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2026-02-11 - 11:03
[ 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 11, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811210,0rcu_preempt54-21kswapd021:19:381
811170,0rcu_preempt19-21ksoftirqd/122:57:331
10050820,0irq/346-484840041ktimersoftd/000:24:460
10050790,0irq/346-484840018051-1kworker/0:3H23:57:230
10050780,0irq/346-4848400111rcuc/021:54:250
10050770,0irq/346-484840054-21kswapd000:19:540
10050730,0irq/346-484840054-21kswapd023:07:500
10050730,0irq/346-484840054-21kswapd021:25:390
81710,0rcu_preempt3-21ksoftirqd/022:14:170
10050710,0irq/346-484840041ktimersoftd/023:24:240
10050710,0irq/346-484840014001-1kworker/0:3H22:17:060
81700,0rcu_preempt851-21rngd21:46:181
10050690,0irq/346-4848400801-1kworker/0:2H00:12:390
10050690,0irq/346-484840011969-1kworker/0:1H22:53:380
3407996810,0cyclictest10194-1kworker/0:2H21:19:420
10050680,0irq/346-48484003872-1kworker/0:0H22:07:000
10050680,0irq/346-484840027334-1kworker/0:0H00:05:440
81670,0rcu_preempt19-21ksoftirqd/100:16:521
340799678,0cyclictest8734-21ssh21:39:430
10050670,0irq/346-484840010194-1kworker/0:2H21:18:400
340799662,0cyclictest10417-21seq19:29:520
10050660,0irq/346-484840018051-1kworker/0:3H23:59:310
340799655,0cyclictest10948-1kworker/0:2H21:45:360
340799652,0cyclictest0-21swapper/021:13:260
3407996518,0cyclictest5606-21cut23:44:460
340799651,0cyclictest6698-21ping19:19:440
340799645,0cyclictest5246-1kworker/0:2H20:59:400
340799641,0cyclictest13290-21sendmail-msp19:39:410
10050640,0irq/346-484840014972-1kworker/0:3H23:36:090
81630,0rcu_preempt19-21ksoftirqd/121:40:001
81620,0rcu_preempt29611-21kworker/0:120:49:550
81620,0rcu_preempt19-21ksoftirqd/123:52:501
340799628,0cyclictest14001-1kworker/0:3H22:19:580
3407996215,0cyclictest30115-21ssh22:00:020
81610,0rcu_preempt19-21ksoftirqd/122:21:331
3407996114,0cyclictest9512-21munin-node0
340799611,0cyclictest6698-21ping19:19:300
340799611,0cyclictest6698-21ping19:19:300
3407996110,0cyclictest0-21swapper/000:33:110
10050610,0irq/346-48484009122-1kworker/0:0H23:16:390
10050610,0irq/346-484840030527-1kworker/0:0H23:10:240
81600,0rcu_preempt3-21ksoftirqd/022:34:590
340799603,0cyclictest0-21swapper/021:30:330
340799603,0cyclictest0-21swapper/021:30:330
340799602,0cyclictest26099-1kworker/0:1H20:19:430
340799602,0cyclictest24054-21df_inode21:54:460
340799602,0cyclictest0-21swapper/023:39:350
340799602,0cyclictest0-21swapper/022:31:130
3407996015,0cyclictest11586-21munin-node0
81590,0rcu_preempt19-21ksoftirqd/123:39:551
81590,0rcu_preempt19-21ksoftirqd/123:03:441
81590,0rcu_preempt19-21ksoftirqd/122:53:141
81590,0rcu_preempt19-21ksoftirqd/122:08:021
3407995914,0cyclictest27789-21runrttasks00:38:530
3407995911,0cyclictest10502-21diskmemload23:24:360
340799591,0cyclictest19063-1kworker/0:4H22:25:240
340799588,0cyclictest0-21swapper/019:45:080
3407995812,0cyclictest0-21swapper/020:39:420
340799581,0cyclictest9133-21aten_rapower_vo21:04:420
340799581,0cyclictest7214-21ssh22:41:540
81570,0rcu_preempt3-21ksoftirqd/020:34:390
340799572,0cyclictest6698-21ping19:24:440
340799572,0cyclictest0-21swapper/023:01:120
3407995715,0cyclictest0-21swapper/020:09:450
10050570,0irq/346-484840054-21kswapd020:59:401
81560,0rcu_preempt3-21ksoftirqd/019:49:430
81560,0rcu_preempt19-21ksoftirqd/119:44:511
