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2026-02-23 - 00:20
[ 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 Sun Feb 22, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811340,0rcu_preempt3-21ksoftirqd/007:04:390
81810,0rcu_preempt2847-1kworker/1:3H10:34:461
81810,0rcu_preempt19-21ksoftirqd/111:24:351
81690,0rcu_preempt19-21ksoftirqd/110:29:191
81670,0rcu_preempt23595-21kworker/1:011:49:491
81660,0rcu_preempt19-21ksoftirqd/110:54:201
81630,0rcu_preempt19-21ksoftirqd/111:44:191
81630,0rcu_preempt19-21ksoftirqd/109:14:331
81630,0rcu_preempt19-21ksoftirqd/109:14:331
9950590,0irq/345-484840019-21ksoftirqd/112:29:361
10050590,0irq/346-484840032592-1kworker/0:1H11:05:420
10050590,0irq/346-484840024525-1kworker/0:2H12:35:030
9950580,0irq/345-484840019-21ksoftirqd/111:48:111
10050570,0irq/346-484840010067-1kworker/0:1H11:11:370
81560,0rcu_preempt19-21ksoftirqd/112:19:341
81560,0rcu_preempt19-21ksoftirqd/112:19:341
81560,0rcu_preempt19-21ksoftirqd/111:34:311
81550,0rcu_preempt13294-21php-cgi07:14:371
81540,0rcu_preempt19-21ksoftirqd/112:34:341
81540,0rcu_preempt19-21ksoftirqd/110:39:521
81530,0rcu_preempt19-21ksoftirqd/108:04:201
81530,0rcu_preempt19-21ksoftirqd/108:04:201
10050530,0irq/346-484840018148-1kworker/0:4H09:56:140
81520,0rcu_preempt31391-1kworker/0:1H12:06:010
10050520,0irq/346-484840028317-21ssh10:57:180
10050520,0irq/346-484840023765-1kworker/0:0H12:33:000
10050520,0irq/346-484840010424-1kworker/0:1H10:09:330
10050520,0irq/346-484840010424-1kworker/0:1H10:09:330
10050520,0irq/346-48484000-21swapper/010:41:400
10050510,0irq/346-48484005517-1kworker/0:2H10:03:330
10050510,0irq/346-484840024957-1kworker/0:0H11:39:370
10050510,0irq/346-484840018809-1kworker/0:3H12:28:040
10050510,0irq/346-484840017749-1kworker/0:2H10:49:420
10050510,0irq/346-484840017749-1kworker/0:2H10:49:420
10050510,0irq/346-484840010067-1kworker/0:1H11:14:300
10050500,0irq/346-48484002437-1kworker/0:2H11:38:050
81490,0rcu_preempt18359-21diskmemload09:39:301
10050490,0irq/346-48484006491-1kworker/0:1H08:34:360
9950480,0irq/345-4848400386-21apt-get10:29:310
9950480,0irq/345-484840013189-1kworker/1:2H09:38:491
81480,0rcu_preempt19-21ksoftirqd/109:24:191
10050480,0irq/346-484840017942-21ssh10:14:280
9950470,0irq/345-484840027651-1kworker/1:3H11:09:591
9950470,0irq/345-48484000-21swapper/010:24:300
81470,0rcu_preempt3-21ksoftirqd/007:11:220
81470,0rcu_preempt23595-21kworker/1:010:52:511
81470,0rcu_preempt23595-21kworker/1:010:52:511
10050470,0irq/346-48484003410-21ssh12:09:550
10050470,0irq/346-48484003410-21ssh12:09:550
10050470,0irq/346-484840019566-21ssh12:26:391
9950460,0irq/345-48484000-21swapper/011:00:120
81460,0rcu_preempt54-21kswapd012:03:530
81460,0rcu_preempt23595-21kworker/1:009:30:511
81460,0rcu_preempt19-21ksoftirqd/110:07:211
81460,0rcu_preempt19-21ksoftirqd/108:23:391
81460,0rcu_preempt19-21ksoftirqd/107:42:551
81460,0rcu_preempt19-21ksoftirqd/107:24:431
10050460,0irq/346-484840029517-21ssh09:19:470
9950450,0irq/345-484840016434-21irqstats09:39:400
81450,0rcu_preempt19-21ksoftirqd/110:14:471
81450,0rcu_preempt19-21ksoftirqd/109:45:051
81450,0rcu_preempt19-21ksoftirqd/108:14:361
81450,0rcu_preempt19-21ksoftirqd/108:09:371
81450,0rcu_preempt19-21ksoftirqd/107:44:361
81450,0rcu_preempt19-21ksoftirqd/107:44:361
81450,0rcu_preempt19-21ksoftirqd/107:22:161
10050450,0irq/346-48484006634-1kworker/0:3H11:45:320
10050450,0irq/346-48484006496-21runrttasks10:34:470
10050450,0irq/346-484840026396-21ssh10:22:450
10050450,0irq/346-484840013190-1kworker/0:3H09:39:090
10050450,0irq/346-48484000-21swapper/011:50:290
81440,0rcu_preempt4687-1kworker/1:1H12:14:421
81440,0rcu_preempt3-21ksoftirqd/009:49:480
