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2026-01-19 - 06:14
[ 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 100 highest latencies:
System rackaslot5s.osadl.org (updated Mon Jan 19, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811250,0rcu_preempt19-21ksoftirqd/100:18:091
811220,0rcu_preempt19-21ksoftirqd/122:04:511
811200,0rcu_preempt19-21ksoftirqd/123:36:151
811110,0rcu_preempt4052-21diskmemload00:13:041
811110,0rcu_preempt19-21ksoftirqd/123:02:331
811100,0rcu_preempt19-21ksoftirqd/121:43:421
811090,0rcu_preempt19-21ksoftirqd/121:17:181
811080,0rcu_preempt22904-1kworker/1:0H20:29:521
811080,0rcu_preempt19-21ksoftirqd/122:13:271
811030,0rcu_preempt19-21ksoftirqd/100:30:231
811020,0rcu_preempt19-21ksoftirqd/122:55:391
811020,0rcu_preempt19-21ksoftirqd/121:11:521
811020,0rcu_preempt0-21swapper/123:30:531
811010,0rcu_preempt19-21ksoftirqd/123:54:011
81990,0rcu_preempt19-21ksoftirqd/122:28:541
81980,0rcu_preempt19-21ksoftirqd/119:40:151
81980,0rcu_preempt19-21ksoftirqd/119:31:161
81980,0rcu_preempt19-21ksoftirqd/119:31:161
81970,0rcu_preempt19-21ksoftirqd/100:04:531
81940,0rcu_preempt19-21ksoftirqd/121:23:281
81940,0rcu_preempt19-21ksoftirqd/120:04:181
81920,0rcu_preempt19-21ksoftirqd/123:58:031
81920,0rcu_preempt19-21ksoftirqd/120:23:161
81910,0rcu_preempt19-21ksoftirqd/123:27:461
81910,0rcu_preempt19-21ksoftirqd/122:49:431
10050890,0irq/346-484840019542-1kworker/0:2H23:41:450
81880,0rcu_preempt54-21kswapd022:44:181
81870,0rcu_preempt19-21ksoftirqd/123:22:551
81850,0rcu_preempt19-21ksoftirqd/121:30:041
81840,0rcu_preempt54-21kswapd023:15:031
81840,0rcu_preempt19-21ksoftirqd/120:09:331
81830,0rcu_preempt19-21ksoftirqd/119:47:251
81830,0rcu_preempt19-21ksoftirqd/100:20:191
81820,0rcu_preempt19-21ksoftirqd/122:05:281
81820,0rcu_preempt19-21ksoftirqd/120:55:091
81810,0rcu_preempt19-21ksoftirqd/120:15:281
81810,0rcu_preempt19-21ksoftirqd/119:59:521
81810,0rcu_preempt19-21ksoftirqd/119:59:521
81800,0rcu_preempt19-21ksoftirqd/123:44:371
81800,0rcu_preempt19-21ksoftirqd/123:06:591
81800,0rcu_preempt19-21ksoftirqd/123:06:591
81800,0rcu_preempt19-21ksoftirqd/122:54:261
81800,0rcu_preempt19-21ksoftirqd/122:30:101
81800,0rcu_preempt19-21ksoftirqd/122:30:101
81790,0rcu_preempt0-21swapper/120:35:011
81780,0rcu_preempt19-21ksoftirqd/121:36:041
81780,0rcu_preempt19-21ksoftirqd/121:25:151
81770,0rcu_preempt19-21ksoftirqd/122:17:231
81770,0rcu_preempt19-21ksoftirqd/121:00:151
81770,0rcu_preempt19-21ksoftirqd/120:11:171
81770,0rcu_preempt19-21ksoftirqd/119:22:391
81770,0rcu_preempt19-21ksoftirqd/100:04:111
81760,0rcu_preempt19-21ksoftirqd/122:22:291
81760,0rcu_preempt19-21ksoftirqd/119:10:131
81760,0rcu_preempt19-21ksoftirqd/100:25:191
81750,0rcu_preempt19-21ksoftirqd/121:46:141
10050750,0irq/346-484840054-21kswapd000:22:350
81730,0rcu_preempt19-21ksoftirqd/120:50:091
81730,0rcu_preempt19-21ksoftirqd/119:25:151
81720,0rcu_preempt54-21kswapd022:37:501
81720,0rcu_preempt54-21kswapd022:37:501
81720,0rcu_preempt19-21ksoftirqd/100:35:141
81710,0rcu_preempt19-21ksoftirqd/121:54:051
10050710,0irq/346-48484006290-1kworker/0:0H22:53:370
10050710,0irq/346-484840054-21kswapd022:45:530
81700,0rcu_preempt19-21ksoftirqd/121:59:111
81700,0rcu_preempt19-21ksoftirqd/119:35:141
81690,0rcu_preempt19-21ksoftirqd/123:11:001
81690,0rcu_preempt19-21ksoftirqd/120:40:011
81690,0rcu_preempt19-21ksoftirqd/119:19:521
10050690,0irq/346-484840026528-1kworker/0:2H00:16:450
81680,0rcu_preempt3-21ksoftirqd/023:12:350
10050670,0irq/346-48484008928-1kworker/0:0H00:33:340
9950630,0irq/345-484840028767-1kworker/0:2H22:16:090
81630,0rcu_preempt3-21ksoftirqd/021:26:490
81610,0rcu_preempt54-21kswapd023:30:140
10050590,0irq/346-48484000-21swapper/021:17:330
10050570,0irq/346-484840054-21kswapd020:01:530
10050570,0irq/346-484840013666-21munin-node0
81560,0rcu_preempt13233-21ping19:59:520
81560,0rcu_preempt13233-21ping19:59:520
10050560,0irq/346-48484000-21swapper/021:51:330
10050550,0irq/346-48484006226-1kworker/0:0H22:19:520
10050540,0irq/346-48484000-21swapper/022:30:100
10050540,0irq/346-48484000-21swapper/022:30:100
10050530,0irq/346-48484006673-21uniq21:45:080
10050530,0irq/346-48484000-21swapper/021:43:520
10050520,0irq/346-48484000-21swapper/022:36:470
10050520,0irq/346-48484000-21swapper/022:36:470
29363995114,0cyclictest13233-21ping20:15:030
10050510,0irq/346-484840054-21kswapd023:09:480
10050510,0irq/346-484840054-21kswapd023:09:480
10050510,0irq/346-484840054-21kswapd000:25:020
10050510,0irq/346-484840032244-1kworker/0:0H23:21:250
10050510,0irq/346-484840018889-1kworker/0:1H22:00:020
10050500,0irq/346-484840054-21kswapd021:38:530
10050500,0irq/346-484840054-21kswapd000:12:500
81490,0rcu_preempt3-21ksoftirqd/019:05:050
10050480,0irq/346-484840054-21kswapd022:55:160
10050480,0irq/346-484840054-21kswapd022:07:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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