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2026-01-15 - 08:28
[ 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 Thu Jan 15, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811120,0rcu_preempt19-21ksoftirqd/122:58:281
81940,0rcu_preempt3-21ksoftirqd/021:00:070
81940,0rcu_preempt3-21ksoftirqd/000:10:490
81930,0rcu_preempt19-21ksoftirqd/121:36:111
81920,0rcu_preempt19-21ksoftirqd/119:19:571
81880,0rcu_preempt21310-21ssh00:30:081
81870,0rcu_preempt19-21ksoftirqd/123:51:361
81820,0rcu_preempt24265-21ssh00:00:001
81760,0rcu_preempt0-21swapper/121:59:021
81740,0rcu_preempt19-21ksoftirqd/123:07:351
81740,0rcu_preempt19-21ksoftirqd/122:05:391
81720,0rcu_preempt3-21ksoftirqd/021:23:430
81710,0rcu_preempt19-21ksoftirqd/121:25:161
81710,0rcu_preempt19-21ksoftirqd/119:38:481
81700,0rcu_preempt3-21ksoftirqd/022:50:260
81700,0rcu_preempt3-21ksoftirqd/022:50:260
81690,0rcu_preempt0-21swapper/121:10:481
81680,0rcu_preempt19-21ksoftirqd/122:31:451
81680,0rcu_preempt19-21ksoftirqd/122:31:451
81670,0rcu_preempt3-21ksoftirqd/023:28:330
81670,0rcu_preempt19-21ksoftirqd/122:37:561
81670,0rcu_preempt19-21ksoftirqd/122:28:461
81660,0rcu_preempt3-21ksoftirqd/000:22:310
81660,0rcu_preempt19-21ksoftirqd/120:17:231
81650,0rcu_preempt19-21ksoftirqd/119:27:521
81640,0rcu_preempt3-21ksoftirqd/022:41:030
81640,0rcu_preempt19-21ksoftirqd/121:49:041
81620,0rcu_preempt3-21ksoftirqd/023:59:320
81620,0rcu_preempt3-21ksoftirqd/022:45:110
81620,0rcu_preempt19-21ksoftirqd/123:41:321
81620,0rcu_preempt19-21ksoftirqd/123:17:081
81620,0rcu_preempt19-21ksoftirqd/119:45:261
81620,0rcu_preempt0-21swapper/122:47:591
10050620,0irq/346-4848400171rcuc/123:14:461
81610,0rcu_preempt19-21ksoftirqd/123:56:491
81610,0rcu_preempt19-21ksoftirqd/122:53:521
81610,0rcu_preempt19-21ksoftirqd/122:53:521
81610,0rcu_preempt19-21ksoftirqd/120:09:551
81610,0rcu_preempt19-21ksoftirqd/119:31:071
81610,0rcu_preempt19-21ksoftirqd/119:31:071
81610,0rcu_preempt19-21ksoftirqd/100:36:041
9950600,0irq/345-484840011584-21ssh22:40:101
81600,0rcu_preempt19-21ksoftirqd/123:26:351
81600,0rcu_preempt19-21ksoftirqd/122:03:511
81600,0rcu_preempt19-21ksoftirqd/100:16:571
9950590,0irq/345-4848400181ktimersoftd/120:00:011
81590,0rcu_preempt19-21ksoftirqd/120:47:341
81590,0rcu_preempt19-21ksoftirqd/119:52:221
81590,0rcu_preempt19-21ksoftirqd/119:40:051
9950580,0irq/345-4848400181ktimersoftd/100:13:551
9950580,0irq/345-4848400171rcuc/100:28:071
81580,0rcu_preempt19-21ksoftirqd/123:30:211
81570,0rcu_preempt19-21ksoftirqd/122:11:491
9950560,0irq/345-4848400171rcuc/123:23:341
9950560,0irq/345-4848400171rcuc/123:02:151
9950560,0irq/345-4848400171rcuc/122:16:231
81560,0rcu_preempt8584-21ssh21:30:150
81560,0rcu_preempt19-21ksoftirqd/100:20:591
10050560,0irq/346-484840032707-21ssh23:35:110
10050560,0irq/346-4848400181ktimersoftd/121:09:541
9950550,0irq/345-4848400181ktimersoftd/121:16:061
9950550,0irq/345-4848400171rcuc/100:06:071
10050550,0irq/346-484840020217-1kworker/0:1H21:42:460
9950540,0irq/345-4848400171rcuc/120:59:561
81540,0rcu_preempt3-21ksoftirqd/023:50:130
81540,0rcu_preempt3-21ksoftirqd/000:00:180
10050540,0irq/346-4848400171rcuc/121:20:031
10050540,0irq/346-4848400111rcuc/022:57:540
9950530,0irq/345-4848400171rcuc/119:55:111
9950530,0irq/345-484840012188-1kworker/0:0H22:17:270
81530,0rcu_preempt3-21ksoftirqd/023:44:570
