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2026-02-02 - 13:21
[ 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 Mon Feb 02, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81920,0rcu_preempt19-21ksoftirqd/122:01:221
10050790,0irq/346-4848400851-21rngd00:09:410
10050780,0irq/346-484840030330-1kworker/0:3H22:43:080
81770,0rcu_preempt3-21ksoftirqd/023:40:020
10050730,0irq/346-484840054-21kswapd023:26:230
81720,0rcu_preempt7426-21ssh21:44:580
81720,0rcu_preempt3-21ksoftirqd/019:24:590
10050710,0irq/346-48484006205-1kworker/0:0H22:19:000
10050710,0irq/346-484840054-21kswapd023:19:130
10050710,0irq/346-48484002875-1kworker/0:0H23:55:240
10050700,0irq/346-48484001192-1kworker/0:3H22:13:510
10050690,0irq/346-48484006205-1kworker/0:0H22:37:480
10050690,0irq/346-484840020381-1kworker/0:0H23:37:560
10050680,0irq/346-484840017243-1kworker/0:1H21:23:550
10050680,0irq/346-484840017243-1kworker/0:1H21:23:550
81670,0rcu_preempt3-21ksoftirqd/020:04:590
10050670,0irq/346-48484007885-1kworker/0:1H00:00:390
10050670,0irq/346-484840030330-1kworker/0:3H22:51:390
10050670,0irq/346-484840012648-1kworker/0:0H22:01:000
81650,0rcu_preempt19-21ksoftirqd/121:04:561
81650,0rcu_preempt15715-21ping20:30:050
81630,0rcu_preempt54-21kswapd023:59:431
81630,0rcu_preempt1683-21grep23:50:050
81620,0rcu_preempt3-21ksoftirqd/022:30:060
81620,0rcu_preempt15715-21ping20:20:080
81610,0rcu_preempt26185-21php-cgi22:04:560
81610,0rcu_preempt19-21ksoftirqd/121:50:051
81610,0rcu_preempt15715-21ping20:25:110
81600,0rcu_preempt3-21ksoftirqd/023:05:130
81600,0rcu_preempt19-21ksoftirqd/123:55:061
81590,0rcu_preempt15647-21aten_rapower_cu00:04:470
81580,0rcu_preempt3-21ksoftirqd/023:49:360
81570,0rcu_preempt3-21ksoftirqd/021:43:350
81570,0rcu_preempt3-21ksoftirqd/021:13:190
81570,0rcu_preempt3-21ksoftirqd/020:40:050
81560,0rcu_preempt3-21ksoftirqd/022:20:070
81560,0rcu_preempt3-21ksoftirqd/020:55:080
81560,0rcu_preempt3-21ksoftirqd/020:00:000
81560,0rcu_preempt3-21ksoftirqd/000:29:580
81560,0rcu_preempt29402-21apt-get20:44:500
81560,0rcu_preempt1260-21ping19:34:500
81560,0rcu_preempt1130-21ssh21:39:000
10050560,0irq/346-484840015335-21apt-get21:19:491
10050560,0irq/346-484840015335-21apt-get21:19:491
81550,0rcu_preempt3-21ksoftirqd/023:30:010
81550,0rcu_preempt3-21ksoftirqd/022:54:510
81550,0rcu_preempt3-21ksoftirqd/021:25:120
81550,0rcu_preempt3-21ksoftirqd/021:04:570
81550,0rcu_preempt3-21ksoftirqd/020:59:490
81550,0rcu_preempt3-21ksoftirqd/020:59:490
81550,0rcu_preempt3-21ksoftirqd/019:54:590
81550,0rcu_preempt18904-21head20:10:100
81540,0rcu_preempt3-21ksoftirqd/022:46:300
81540,0rcu_preempt3-21ksoftirqd/020:38:040
81540,0rcu_preempt18341-21apt-get22:29:471
81530,0rcu_preempt3-21ksoftirqd/000:34:500
81530,0rcu_preempt19-21ksoftirqd/123:09:491
10050530,0irq/346-484840013273-21ssh23:29:511
