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2026-02-04 - 14:55
[ 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 04, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811230,0rcu_preempt3-21ksoftirqd/009:43:220
811210,0rcu_preempt3-21ksoftirqd/012:27:070
811150,0rcu_preempt3-21ksoftirqd/010:24:110
81990,0rcu_preempt3-21ksoftirqd/012:34:570
81990,0rcu_preempt3-21ksoftirqd/012:29:590
81990,0rcu_preempt3-21ksoftirqd/010:35:050
81930,0rcu_preempt3-21ksoftirqd/009:25:030
81890,0rcu_preempt3-21ksoftirqd/011:05:010
81760,0rcu_preempt3-21ksoftirqd/010:33:300
81730,0rcu_preempt3-21ksoftirqd/011:54:560
81720,0rcu_preempt3-21ksoftirqd/010:26:190
81710,0rcu_preempt3-21ksoftirqd/009:04:590
81710,0rcu_preempt23394-21apt-get10:09:470
81700,0rcu_preempt3-21ksoftirqd/011:49:560
81670,0rcu_preempt851-21rngd09:17:120
81670,0rcu_preempt851-21rngd09:17:120
81670,0rcu_preempt3-21ksoftirqd/010:39:570
81640,0rcu_preempt0-21swapper/007:55:030
81630,0rcu_preempt3-21ksoftirqd/012:05:010
81620,0rcu_preempt3-21ksoftirqd/009:37:360
10050610,0irq/346-48484008539-1kworker/1:3H09:26:211
10050610,0irq/346-48484007464-1kworker/1:1H10:29:591
10050610,0irq/346-48484002754-1kworker/1:2H12:03:481
81600,0rcu_preempt3-21ksoftirqd/012:09:570
81600,0rcu_preempt3-21ksoftirqd/008:49:580
81600,0rcu_preempt3-21ksoftirqd/008:39:480
10050600,0irq/346-484840018560-1kworker/1:1H11:30:361
81590,0rcu_preempt3-21ksoftirqd/011:15:030
81590,0rcu_preempt1096-21kworker/0:210:59:540
10050590,0irq/346-484840028357-1kworker/1:2H11:25:281
10050590,0irq/346-484840017269-1kworker/1:2H10:37:581
81580,0rcu_preempt3-21ksoftirqd/010:04:590
81580,0rcu_preempt3-21ksoftirqd/008:44:460
10050580,0irq/346-48484008537-1kworker/1:2H09:30:381
10050580,0irq/346-484840054-21kswapd010:21:481
10050580,0irq/346-484840019718-1kworker/1:3H10:42:081
81570,0rcu_preempt3-21ksoftirqd/011:49:190
81570,0rcu_preempt3-21ksoftirqd/011:49:190
81570,0rcu_preempt3-21ksoftirqd/010:55:010
81570,0rcu_preempt3-21ksoftirqd/008:10:050
81570,0rcu_preempt1695-21kworker/dying09:19:560
10050570,0irq/346-484840054-21kswapd011:42:571
81560,0rcu_preempt3-21ksoftirqd/010:14:590
81560,0rcu_preempt19-21ksoftirqd/112:29:541
81560,0rcu_preempt16925-21apt-get08:34:470
10050560,0irq/346-484840054-21kswapd009:57:550
10050560,0irq/346-484840030925-1kworker/1:1H09:16:201
10050560,0irq/346-484840030925-1kworker/1:1H09:16:201
10050560,0irq/346-484840024963-1kworker/1:0H12:29:281
10050560,0irq/346-484840012578-1kworker/1:2H12:23:061
81550,0rcu_preempt3-21ksoftirqd/011:34:540
81550,0rcu_preempt3-21ksoftirqd/009:44:530
81550,0rcu_preempt3-21ksoftirqd/008:20:030
81550,0rcu_preempt3-21ksoftirqd/007:49:570
81540,0rcu_preempt4993-21ping08:25:020
81540,0rcu_preempt3-21ksoftirqd/009:50:050
81540,0rcu_preempt3-21ksoftirqd/009:29:550
81540,0rcu_preempt19718-1kworker/1:3H11:14:351
10050540,0irq/346-48484006068-1kworker/1:3H10:05:141
10050540,0irq/346-484840054-21kswapd010:26:301
10050540,0irq/346-484840054-21kswapd009:36:011
10050540,0irq/346-484840030220-1kworker/1:0H11:56:571
10050540,0irq/346-484840018560-1kworker/1:1H11:19:181
81530,0rcu_preempt3-21ksoftirqd/012:14:570
81530,0rcu_preempt3-21ksoftirqd/011:30:010
81530,0rcu_preempt3-21ksoftirqd/010:50:020
81530,0rcu_preempt3-21ksoftirqd/008:29:500
10050530,0irq/346-484840024507-1kworker/1:0H11:51:081
10050530,0irq/346-48484001057-1kworker/1:0H09:49:401
10050530,0irq/346-48484001057-1kworker/1:0H09:46:481
