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2026-02-12 - 00:18
[ 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 Wed Feb 11, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811300,0rcu_preempt19-21ksoftirqd/107:39:311
81780,0rcu_preempt3-21ksoftirqd/011:25:280
81780,0rcu_preempt10632-1kworker/0:1H12:39:300
81780,0rcu_preempt10632-1kworker/0:1H12:39:300
81770,0rcu_preempt3-21ksoftirqd/011:16:300
81760,0rcu_preempt1571-21rm11:49:520
81750,0rcu_preempt3-21ksoftirqd/010:26:150
81750,0rcu_preempt3-21ksoftirqd/010:19:430
81750,0rcu_preempt3-21ksoftirqd/010:19:430
81750,0rcu_preempt3-21ksoftirqd/009:19:320
81750,0rcu_preempt3-21ksoftirqd/008:29:180
81750,0rcu_preempt3-21ksoftirqd/008:29:180
81750,0rcu_preempt3-21ksoftirqd/008:23:330
81740,0rcu_preempt3-21ksoftirqd/012:24:030
81740,0rcu_preempt3-21ksoftirqd/011:47:230
81740,0rcu_preempt3-21ksoftirqd/010:57:280
81740,0rcu_preempt3-21ksoftirqd/009:55:490
81740,0rcu_preempt3-21ksoftirqd/009:55:490
81740,0rcu_preempt3-21ksoftirqd/009:39:320
81740,0rcu_preempt3-21ksoftirqd/009:16:340
81740,0rcu_preempt3-21ksoftirqd/009:16:340
81740,0rcu_preempt3-21ksoftirqd/008:15:270
81740,0rcu_preempt3-21ksoftirqd/008:14:260
81740,0rcu_preempt3-21ksoftirqd/007:58:100
81740,0rcu_preempt3-21ksoftirqd/007:52:510
81730,0rcu_preempt5442-21kworker/0:007:45:000
81730,0rcu_preempt3-21ksoftirqd/012:31:580
81730,0rcu_preempt3-21ksoftirqd/012:08:430
81730,0rcu_preempt3-21ksoftirqd/011:40:100
81730,0rcu_preempt3-21ksoftirqd/011:30:560
81730,0rcu_preempt3-21ksoftirqd/010:34:340
81730,0rcu_preempt3-21ksoftirqd/010:32:140
81730,0rcu_preempt3-21ksoftirqd/010:11:190
81730,0rcu_preempt3-21ksoftirqd/009:48:070
81730,0rcu_preempt3-21ksoftirqd/009:09:240
81730,0rcu_preempt3-21ksoftirqd/008:01:130
81720,0rcu_preempt3-21ksoftirqd/011:55:330
81720,0rcu_preempt3-21ksoftirqd/011:10:490
81720,0rcu_preempt3-21ksoftirqd/011:01:210
81720,0rcu_preempt3-21ksoftirqd/010:48:320
81720,0rcu_preempt3-21ksoftirqd/010:43:080
81720,0rcu_preempt3-21ksoftirqd/010:17:010
81720,0rcu_preempt3-21ksoftirqd/010:17:010
81720,0rcu_preempt3-21ksoftirqd/010:06:240
81720,0rcu_preempt3-21ksoftirqd/009:53:060
81720,0rcu_preempt3-21ksoftirqd/009:53:060
81720,0rcu_preempt3-21ksoftirqd/009:10:520
81720,0rcu_preempt3-21ksoftirqd/009:04:280
81720,0rcu_preempt3-21ksoftirqd/008:59:200
81720,0rcu_preempt3-21ksoftirqd/008:53:100
81720,0rcu_preempt3-21ksoftirqd/008:44:530
81720,0rcu_preempt3-21ksoftirqd/008:40:040
81720,0rcu_preempt3-21ksoftirqd/007:14:510
81710,0rcu_preempt3-21ksoftirqd/012:15:340
81710,0rcu_preempt3-21ksoftirqd/012:09:550
81710,0rcu_preempt3-21ksoftirqd/012:03:580
81710,0rcu_preempt3-21ksoftirqd/011:36:160
81710,0rcu_preempt3-21ksoftirqd/011:23:040
81710,0rcu_preempt3-21ksoftirqd/011:06:500
81710,0rcu_preempt3-21ksoftirqd/010:50:270
81710,0rcu_preempt3-21ksoftirqd/010:01:380
81710,0rcu_preempt3-21ksoftirqd/009:25:300
81710,0rcu_preempt3-21ksoftirqd/008:34:460
81710,0rcu_preempt24391-21ssh09:31:590
81700,0rcu_preempt3-21ksoftirqd/012:27:500
81700,0rcu_preempt3-21ksoftirqd/009:37:100
81700,0rcu_preempt3-21ksoftirqd/008:31:220
81690,0rcu_preempt3-21ksoftirqd/008:04:580
81690,0rcu_preempt3-21ksoftirqd/007:39:300
81690,0rcu_preempt3-21ksoftirqd/007:12:250
81670,0rcu_preempt54-21kswapd007:19:410
81670,0rcu_preempt19-21ksoftirqd/111:20:451
81640,0rcu_preempt3-21ksoftirqd/007:32:200
9950620,0irq/345-48484000-21swapper/110:18:021
9950620,0irq/345-48484000-21swapper/110:18:021
81620,0rcu_preempt3-21ksoftirqd/007:29:090