81530,0rcu_preempt3-21ksoftirqd/000:30:210
81530,0rcu_preempt20753-21diskmemload23:30:170
81530,0rcu_preempt20753-21diskmemload21:40:141
10050530,0irq/346-48484004958-1kworker/0:0H23:06:320
9950520,0irq/345-484840019-21ksoftirqd/120:39:571
9950520,0irq/345-484840019-21ksoftirqd/120:39:571
9950520,0irq/345-4848400171rcuc/123:35:491
81520,0rcu_preempt7143-21kworker/1:123:46:541
81520,0rcu_preempt3-21ksoftirqd/000:17:250
9950510,0irq/345-4848400171rcuc/121:51:231
9950510,0irq/345-48484000-21swapper/021:19:140
81510,0rcu_preempt3-21ksoftirqd/023:14:370
81510,0rcu_preempt3-21ksoftirqd/022:30:060
81510,0rcu_preempt3-21ksoftirqd/022:30:060
81510,0rcu_preempt3-21ksoftirqd/022:20:070
81510,0rcu_preempt3-21ksoftirqd/019:56:480
81510,0rcu_preempt24840-1kworker/0:2H19:50:100
10050510,0irq/346-48484007301-1kworker/0:2H22:03:430
10050510,0irq/346-48484004129-1kworker/0:1H22:36:400
81500,0rcu_preempt3-21ksoftirqd/023:00:020
81500,0rcu_preempt3-21ksoftirqd/021:35:260
81500,0rcu_preempt3-21ksoftirqd/000:09:260
81490,0rcu_preempt851-21rngd20:20:070
81490,0rcu_preempt3-21ksoftirqd/020:50:120
9950480,0irq/345-484840028161-21munin-node0
9950480,0irq/345-484840017524-21munin-run23:19:550
81480,0rcu_preempt3-21ksoftirqd/020:25:100
81480,0rcu_preempt3-21ksoftirqd/020:16:030
81480,0rcu_preempt3-21ksoftirqd/020:06:290
81480,0rcu_preempt3-21ksoftirqd/020:04:470
81480,0rcu_preempt26213-21ssh00:35:110
81480,0rcu_preempt19-21ksoftirqd/120:13:561
10050480,0irq/346-484840025741-21ssh21:47:470
10050480,0irq/346-48484000-21swapper/121:34:491
9950470,0irq/345-484840081rcu_preempt21:00:001
81470,0rcu_preempt3-21ksoftirqd/022:06:450
81470,0rcu_preempt3-21ksoftirqd/020:45:210
81470,0rcu_preempt3-21ksoftirqd/020:40:060
81470,0rcu_preempt3-21ksoftirqd/020:40:060
81470,0rcu_preempt3-21ksoftirqd/020:14:530
81470,0rcu_preempt19-21ksoftirqd/122:20:331
81470,0rcu_preempt19-21ksoftirqd/120:25:101
81470,0rcu_preempt19-21ksoftirqd/120:20:041
81470,0rcu_preempt1300-21kworker/0:323:40:370
81460,0rcu_preempt3-21ksoftirqd/022:25:090
81460,0rcu_preempt3-21ksoftirqd/000:25:210
81460,0rcu_preempt20214-21kworker/0:121:55:410
10050460,0irq/346-484840015466-1kworker/0:1H23:22:050
81450,0rcu_preempt54-21kswapd019:35:320
81450,0rcu_preempt3-21ksoftirqd/019:15:450
81450,0rcu_preempt3-21ksoftirqd/019:05:190
81450,0rcu_preempt19-21ksoftirqd/119:05:141
10050450,0irq/346-48484005596-1kworker/0:3H21:29:550
10050450,0irq/346-484840026766-21sshd19:49:420
81430,0rcu_preempt3-21ksoftirqd/022:10:460
81430,0rcu_preempt3-21ksoftirqd/020:35:210
81430,0rcu_preempt19-21ksoftirqd/119:10:141
81430,0rcu_preempt13795-21apt-get19:10:070
10050430,0irq/346-484840019862-21runrttasks19:26:040
10050430,0irq/346-484840017105-21apt-get19:20:030
81420,0rcu_preempt3-21ksoftirqd/021:11:210
81420,0rcu_preempt3-21ksoftirqd/021:07:420
81420,0rcu_preempt3-21ksoftirqd/020:55:220
81420,0rcu_preempt3-21ksoftirqd/020:34:350
9950410,0irq/345-484840016935-21ping19:40:030
9950410,0irq/345-484840016935-21ping19:19:551
81390,0rcu_preempt19-21ksoftirqd/120:50:081
81380,0rcu_preempt19-21ksoftirqd/120:30:191
81370,0rcu_preempt7143-21kworker/1:120:35:431
81350,0rcu_preempt3-21ksoftirqd/019:30:300
81350,0rcu_preempt3-21ksoftirqd/019:30:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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