81520,0rcu_preempt32243-21ssh11:25:000
81520,0rcu_preempt3-21ksoftirqd/012:22:300
81520,0rcu_preempt3-21ksoftirqd/010:44:360
81520,0rcu_preempt3-21ksoftirqd/009:09:550
81520,0rcu_preempt3-21ksoftirqd/009:09:550
81520,0rcu_preempt3-21ksoftirqd/007:04:560
81520,0rcu_preempt19558-21ssh11:12:070
81520,0rcu_preempt19-21ksoftirqd/107:59:091
10050520,0irq/346-48484008537-1kworker/1:2H09:40:541
10050520,0irq/346-484840054-21kswapd010:52:421
10050520,0irq/346-484840054-21kswapd009:57:051
10050520,0irq/346-484840018560-1kworker/1:1H11:20:001
81510,0rcu_preempt6820-21kworker/0:011:41:220
81510,0rcu_preempt3-21ksoftirqd/009:00:020
81510,0rcu_preempt3-21ksoftirqd/008:54:460
10050510,0irq/346-48484006531-1kworker/1:2H11:45:021
10050510,0irq/346-48484006531-1kworker/1:2H11:45:021
10050510,0irq/346-484840030925-1kworker/1:1H09:11:481
10050510,0irq/346-484840030925-1kworker/1:1H09:11:481
10050510,0irq/346-484840013676-1kworker/1:2H10:03:371
81500,0rcu_preempt3-21ksoftirqd/008:15:040
81500,0rcu_preempt3-21ksoftirqd/007:16:350
81500,0rcu_preempt1096-21kworker/0:211:22:470
10050500,0irq/346-48484007659-1kworker/1:1H12:09:451
10050500,0irq/346-48484005764-21ssh12:05:001
81490,0rcu_preempt3-21ksoftirqd/008:05:540
10050490,0irq/346-484840054-21kswapd012:17:161
10050490,0irq/346-484840029082-21ssh10:15:201
10050490,0irq/346-484840018560-1kworker/1:1H11:36:471
81480,0rcu_preempt930-21ntpq12:00:030
81480,0rcu_preempt3-21ksoftirqd/010:02:280
81480,0rcu_preempt3-21ksoftirqd/007:59:580
81480,0rcu_preempt3-21ksoftirqd/007:59:580
81480,0rcu_preempt28998-21taskset07:30:140
81480,0rcu_preempt19-21ksoftirqd/108:19:491
2122099483,0cyclictest0-21swapper/111:04:581
21219994815,0cyclictest24505-21ping07:39:460
10050480,0irq/346-484840027108-1kworker/1:1H10:48:361
10050480,0irq/346-484840025278-21ssh10:11:051
81470,0rcu_preempt19-21ksoftirqd/107:39:471
10050460,0irq/346-48484000-21swapper/107:19:371
81450,0rcu_preempt24505-21ping07:35:021
10050450,0irq/346-48484008698-1kworker/1:1H11:03:201
10050450,0irq/346-48484003940-1kworker/1:0H12:38:031
10050450,0irq/346-484840024505-21ping07:29:541
81440,0rcu_preempt3-21ksoftirqd/007:09:580
10050440,0irq/346-48484003772-1kworker/1:0H10:58:191
81430,0rcu_preempt21422-1kworker/1:1H08:50:041
21219994311,0cyclictest24505-21ping07:19:370
2121999431,0cyclictest24505-21ping07:39:380
81420,0rcu_preempt24505-21ping07:19:561
81420,0rcu_preempt19-21ksoftirqd/109:22:101
81420,0rcu_preempt19-21ksoftirqd/108:15:061
81410,0rcu_preempt3-21ksoftirqd/007:47:270
81410,0rcu_preempt19-21ksoftirqd/108:34:471
81410,0rcu_preempt19-21ksoftirqd/107:24:551
81410,0rcu_preempt17946-21kworker/0:007:24:450
81400,0rcu_preempt19-21ksoftirqd/108:00:091
81400,0rcu_preempt19-21ksoftirqd/108:00:091
81400,0rcu_preempt19-21ksoftirqd/107:45:021
81390,0rcu_preempt19-21ksoftirqd/108:41:491
81380,0rcu_preempt19-21ksoftirqd/108:59:481
81380,0rcu_preempt19-21ksoftirqd/108:09:351
10050380,0irq/346-484840019887-21chrt07:04:501
81370,0rcu_preempt19-21ksoftirqd/108:29:511
81370,0rcu_preempt19-21ksoftirqd/107:09:371
81360,0rcu_preempt19-21ksoftirqd/108:55:021
10050360,0irq/346-48484000-21swapper/109:06:281
10050340,0irq/346-484840020228-21munin-node1
81330,0rcu_preempt19-21ksoftirqd/107:50:031
10050300,0irq/346-48484000-21swapper/108:14:361
10050270,0irq/346-48484000-21swapper/108:27:071
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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