340799568,0cyclictest0-21swapper/023:32:250
340799562,0cyclictest11962-21dropbear19:34:440
81550,0rcu_preempt3-21ksoftirqd/021:34:570
81550,0rcu_preempt3-21ksoftirqd/021:34:570
340799556,0cyclictest54-21kswapd000:14:340
81540,0rcu_preempt19-21ksoftirqd/121:34:471
81540,0rcu_preempt19-21ksoftirqd/121:34:471
81540,0rcu_preempt19-21ksoftirqd/119:23:511
340799542,0cyclictest0-21swapper/022:54:490
81530,0rcu_preempt851-21rngd23:04:431
340799533,0cyclictest0-21swapper/020:29:470
340799533,0cyclictest0-21swapper/020:15:000
340799531,0cyclictest19968-21runrttasks19:59:320
10050530,0irq/346-484840054-21kswapd000:07:301
81520,0rcu_preempt2419-21munin-node0
81520,0rcu_preempt19-21ksoftirqd/122:37:131
81520,0rcu_preempt19-21ksoftirqd/120:04:411
81520,0rcu_preempt0-21swapper/121:29:491
81520,0rcu_preempt0-21swapper/121:29:491
3407995212,0cyclictest0-21swapper/019:09:520
10050520,0irq/346-484840054-21kswapd020:19:301
10050520,0irq/346-484840054-21kswapd000:31:531
81510,0rcu_preempt19-21ksoftirqd/123:14:551
81510,0rcu_preempt19-21ksoftirqd/122:39:391
81510,0rcu_preempt19-21ksoftirqd/119:30:031
81510,0rcu_preempt0-21swapper/100:24:151
340799512,0cyclictest17872-1kworker/0:1H19:54:310
340799512,0cyclictest0-21swapper/020:26:300
81500,0rcu_preempt19-21ksoftirqd/119:39:321
81500,0rcu_preempt19-21ksoftirqd/119:24:511
340799501,0cyclictest22373-21taskset20:04:570
10050500,0irq/346-484840054-21kswapd020:21:081
10050500,0irq/346-48484002132-21munin-node0
81490,0rcu_preempt19-21ksoftirqd/120:24:551
81490,0rcu_preempt19-21ksoftirqd/120:12:451
81490,0rcu_preempt19-21ksoftirqd/100:00:301
340799492,0cyclictest1470-21runrttasks20:55:390
10050490,0irq/346-484840054-21kswapd021:59:301
81480,0rcu_preempt19-21ksoftirqd/123:35:361
81480,0rcu_preempt19-21ksoftirqd/123:24:591
81480,0rcu_preempt19-21ksoftirqd/123:09:591
81480,0rcu_preempt19-21ksoftirqd/119:58:441
81470,0rcu_preempt20610-21kworker/1:122:26:331
81470,0rcu_preempt19-21ksoftirqd/122:44:411
81470,0rcu_preempt19-21ksoftirqd/121:18:101
81470,0rcu_preempt19-21ksoftirqd/120:00:041
81470,0rcu_preempt19-21ksoftirqd/119:37:291
81460,0rcu_preempt26133-1kworker/1:1H21:59:421
81460,0rcu_preempt19-21ksoftirqd/122:29:511
81460,0rcu_preempt19-21ksoftirqd/121:49:421
81460,0rcu_preempt19-21ksoftirqd/100:24:491
81460,0rcu_preempt19-21ksoftirqd/100:09:561
81460,0rcu_preempt0-21swapper/123:58:211
10050460,0irq/346-484840014492-21ssh23:21:001
81450,0rcu_preempt19-21ksoftirqd/122:14:471
81450,0rcu_preempt19-21ksoftirqd/122:09:541
81450,0rcu_preempt19-21ksoftirqd/100:34:501
81440,0rcu_preempt19-21ksoftirqd/121:24:491
81430,0rcu_preempt19-21ksoftirqd/120:39:481
81430,0rcu_preempt19-21ksoftirqd/120:34:441
81430,0rcu_preempt19-21ksoftirqd/120:29:581
81430,0rcu_preempt10502-21diskmemload23:29:531
10050430,0irq/346-484840014939-21ssh21:13:441
81420,0rcu_preempt19-21ksoftirqd/120:44:431
81410,0rcu_preempt6549-21ssh23:44:581
81410,0rcu_preempt19-21ksoftirqd/120:49:571
81410,0rcu_preempt19-21ksoftirqd/119:53:091
81410,0rcu_preempt19-21ksoftirqd/119:14:551
81410,0rcu_preempt19-21ksoftirqd/119:14:551
81390,0rcu_preempt19-21ksoftirqd/121:04:511
81380,0rcu_preempt19-21ksoftirqd/120:56:331
81380,0rcu_preempt19-21ksoftirqd/119:09:401
81370,0rcu_preempt19-21ksoftirqd/119:08:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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