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2026-02-28 - 08:48
[ 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 Sat Feb 28, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10050870,0irq/346-4848400851-21rngd22:38:010
81640,0rcu_preempt6087-21ssh21:54:410
81640,0rcu_preempt17235-1kworker/0:3H22:10:040
9950630,0irq/345-484840019887-1kworker/0:0H21:37:250
81610,0rcu_preempt3-21ksoftirqd/019:59:150
81590,0rcu_preempt3-21ksoftirqd/000:24:380
111590,0rcuc/011540-1kworker/0:0H00:14:390
81580,0rcu_preempt1769-21ping20:09:440
81570,0rcu_preempt19-21ksoftirqd/100:06:571
81560,0rcu_preempt3-21ksoftirqd/021:29:340
81560,0rcu_preempt1613-21kworker/0:123:09:340
81550,0rcu_preempt3-21ksoftirqd/023:44:310
81550,0rcu_preempt21228-21ping19:19:450
81550,0rcu_preempt19-21ksoftirqd/100:00:091
10050550,0irq/346-48484000-21swapper/022:01:450
81540,0rcu_preempt7000-21wc22:29:150
81540,0rcu_preempt3-21ksoftirqd/023:49:410
81540,0rcu_preempt3-21ksoftirqd/000:09:420
81540,0rcu_preempt3-21ksoftirqd/000:04:340
81540,0rcu_preempt19667-21ps00:19:380
81540,0rcu_preempt1769-21ping20:04:420
81530,0rcu_preempt3-21ksoftirqd/023:14:430
81530,0rcu_preempt3-21ksoftirqd/021:44:350
81530,0rcu_preempt3-21ksoftirqd/021:39:360
81530,0rcu_preempt28690-21apt-get00:29:230
81520,0rcu_preempt9843-21kworker/0:121:19:090
81520,0rcu_preempt3-21ksoftirqd/023:54:310
81520,0rcu_preempt3-21ksoftirqd/023:42:120
81520,0rcu_preempt3-21ksoftirqd/022:54:300
81520,0rcu_preempt3-21ksoftirqd/022:44:230
81520,0rcu_preempt3-21ksoftirqd/022:05:290
81520,0rcu_preempt3-21ksoftirqd/000:36:540
81520,0rcu_preempt28094-21ssh23:23:080
10050520,0irq/346-48484008522-1kworker/1:3H23:37:411
10050520,0irq/346-484840054-21kswapd021:21:381
81510,0rcu_preempt3-21ksoftirqd/023:59:340
81510,0rcu_preempt3-21ksoftirqd/023:29:410
81510,0rcu_preempt3-21ksoftirqd/022:49:330
81510,0rcu_preempt3-21ksoftirqd/021:49:250
81510,0rcu_preempt3-21ksoftirqd/021:28:150
81510,0rcu_preempt3-21ksoftirqd/020:44:400
81510,0rcu_preempt3-21ksoftirqd/019:11:230
81510,0rcu_preempt2173-21kworker/0:019:39:330
10050510,0irq/346-4848400851-21rngd21:21:200
81500,0rcu_preempt3-21ksoftirqd/023:34:370
81500,0rcu_preempt3-21ksoftirqd/023:26:050
81500,0rcu_preempt3-21ksoftirqd/023:04:410
81500,0rcu_preempt3-21ksoftirqd/022:59:300
81500,0rcu_preempt3-21ksoftirqd/022:39:280
81500,0rcu_preempt3-21ksoftirqd/019:08:390
81500,0rcu_preempt19-21ksoftirqd/121:59:301
10050500,0irq/346-4848400851-21rngd21:13:040
81490,0rcu_preempt3-21ksoftirqd/020:14:310
81480,0rcu_preempt3-21ksoftirqd/022:24:140
81480,0rcu_preempt3-21ksoftirqd/022:24:130
81480,0rcu_preempt3-21ksoftirqd/022:14:270
81480,0rcu_preempt3-21ksoftirqd/021:04:370
81480,0rcu_preempt3-21ksoftirqd/020:34:360
81480,0rcu_preempt3-21ksoftirqd/020:24:050
81480,0rcu_preempt3-21ksoftirqd/019:54:310
81480,0rcu_preempt2832-21kworker/0:319:14:300
81480,0rcu_preempt19-21ksoftirqd/122:36:021
81480,0rcu_preempt19-21ksoftirqd/120:16:021
81480,0rcu_preempt19071-21iwlist20:49:320
81480,0rcu_preempt12026-21apt-get20:29:240
81480,0rcu_preempt0-21swapper/100:31:471
81470,0rcu_preempt3-21ksoftirqd/019:49:360
