rcu_preempt19-21ksoftirqd/123:54:041
811120,0rcu_preempt54-21kswapd023:45:361
811000,0rcu_preempt19-21ksoftirqd/119:28:351
81980,0rcu_preempt19-21ksoftirqd/119:19:281
10050950,0irq/346-4848400111rcuc/023:19:000
81920,0rcu_preempt19-21ksoftirqd/122:39:421
81880,0rcu_preempt7499-21ssh21:09:440
81860,0rcu_preempt31608-21cyclictest21:56:301
10050830,0irq/346-484840041ktimersoftd/000:14:200
81820,0rcu_preempt1470-21runrttasks22:27:511
10050770,0irq/346-484840054-21kswapd021:45:520
81720,0rcu_preempt19-21ksoftirqd/123:32:281
10050720,0irq/346-484840054-21kswapd023:41:270
81710,0rcu_preempt54-21kswapd022:07:451
81680,0rcu_preempt19-21ksoftirqd/123:20:341
10050680,0irq/346-48484000-21swapper/000:24:380
81670,0rcu_preempt3-21ksoftirqd/023:11:370
81670,0rcu_preempt19-21ksoftirqd/121:13:331
81650,0rcu_preempt3-21ksoftirqd/021:35:270
81650,0rcu_preempt19-21ksoftirqd/100:29:401
10050650,0irq/346-484840054-21kswapd022:49:300
10050630,0irq/346-48484000-21swapper/119:39:171
81620,0rcu_preempt19-21ksoftirqd/121:45:061
81610,0rcu_preempt3-21ksoftirqd/022:34:480
81610,0rcu_preempt3-21ksoftirqd/021:59:570
10050610,0irq/346-484840054-21kswapd023:07:141
10050610,0irq/346-48484000-21swapper/000:34:590
9950600,0irq/345-4848400191722sleep022:26:220
81600,0rcu_preempt3-21ksoftirqd/000:07:240
81600,0rcu_preempt19-21ksoftirqd/122:10:371
10050600,0irq/346-48484008913-1kworker/0:2H22:16:540
10050600,0irq/346-484840011593-1kworker/0:3H22:54:300
10050590,0irq/346-484840054-21kswapd021:18:241
81580,0rcu_preempt3-21ksoftirqd/022:32:010
81560,0rcu_preempt3-21ksoftirqd/023:35:570
81560,0rcu_preempt3-21ksoftirqd/000:21:170
10050560,0irq/346-48484006860-1kworker/0:0H00:00:340
10050560,0irq/346-484840021859-1kworker/1:2H00:08:251
81550,0rcu_preempt3-21ksoftirqd/021:04:290
81550,0rcu_preempt3-21ksoftirqd/021:04:290
81550,0rcu_preempt19-21ksoftirqd/100:21:481
10050550,0irq/346-484840015152-21ssh23:59:401
81540,0rcu_preempt22365-21kworker/0:020:34:110
81540,0rcu_preempt22365-21kworker/0:020:34:110
81540,0rcu_preempt0-21swapper/122:45:281
10050540,0irq/346-4848400851-21rngd22:21:210
10050540,0irq/346-484840054-21kswapd023:16:061
10050540,0irq/346-484840054-21kswapd023:01:231
10050540,0irq/346-484840054-21kswapd022:57:191
10050540,0irq/346-484840054-21kswapd022:34:181
10050540,0irq/346-484840054-21kswapd022:14:140
10050540,0irq/346-484840054-21kswapd021:14:410
10050540,0irq/346-484840054-21kswapd000:32:520
10050540,0irq/346-484840031692-1kworker/1:3H23:14:101
10050530,0irq/346-484840054-21kswapd023:59:151
81520,0rcu_preempt3-21ksoftirqd/020:03:120
81520,0rcu_preempt3-21ksoftirqd/019:54:330
10050520,0irq/346-484840054-21kswapd021:43:301
10050520,0irq/346-484840054-21kswapd021:20:221
10050520,0irq/346-484840026856-1kworker/0:0H00:12:410
10050520,0irq/346-484840019-21ksoftirqd/122:02:351
81510,0rcu_preempt3-21ksoftirqd/023:54:450
10050510,0irq/346-48484008759-21ssh22:15:501
10050510,0irq/346-4848400851-21rngd23:49:290
10050510,0irq/346-484840054-21kswapd022:40:110
10050510,0irq/346-484840054-21kswapd021:30:481
10050510,0irq/346-484840054-21kswapd000:12:181
10050510,0irq/346-484840026137-21ssh21:29:071
81500,0rcu_preempt3-21ksoftirqd/021:49:290
81500,0rcu_preempt3-21ksoftirqd/020:12:570