81440,0rcu_preempt19-21ksoftirqd/107:38:061
81440,0rcu_preempt19-21ksoftirqd/107:29:471
10050440,0irq/346-48484009621-1kworker/0:0H12:18:270
10050440,0irq/346-484840015048-1kworker/0:1H08:59:360
10050440,0irq/346-484840013449-21ssh12:20:070
10050440,0irq/346-484840013449-21ssh12:20:070
10050440,0irq/346-484840012722-21munin-run10:09:190
10050440,0irq/346-48484000-21swapper/109:10:561
9950430,0irq/345-484840054-21kswapd010:48:520
9950430,0irq/345-48484000-21swapper/009:15:560
9950430,0irq/345-48484000-21swapper/009:15:560
9950430,0irq/345-48484000-21swapper/007:34:420
81430,0rcu_preempt30763-21ssh10:59:431
81430,0rcu_preempt19-21ksoftirqd/111:29:411
81430,0rcu_preempt19-21ksoftirqd/107:59:461
81430,0rcu_preempt18761-21users11:19:520
1599430,0migration/014057-21munin-node0
10050430,0irq/346-484840026232-21rm11:28:100
10050430,0irq/346-484840013096-1kworker/0:3H09:04:360
10050430,0irq/346-48484001146-21sh09:24:320
9950420,0irq/345-484840018359-21diskmemload11:57:340
81420,0rcu_preempt19-21ksoftirqd/112:09:201
81420,0rcu_preempt19-21ksoftirqd/112:09:201
81420,0rcu_preempt19-21ksoftirqd/112:02:291
81420,0rcu_preempt19-21ksoftirqd/111:04:411
81420,0rcu_preempt19-21ksoftirqd/110:09:361
81420,0rcu_preempt19-21ksoftirqd/110:09:361
81420,0rcu_preempt19-21ksoftirqd/109:59:361
81420,0rcu_preempt19-21ksoftirqd/109:51:491
81420,0rcu_preempt18919-21diskstats09:09:380
10050420,0irq/346-484840029508-21ssh11:30:590
10050420,0irq/346-48484001470-21runrttasks09:46:310
9950410,0irq/345-48484008524-21runrttasks09:31:370
9950410,0irq/345-48484000-21swapper/111:22:521
81410,0rcu_preempt19-21ksoftirqd/112:09:131
81410,0rcu_preempt19-21ksoftirqd/111:54:291
81410,0rcu_preempt19-21ksoftirqd/109:24:371
81410,0rcu_preempt19-21ksoftirqd/108:24:431
10050410,0irq/346-4848400870-21ls08:14:410
10050410,0irq/346-484840029489-21munin-node0
10050410,0irq/346-484840029489-21munin-node0
9950400,0irq/345-484840031168-21tr08:09:310
9950400,0irq/345-48484000-21swapper/007:39:460
81400,0rcu_preempt22792-21ssh10:19:201
81400,0rcu_preempt19-21ksoftirqd/111:18:311
81400,0rcu_preempt19-21ksoftirqd/110:44:291
81400,0rcu_preempt19-21ksoftirqd/109:04:381
81400,0rcu_preempt19-21ksoftirqd/107:59:201
81400,0rcu_preempt19-21ksoftirqd/107:09:031
1599400,0migration/029045-21taskset08:01:120
1599400,0migration/011298-21unixbench_singl08:44:470
10050400,0irq/346-48484005185-21latency_hist08:29:200
10050400,0irq/346-484840013150-21wget07:14:320
9950390,0irq/345-484840019136-21192.168.115.60-07:30:520
9950390,0irq/345-48484000-21swapper/008:19:340
81390,0rcu_preempt19-21ksoftirqd/110:24:401
81390,0rcu_preempt19-21ksoftirqd/108:54:431
81390,0rcu_preempt19-21ksoftirqd/108:39:441
1599390,0migration/025823-21runrttasks07:52:080
10050390,0irq/346-48484005620-21if_can008:29:360
9950380,0irq/345-48484000-21swapper/007:54:260
97452380,0chrt8136-1kworker/0:0H08:40:290
81380,0rcu_preempt6032-21ps08:29:431
81380,0rcu_preempt19-21ksoftirqd/109:54:421
81380,0rcu_preempt19-21ksoftirqd/108:50:061
81380,0rcu_preempt19-21ksoftirqd/108:50:061
81380,0rcu_preempt19-21ksoftirqd/108:44:321
81380,0rcu_preempt19-21ksoftirqd/107:09:341
1123799371,0cyclictest16345-21apt-get07:24:330
1123799363,0cyclictest14532-21ping07:44:380
1123799363,0cyclictest14532-21ping07:44:380
81350,0rcu_preempt19-21ksoftirqd/108:37:411
9950340,0irq/345-48484000-21swapper/008:52:480
9950340,0irq/345-48484000-21swapper/008:52:480
81340,0rcu_preempt19-21ksoftirqd/107:49:391
1123799342,0cyclictest0-21swapper/007:19:380
162952330,0sleep111452-1kworker/1:4H08:59:531
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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