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2026-02-21 - 07:53
[ 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 Sat Feb 21, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81910,0rcu_preempt19-21ksoftirqd/123:34:201
63972650,0chrt10050irq/346-484840020:03:460
320822610,0chrt10050irq/346-484840019:42:210
81580,0rcu_preempt31682-21ssh22:15:060
12282580,0chrt10050irq/346-484840019:46:310
81570,0rcu_preempt4089-21kworker/0:119:09:300
81560,0rcu_preempt3-21ksoftirqd/022:24:210
81560,0rcu_preempt3-21ksoftirqd/021:59:400
81560,0rcu_preempt3-21ksoftirqd/020:44:320
81560,0rcu_preempt29976-21runrttasks23:49:310
81550,0rcu_preempt3-21ksoftirqd/022:09:310
81550,0rcu_preempt3-21ksoftirqd/000:14:350
81550,0rcu_preempt3-21ksoftirqd/000:14:350
81550,0rcu_preempt19-21ksoftirqd/123:04:371
81540,0rcu_preempt3-21ksoftirqd/020:19:440
81530,0rcu_preempt3-21ksoftirqd/023:24:440
81530,0rcu_preempt3-21ksoftirqd/021:24:210
81530,0rcu_preempt3-21ksoftirqd/021:09:390
81530,0rcu_preempt3-21ksoftirqd/000:29:400
81530,0rcu_preempt3-21ksoftirqd/000:24:470
81530,0rcu_preempt2647-1kworker/0:2H21:19:210
81530,0rcu_preempt14837-21kworker/0:023:09:310
81530,0rcu_preempt1042-21ssh21:14:330
81520,0rcu_preempt3-21ksoftirqd/023:55:150
81520,0rcu_preempt3-21ksoftirqd/023:04:490
81520,0rcu_preempt3-21ksoftirqd/022:39:430
81520,0rcu_preempt3-21ksoftirqd/020:24:470
81520,0rcu_preempt3-21ksoftirqd/020:24:470
81520,0rcu_preempt26634-21apt-get23:14:300
81520,0rcu_preempt14483-21ssh23:34:210
81520,0rcu_preempt10898-21munin-node0
81520,0rcu_preempt10566-21kworker/0:020:16:270
10050520,0irq/346-484840015384-21ssh00:06:290
10050520,0irq/346-484840015384-21ssh00:06:290
81510,0rcu_preempt21072-21ssh21:34:100
254792510,0chrt10050irq/346-484840019:22:110
81500,0rcu_preempt9950irq/345-484840022:54:381
81500,0rcu_preempt3-21ksoftirqd/023:29:480
81500,0rcu_preempt3-21ksoftirqd/022:34:320
81500,0rcu_preempt3-21ksoftirqd/021:39:380
81500,0rcu_preempt3-21ksoftirqd/020:08:080
81500,0rcu_preempt3-21ksoftirqd/019:57:490
81500,0rcu_preempt3-21ksoftirqd/019:14:390
81500,0rcu_preempt3-21ksoftirqd/019:07:000
81490,0rcu_preempt3-21ksoftirqd/023:39:310
81490,0rcu_preempt3-21ksoftirqd/022:49:470
81490,0rcu_preempt3-21ksoftirqd/022:49:470
81490,0rcu_preempt3-21ksoftirqd/022:29:440
81490,0rcu_preempt3-21ksoftirqd/021:54:310
81490,0rcu_preempt3-21ksoftirqd/020:12:290
81490,0rcu_preempt3-21ksoftirqd/019:49:380
81490,0rcu_preempt3-21ksoftirqd/000:02:320
10050490,0irq/346-48484000-21swapper/021:45:060
81480,0rcu_preempt3-21ksoftirqd/023:20:540
81480,0rcu_preempt3-21ksoftirqd/022:59:210
81480,0rcu_preempt3-21ksoftirqd/020:54:450
81480,0rcu_preempt3-21ksoftirqd/000:09:350
81470,0rcu_preempt4495-21apt-get21:49:310
81470,0rcu_preempt3-21ksoftirqd/022:59:320
81470,0rcu_preempt3-21ksoftirqd/000:19:310
81470,0rcu_preempt23828-21kworker/0:122:09:150
81470,0rcu_preempt19-21ksoftirqd/120:13:351
81460,0rcu_preempt3-21ksoftirqd/022:24:500
81460,0rcu_preempt3-21ksoftirqd/021:34:410
81460,0rcu_preempt3-21ksoftirqd/020:59:210
81460,0rcu_preempt19-21ksoftirqd/120:19:341
81460,0rcu_preempt19-21ksoftirqd/120:14:351
81450,0rcu_preempt3-21ksoftirqd/022:44:430
81450,0rcu_preempt3-21ksoftirqd/020:49:420
81450,0rcu_preempt3-21ksoftirqd/020:39:350