81470,0rcu_preempt25059-21diskmemload22:29:401
81470,0rcu_preempt25059-21diskmemload00:26:151
81470,0rcu_preempt19-21ksoftirqd/123:08:271
81470,0rcu_preempt19-21ksoftirqd/121:30:241
81470,0rcu_preempt19-21ksoftirqd/119:59:431
10050470,0irq/346-48484005547-21ssh22:59:411
81460,0rcu_preempt3-21ksoftirqd/020:59:240
81460,0rcu_preempt3-21ksoftirqd/020:54:330
81460,0rcu_preempt19-21ksoftirqd/122:08:341
81460,0rcu_preempt19-21ksoftirqd/120:04:591
81460,0rcu_preempt19-21ksoftirqd/119:39:501
10050460,0irq/346-48484003-21ksoftirqd/019:45:530
81450,0rcu_preempt54-21kswapd022:39:531
81450,0rcu_preempt19-21ksoftirqd/123:33:431
81450,0rcu_preempt19-21ksoftirqd/122:48:551
81450,0rcu_preempt19-21ksoftirqd/121:34:291
81450,0rcu_preempt19-21ksoftirqd/119:25:111
81450,0rcu_preempt19-21ksoftirqd/100:34:241
81450,0rcu_preempt19-21ksoftirqd/100:17:251
10050450,0irq/346-48484000-21swapper/121:10:431
81440,0rcu_preempt3-21ksoftirqd/020:26:290
81440,0rcu_preempt19-21ksoftirqd/123:14:321
81440,0rcu_preempt19-21ksoftirqd/123:13:281
81440,0rcu_preempt19-21ksoftirqd/121:58:291
81440,0rcu_preempt19-21ksoftirqd/121:39:421
81440,0rcu_preempt19-21ksoftirqd/120:24:381
81440,0rcu_preempt19-21ksoftirqd/120:19:381
81440,0rcu_preempt19-21ksoftirqd/119:58:301
81430,0rcu_preempt6197-21kworker/1:123:40:121
81430,0rcu_preempt3-21ksoftirqd/020:39:290
81430,0rcu_preempt19-21ksoftirqd/123:47:131
81430,0rcu_preempt19-21ksoftirqd/122:26:581
81430,0rcu_preempt19-21ksoftirqd/122:16:161
81430,0rcu_preempt19-21ksoftirqd/122:09:231
81430,0rcu_preempt19-21ksoftirqd/121:49:331
81430,0rcu_preempt19-21ksoftirqd/120:39:141
81430,0rcu_preempt19-21ksoftirqd/120:11:541
10050430,0irq/346-48484000-21swapper/122:50:341
81420,0rcu_preempt19-21ksoftirqd/122:20:401
81420,0rcu_preempt19-21ksoftirqd/119:49:161
81420,0rcu_preempt19-21ksoftirqd/119:44:441
81420,0rcu_preempt19-21ksoftirqd/119:14:361
1793899421,0cyclictest21228-21ping19:25:500
81410,0rcu_preempt3-21ksoftirqd/019:34:460
81410,0rcu_preempt3-21ksoftirqd/019:29:300
81410,0rcu_preempt19-21ksoftirqd/123:55:221
81410,0rcu_preempt19-21ksoftirqd/123:50:031
81410,0rcu_preempt19-21ksoftirqd/123:24:431
81410,0rcu_preempt19-21ksoftirqd/123:21:421
81410,0rcu_preempt19-21ksoftirqd/121:44:171
81410,0rcu_preempt19-21ksoftirqd/121:24:381
81410,0rcu_preempt19-21ksoftirqd/100:20:581
81400,0rcu_preempt19-21ksoftirqd/120:54:311
81400,0rcu_preempt19-21ksoftirqd/119:34:411
81400,0rcu_preempt19-21ksoftirqd/119:19:271
81400,0rcu_preempt19-21ksoftirqd/100:09:351
81390,0rcu_preempt19-21ksoftirqd/122:55:401
81390,0rcu_preempt19-21ksoftirqd/121:19:061
81390,0rcu_preempt18831-21diskstats20:49:291
81390,0rcu_preempt1-21init19:06:591
81380,0rcu_preempt19-21ksoftirqd/121:04:351
81380,0rcu_preempt19-21ksoftirqd/120:43:491
81370,0rcu_preempt19-21ksoftirqd/120:30:511
81370,0rcu_preempt19-21ksoftirqd/119:13:051
81370,0rcu_preempt18170-1kworker/1:2H20:47:431
81360,0rcu_preempt19-21ksoftirqd/121:03:461
212281350,0ping9950irq/345-484840019:34:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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