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2026-02-17 - 18:22
[ 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 Tue Feb 17, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811100,0rcu_preempt3-21ksoftirqd/011:33:330
811090,0rcu_preempt19-21ksoftirqd/111:56:181
811050,0rcu_preempt3-21ksoftirqd/012:29:070
811050,0rcu_preempt19-21ksoftirqd/111:31:281
81990,0rcu_preempt19-21ksoftirqd/110:44:171
81950,0rcu_preempt19-21ksoftirqd/107:39:271
81920,0rcu_preempt19-21ksoftirqd/110:09:411
81910,0rcu_preempt19-21ksoftirqd/111:49:501
81850,0rcu_preempt19-21ksoftirqd/107:19:261
81850,0rcu_preempt19-21ksoftirqd/107:19:261
81820,0rcu_preempt25190-1kworker/1:0H09:54:461
81820,0rcu_preempt19-21ksoftirqd/112:03:321
81810,0rcu_preempt3-21ksoftirqd/011:46:170
81790,0rcu_preempt19-21ksoftirqd/111:39:391
81790,0rcu_preempt19-21ksoftirqd/109:59:361
81790,0rcu_preempt19-21ksoftirqd/107:19:261
81770,0rcu_preempt3-21ksoftirqd/011:59:530
81750,0rcu_preempt3-21ksoftirqd/010:20:080
81730,0rcu_preempt19-21ksoftirqd/112:13:231
81700,0rcu_preempt18529-21apt-get08:34:350
81670,0rcu_preempt6644-21ping08:24:420
81650,0rcu_preempt19-21ksoftirqd/110:27:111
81640,0rcu_preempt19-21ksoftirqd/112:39:241
81630,0rcu_preempt3-21ksoftirqd/008:54:440
81620,0rcu_preempt11907-21apt-get12:04:340
81620,0rcu_preempt11907-21apt-get12:04:340
81610,0rcu_preempt19-21ksoftirqd/107:59:581
10050600,0irq/346-484840054-21kswapd008:19:280
81590,0rcu_preempt19-21ksoftirqd/111:19:441
81590,0rcu_preempt19-21ksoftirqd/110:19:371
10050590,0irq/346-484840054-21kswapd011:49:510
81580,0rcu_preempt19303-21ntp_states10:34:480
81570,0rcu_preempt19-21ksoftirqd/110:58:431
10050570,0irq/346-48484003-21ksoftirqd/008:14:230
81560,0rcu_preempt3-21ksoftirqd/007:09:380
10050560,0irq/346-484840015109-1kworker/0:0H09:29:490
81550,0rcu_preempt3-21ksoftirqd/010:55:000
81550,0rcu_preempt13446-21ssh10:29:351
81540,0rcu_preempt3-21ksoftirqd/010:04:390
81540,0rcu_preempt26074-21kworker/0:112:10:450
81540,0rcu_preempt19-21ksoftirqd/110:17:571
81540,0rcu_preempt19-21ksoftirqd/110:17:571
81540,0rcu_preempt19-21ksoftirqd/109:37:461
81540,0rcu_preempt1339-21snmpd10:49:480
10050540,0irq/346-484840054-21kswapd009:41:120
9950530,0irq/345-48484000-21swapper/007:07:290
81530,0rcu_preempt3-21ksoftirqd/012:21:380
81530,0rcu_preempt3-21ksoftirqd/009:21:560
81530,0rcu_preempt19-21ksoftirqd/110:44:471
81530,0rcu_preempt19-21ksoftirqd/109:16:201
81530,0rcu_preempt19-21ksoftirqd/109:16:201
81530,0rcu_preempt19-21ksoftirqd/108:44:391
15292530,0chrt10050irq/346-484840007:40:160
10050530,0irq/346-484840054-21kswapd011:39:290
10050530,0irq/346-484840054-21kswapd011:14:580
10050530,0irq/346-484840054-21kswapd010:59:370
81520,0rcu_preempt3-21ksoftirqd/011:54:500
81520,0rcu_preempt3-21ksoftirqd/011:09:420
81520,0rcu_preempt3-21ksoftirqd/010:24:350
81520,0rcu_preempt3-21ksoftirqd/009:49:460
81520,0rcu_preempt3-21ksoftirqd/008:44:410
81520,0rcu_preempt3-21ksoftirqd/008:16:110
81520,0rcu_preempt0-21swapper/111:08:411
10050520,0irq/346-484840054-21kswapd009:29:010
81510,0rcu_preempt3-21ksoftirqd/011:09:240
81510,0rcu_preempt3-21ksoftirqd/010:33:130
81510,0rcu_preempt3-21ksoftirqd/009:54:360
81510,0rcu_preempt3118-21cron10:19:230
81510,0rcu_preempt3118-21cron10:19:230
81510,0rcu_preempt19-21ksoftirqd/109:44:411
81510,0rcu_preempt19-21ksoftirqd/109:19:441
2281299518,0cyclictest15658-21apt-get09:59:350
10050510,0irq/346-484840054-21kswapd011:35:330