81450,0rcu_preempt3-21ksoftirqd/020:34:380
81440,0rcu_preempt4089-21kworker/0:119:34:460
81440,0rcu_preempt3-21ksoftirqd/023:44:400
81440,0rcu_preempt3-21ksoftirqd/019:29:430
81440,0rcu_preempt19-21ksoftirqd/119:59:481
81440,0rcu_preempt19-21ksoftirqd/100:33:051
81440,0rcu_preempt12364-21ssh21:24:471
81430,0rcu_preempt4089-21kworker/0:119:24:430
81430,0rcu_preempt3-21ksoftirqd/021:04:450
81430,0rcu_preempt3-21ksoftirqd/020:29:370
81430,0rcu_preempt19-21ksoftirqd/122:50:401
81430,0rcu_preempt19-21ksoftirqd/122:50:401
81430,0rcu_preempt19-21ksoftirqd/122:29:441
81430,0rcu_preempt19-21ksoftirqd/121:46:291
81430,0rcu_preempt19-21ksoftirqd/120:26:171
81430,0rcu_preempt19-21ksoftirqd/120:26:171
81430,0rcu_preempt19-21ksoftirqd/119:58:511
81430,0rcu_preempt18974-21ssh22:03:311
81420,0rcu_preempt19-21ksoftirqd/123:21:431
81420,0rcu_preempt19-21ksoftirqd/123:03:451
81420,0rcu_preempt19-21ksoftirqd/122:23:471
81420,0rcu_preempt19-21ksoftirqd/122:14:371
81420,0rcu_preempt19-21ksoftirqd/121:31:091
81420,0rcu_preempt19-21ksoftirqd/121:24:181
81420,0rcu_preempt19-21ksoftirqd/100:35:191
81410,0rcu_preempt26897-21ssh23:14:351
81410,0rcu_preempt19-21ksoftirqd/123:54:331
81410,0rcu_preempt19-21ksoftirqd/123:39:451
81410,0rcu_preempt19-21ksoftirqd/122:34:521
81410,0rcu_preempt19-21ksoftirqd/122:04:311
81410,0rcu_preempt19-21ksoftirqd/120:39:301
81410,0rcu_preempt19-21ksoftirqd/120:04:561
81400,0rcu_preempt19-21ksoftirqd/123:59:221
81400,0rcu_preempt19-21ksoftirqd/122:44:401
81400,0rcu_preempt19-21ksoftirqd/122:09:301
81400,0rcu_preempt19-21ksoftirqd/121:52:261
81400,0rcu_preempt19-21ksoftirqd/120:59:301
81400,0rcu_preempt19-21ksoftirqd/100:27:021
81400,0rcu_preempt19-21ksoftirqd/100:07:371
81400,0rcu_preempt19-21ksoftirqd/100:07:371
81400,0rcu_preempt0-21swapper/123:09:441
10050400,0irq/346-484840021390-21taskset21:34:241
81390,0rcu_preempt22735-21diskstats19:14:361
81390,0rcu_preempt19-21ksoftirqd/123:50:241
81390,0rcu_preempt19-21ksoftirqd/122:24:341
81390,0rcu_preempt19-21ksoftirqd/121:54:571
81390,0rcu_preempt19-21ksoftirqd/121:43:531
81390,0rcu_preempt19-21ksoftirqd/120:54:381
81390,0rcu_preempt19-21ksoftirqd/120:49:501
81390,0rcu_preempt19-21ksoftirqd/119:48:411
81390,0rcu_preempt19-21ksoftirqd/119:08:511
81380,0rcu_preempt19-21ksoftirqd/123:44:331
81380,0rcu_preempt19-21ksoftirqd/123:34:361
81380,0rcu_preempt19-21ksoftirqd/122:39:281
81380,0rcu_preempt19-21ksoftirqd/121:16:191
81380,0rcu_preempt19-21ksoftirqd/121:14:191
81380,0rcu_preempt19-21ksoftirqd/121:07:061
81380,0rcu_preempt19-21ksoftirqd/120:34:291
81380,0rcu_preempt19-21ksoftirqd/119:09:361
81380,0rcu_preempt19-21ksoftirqd/100:22:181
81380,0rcu_preempt19-21ksoftirqd/100:14:391
81380,0rcu_preempt19-21ksoftirqd/100:14:391
81380,0rcu_preempt19-21ksoftirqd/100:13:041
10050380,0irq/346-48484006460-1kworker/1:2H23:29:171
81370,0rcu_preempt19-21ksoftirqd/119:53:011
81370,0rcu_preempt19-21ksoftirqd/119:24:461
81360,0rcu_preempt19-21ksoftirqd/120:45:491
81360,0rcu_preempt19-21ksoftirqd/120:33:171
81350,0rcu_preempt19-21ksoftirqd/119:39:481
1699340,0migration/128425-21taskset19:29:491
81310,0rcu_preempt0-21swapper/119:20:151
81290,0rcu_preempt19-21ksoftirqd/119:34:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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