81610,0rcu_preempt3-21ksoftirqd/007:39:450
81580,0rcu_preempt19-21ksoftirqd/109:39:411
10050580,0irq/346-484840023550-1kworker/1:3H12:23:381
10050540,0irq/346-484840054-21kswapd010:19:361
10050540,0irq/346-484840054-21kswapd010:19:361
9950530,0irq/345-4848400181ktimersoftd/109:49:051
9950530,0irq/345-4848400181ktimersoftd/109:36:291
9950510,0irq/345-4848400181ktimersoftd/112:06:331
81510,0rcu_preempt3-21ksoftirqd/007:04:520
9950480,0irq/345-48484000-21swapper/108:14:291
81480,0rcu_preempt19-21ksoftirqd/109:13:381
10050480,0irq/346-484840054-21kswapd008:59:311
10050480,0irq/346-4848400181ktimersoftd/109:29:141
81470,0rcu_preempt19-21ksoftirqd/110:39:301
10050470,0irq/346-4848400851-21rngd12:12:141
10050470,0irq/346-48484003315-1kworker/1:0H11:51:561
10050470,0irq/346-484840024678-1kworker/1:2H10:39:381
10050470,0irq/346-4848400181ktimersoftd/111:08:451
81460,0rcu_preempt21964-21ssh09:29:461
10050450,0irq/346-48484007448-1kworker/1:2H10:51:261
81440,0rcu_preempt19-21ksoftirqd/107:40:361
10050440,0irq/346-48484003585-1kworker/1:2H09:14:541
10050440,0irq/346-48484003585-1kworker/1:2H09:14:541
10050440,0irq/346-484840023780-21munin-node1
10050440,0irq/346-484840023550-1kworker/1:3H12:25:311
9950430,0irq/345-484840015500-1kworker/1:2H11:40:201
81430,0rcu_preempt19-21ksoftirqd/108:49:481
81430,0rcu_preempt12747-21irqstats08:04:521
81430,0rcu_preempt10158-21ping07:57:251
81430,0rcu_preempt0-21swapper/107:49:511
10050430,0irq/346-484840017549-1kworker/1:3H11:11:571
10050430,0irq/346-484840014585-1kworker/1:0H10:54:471
9950420,0irq/345-484840019635-1kworker/1:1H10:34:211
81420,0rcu_preempt54-21kswapd011:56:231
81420,0rcu_preempt19-21ksoftirqd/111:24:401
81420,0rcu_preempt19-21ksoftirqd/107:44:541
10050420,0irq/346-484840031552-1kworker/1:1H09:19:381
10050420,0irq/346-484840031392-21cat11:14:561
81410,0rcu_preempt5271-21kworker/1:210:06:431
81410,0rcu_preempt22353-21kworker/u4:210:27:431
10050410,0irq/346-484840021280-21ssh11:37:281
10050410,0irq/346-484840018647-21munin-run12:39:291
10050410,0irq/346-484840018647-21munin-run12:39:291
10050410,0irq/346-484840011002-21runrttasks09:50:301
10050410,0irq/346-484840011002-21runrttasks09:50:301
81400,0rcu_preempt19-21ksoftirqd/108:15:001
81400,0rcu_preempt19-21ksoftirqd/107:29:431
81400,0rcu_preempt19-21ksoftirqd/107:19:301
10050400,0irq/346-484840031759-21ssh11:47:591
10050400,0irq/346-484840030921-21ssh10:10:121
10050400,0irq/346-484840017730-21ssh11:34:241
9950390,0irq/345-484840028052-21/usr/sbin/munin07:14:301
81390,0rcu_preempt54-21kswapd007:20:021
81390,0rcu_preempt19-21ksoftirqd/111:04:021
81390,0rcu_preempt19-21ksoftirqd/110:02:071
81390,0rcu_preempt19-21ksoftirqd/108:24:451
81390,0rcu_preempt19-21ksoftirqd/108:24:451
81390,0rcu_preempt19-21ksoftirqd/108:22:261
81390,0rcu_preempt19-21ksoftirqd/107:29:091
10050390,0irq/346-484840013602-21ssh12:01:521
10050390,0irq/346-484840011171-21ssh12:31:241
81380,0rcu_preempt5271-21kworker/1:208:01:111
81380,0rcu_preempt32428-21apt-get10:44:411
81380,0rcu_preempt19-21ksoftirqd/112:15:241
10050380,0irq/346-484840026410-21cyclictest09:54:571
10050380,0irq/346-484840026410-21cyclictest09:54:571
81370,0rcu_preempt19-21ksoftirqd/108:29:501
81360,0rcu_preempt19-21ksoftirqd/109:04:531
81360,0rcu_preempt19-21ksoftirqd/108:44:471
221172360,0sleep121639-1kworker/1:0H08:34:401
81350,0rcu_preempt19-21ksoftirqd/108:54:421
81330,0rcu_preempt19-21ksoftirqd/107:07:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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