81500,0rcu_preempt18810-21kworker/0:020:09:000
10050500,0irq/346-48484008688-1kworker/1:1H00:26:001
10050500,0irq/346-48484000-21swapper/021:55:560
9950490,0irq/345-48484000-21swapper/022:47:540
81490,0rcu_preempt3-21ksoftirqd/021:42:060
81490,0rcu_preempt3-21ksoftirqd/020:20:010
81490,0rcu_preempt3-21ksoftirqd/020:18:360
81490,0rcu_preempt2913-21kworker/0:121:19:370
10050490,0irq/346-484840054-21kswapd022:52:541
10050490,0irq/346-48484003353-21ssh21:38:381
10050490,0irq/346-484840023684-1kworker/0:2H21:29:290
10050490,0irq/346-48484000-21swapper/023:22:590
81480,0rcu_preempt3-21ksoftirqd/023:08:340
81480,0rcu_preempt3-21ksoftirqd/020:44:420
81480,0rcu_preempt21210-21kworker/0:023:47:260
81480,0rcu_preempt16603-21kworker/0:223:33:300
10050480,0irq/346-484840054-21kswapd021:26:110
10050480,0irq/346-484840054-21kswapd000:37:211
10050480,0irq/346-484840024619-21ssh23:36:411
10050480,0irq/346-484840020608-21users22:59:490
10050480,0irq/346-484840018931-1kworker/1:0H22:32:441
10050480,0irq/346-48484000-21swapper/023:26:120
81470,0rcu_preempt3-21ksoftirqd/019:46:190
81470,0rcu_preempt3-21ksoftirqd/019:34:340
81470,0rcu_preempt30096-21apt-get19:04:270
10050470,0irq/346-484840054-21kswapd023:43:061
10050470,0irq/346-484840031296-1kworker/1:3H22:19:221
81460,0rcu_preempt3-21ksoftirqd/020:49:470
81460,0rcu_preempt3-21ksoftirqd/019:49:380
81460,0rcu_preempt19-21ksoftirqd/120:04:341
81460,0rcu_preempt19-21ksoftirqd/120:04:061
81460,0rcu_preempt19-21ksoftirqd/119:44:301
81460,0rcu_preempt19-21ksoftirqd/119:32:251
81460,0rcu_preempt15261-21ping20:24:471
10050460,0irq/346-484840028775-21sendmail20:39:170
10050460,0irq/346-484840015564-21ssh21:50:061
81450,0rcu_preempt31756-21apt-get19:09:280
81450,0rcu_preempt19-21ksoftirqd/123:27:321
81450,0rcu_preempt19-21ksoftirqd/120:09:391
81450,0rcu_preempt19-21ksoftirqd/119:42:071
13250450,0irq/301-480200023597-1kworker/0:0H20:24:320
10050450,0irq/346-484840032255-21ssh00:16:511
10050450,0irq/346-484840026281-1kworker/0:3H22:05:160
81440,0rcu_preempt958-21apt-get19:14:290
81440,0rcu_preempt3-21ksoftirqd/020:59:340
81440,0rcu_preempt19-21ksoftirqd/120:21:581
81440,0rcu_preempt19-21ksoftirqd/120:14:471
81440,0rcu_preempt19-21ksoftirqd/119:04:341
81430,0rcu_preempt19-21ksoftirqd/119:56:561
81430,0rcu_preempt19-21ksoftirqd/119:49:441
10050430,0irq/346-484840029632-21munin-node0
81420,0rcu_preempt19-21ksoftirqd/120:29:301
81420,0rcu_preempt19-21ksoftirqd/120:29:301
10050420,0irq/346-48484002218-1kworker/0:2H19:24:400
81410,0rcu_preempt54-21kswapd020:34:291
81410,0rcu_preempt19-21ksoftirqd/120:54:361
81410,0rcu_preempt19-21ksoftirqd/120:49:331
81410,0rcu_preempt19-21ksoftirqd/120:44:381
81410,0rcu_preempt19-21ksoftirqd/119:09:291
81400,0rcu_preempt19-21ksoftirqd/120:59:421
81400,0rcu_preempt19-21ksoftirqd/120:39:351
81400,0rcu_preempt19-21ksoftirqd/119:14:301
3161199402,0cyclictest2493-21ping19:39:310
81390,0rcu_preempt19-21ksoftirqd/121:04:441
81390,0rcu_preempt19-21ksoftirqd/121:04:441
10050390,0irq/346-48484001464-21munin-node0
81380,0rcu_preempt2493-21ping19:29:310
10050380,0irq/346-48484004150-21idleruntime-cro19:24:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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