10050510,0irq/346-484840054-21kswapd009:10:100
10050510,0irq/346-48484004995-21munin-node0
10050510,0irq/346-48484004995-21munin-node0
81500,0rcu_preempt3-21ksoftirqd/010:43:390
81500,0rcu_preempt3-21ksoftirqd/008:59:440
81500,0rcu_preempt3-21ksoftirqd/008:29:340
81500,0rcu_preempt29328-21kworker/1:008:19:561
81490,0rcu_preempt3-21ksoftirqd/012:14:340
81490,0rcu_preempt3-21ksoftirqd/008:39:340
81490,0rcu_preempt3-21ksoftirqd/008:08:360
81490,0rcu_preempt3-21ksoftirqd/007:19:390
81490,0rcu_preempt3-21ksoftirqd/007:19:390
81490,0rcu_preempt28831-21kworker/0:011:23:040
81490,0rcu_preempt28432-21chrt10:44:250
10050490,0irq/346-484840041ktimersoftd/007:59:350
81480,0rcu_preempt3-21ksoftirqd/012:36:460
81480,0rcu_preempt3-21ksoftirqd/009:14:450
81480,0rcu_preempt3-21ksoftirqd/009:14:450
81470,0rcu_preempt32746-21kworker/0:207:49:390
81470,0rcu_preempt3-21ksoftirqd/011:28:280
81470,0rcu_preempt3-21ksoftirqd/010:09:450
81470,0rcu_preempt3-21ksoftirqd/007:59:050
81470,0rcu_preempt19-21ksoftirqd/112:04:481
81470,0rcu_preempt19-21ksoftirqd/112:04:481
81470,0rcu_preempt19-21ksoftirqd/107:04:341
81460,0rcu_preempt3-21ksoftirqd/009:34:350
81460,0rcu_preempt3-21ksoftirqd/009:04:430
81460,0rcu_preempt19-21ksoftirqd/111:27:241
81460,0rcu_preempt19-21ksoftirqd/111:09:431
81460,0rcu_preempt19-21ksoftirqd/108:24:361
81460,0rcu_preempt14387-21ssh09:25:101
81450,0rcu_preempt29328-21kworker/1:008:59:451
81450,0rcu_preempt19-21ksoftirqd/108:10:001
81450,0rcu_preempt1426-21munin-node12:29:351
81450,0rcu_preempt1426-21munin-node12:29:351
81450,0rcu_preempt1301-21awk09:44:450
81440,0rcu_preempt19-21ksoftirqd/111:14:491
81440,0rcu_preempt19-21ksoftirqd/109:39:281
81440,0rcu_preempt19-21ksoftirqd/109:30:401
81440,0rcu_preempt19-21ksoftirqd/108:15:571
81440,0rcu_preempt1470-21runrttasks08:41:201
81430,0rcu_preempt19-21ksoftirqd/112:15:301
81430,0rcu_preempt19-21ksoftirqd/111:04:101
81430,0rcu_preempt19-21ksoftirqd/107:57:001
81430,0rcu_preempt19-21ksoftirqd/107:24:591
2281299436,0cyclictest0-21swapper/007:44:530
10050430,0irq/346-484840026105-21ping07:19:240
81420,0rcu_preempt19-21ksoftirqd/110:49:411
81420,0rcu_preempt19-21ksoftirqd/109:13:591
81420,0rcu_preempt19-21ksoftirqd/108:57:561
22812994214,0cyclictest28522-21munin-node0
81410,0rcu_preempt3-21ksoftirqd/007:38:240
81410,0rcu_preempt3-21ksoftirqd/007:38:240
81410,0rcu_preempt19-21ksoftirqd/112:24:361
81410,0rcu_preempt19-21ksoftirqd/112:23:571
81410,0rcu_preempt19-21ksoftirqd/111:36:121
81410,0rcu_preempt19-21ksoftirqd/109:52:351
81410,0rcu_preempt19-21ksoftirqd/108:07:461
81410,0rcu_preempt19-21ksoftirqd/107:48:381
81400,0rcu_preempt29648-21chrt09:06:391
81400,0rcu_preempt19-21ksoftirqd/110:04:431
22812994011,0cyclictest30689-1kworker/0:2H07:31:480
22812994011,0cyclictest30689-1kworker/0:2H07:31:480
81390,0rcu_preempt24195-21ps08:49:480
81390,0rcu_preempt19-21ksoftirqd/111:44:451
81390,0rcu_preempt19-21ksoftirqd/107:34:451
81390,0rcu_preempt19-21ksoftirqd/107:34:451
81390,0rcu_preempt19-21ksoftirqd/107:29:481
81390,0rcu_preempt19-21ksoftirqd/107:29:481
81390,0rcu_preempt19-21ksoftirqd/107:14:021
81380,0rcu_preempt19-21ksoftirqd/110:36:311
81380,0rcu_preempt19-21ksoftirqd/108:38:031
81380,0rcu_preempt19-21ksoftirqd/108:33:311
81370,0rcu_preempt19-21ksoftirqd/108:50:171
81370,0rcu_preempt19-21ksoftirqd/107:51:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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