81520,0rcu_preempt3-21ksoftirqd/019:53:570
81520,0rcu_preempt19-21ksoftirqd/100:10:061
10050520,0irq/346-484840029546-21munin-node0
9950510,0irq/345-4848400851-21rngd23:45:361
81510,0rcu_preempt4563-21kworker/0:100:19:360
81510,0rcu_preempt3-21ksoftirqd/021:50:000
81510,0rcu_preempt3-21ksoftirqd/020:50:000
81510,0rcu_preempt3-21ksoftirqd/000:21:150
10050510,0irq/346-484840015553-21sendmail-msp22:59:551
10050510,0irq/346-48484000-21swapper/121:39:471
9950500,0irq/345-484840025677-1kworker/1:1H20:39:511
81500,0rcu_preempt3-21ksoftirqd/023:13:430
81500,0rcu_preempt19-21ksoftirqd/120:05:081
10050500,0irq/346-4848400223822sleep123:05:371
10050500,0irq/346-48484000-21swapper/119:59:391
81490,0rcu_preempt3-21ksoftirqd/022:28:010
81490,0rcu_preempt3-21ksoftirqd/019:14:560
81480,0rcu_preempt5076-21diskmemload23:52:461
10050480,0irq/346-484840054-21kswapd000:39:381
81470,0rcu_preempt3-21ksoftirqd/021:17:330
81470,0rcu_preempt3-21ksoftirqd/000:26:440
81470,0rcu_preempt19-21ksoftirqd/122:25:021
81470,0rcu_preempt19-21ksoftirqd/122:15:021
81470,0rcu_preempt19-21ksoftirqd/120:19:531
81470,0rcu_preempt19-21ksoftirqd/120:09:541
81470,0rcu_preempt19-21ksoftirqd/119:39:551
81470,0rcu_preempt19-21ksoftirqd/119:39:551
81470,0rcu_preempt19-21ksoftirqd/119:29:501
81470,0rcu_preempt19-21ksoftirqd/119:29:501
81470,0rcu_preempt19-21ksoftirqd/119:24:501
10050470,0irq/346-484840027239-1kworker/1:1H21:35:011
81460,0rcu_preempt3-21ksoftirqd/023:21:230
81460,0rcu_preempt24144-21kworker/1:122:43:501
81460,0rcu_preempt21285-21kworker/0:019:09:520
81460,0rcu_preempt19-21ksoftirqd/123:34:491
81460,0rcu_preempt19-21ksoftirqd/123:26:021
81460,0rcu_preempt19-21ksoftirqd/122:54:521
81460,0rcu_preempt19-21ksoftirqd/122:20:241
81460,0rcu_preempt19-21ksoftirqd/121:44:491
81460,0rcu_preempt19-21ksoftirqd/121:29:491
81460,0rcu_preempt19-21ksoftirqd/119:49:511
81460,0rcu_preempt19-21ksoftirqd/119:19:511
81460,0rcu_preempt19-21ksoftirqd/100:04:551
81460,0rcu_preempt17120-21kworker/0:023:00:550
10050460,0irq/346-4848400851-21rngd19:39:500
10050460,0irq/346-4848400851-21rngd19:39:500
10050460,0irq/346-484840025669-21aten_rapower_cu00:14:501
81450,0rcu_preempt32276-1kworker/1:0H20:59:491
81450,0rcu_preempt32276-1kworker/1:0H20:59:491
81450,0rcu_preempt3-21ksoftirqd/021:59:150
81450,0rcu_preempt3-21ksoftirqd/020:17:270
81450,0rcu_preempt31894-21ssh23:15:061
81450,0rcu_preempt19-21ksoftirqd/123:19:501
81450,0rcu_preempt19-21ksoftirqd/122:34:501
81450,0rcu_preempt19-21ksoftirqd/122:09:491
81450,0rcu_preempt19-21ksoftirqd/120:55:071
81450,0rcu_preempt19-21ksoftirqd/119:44:491
81450,0rcu_preempt19-21ksoftirqd/119:34:531
81450,0rcu_preempt19-21ksoftirqd/119:19:401
81450,0rcu_preempt19-21ksoftirqd/100:30:011
81450,0rcu_preempt19-21ksoftirqd/100:25:031
10050450,0irq/346-48484000-21swapper/122:51:511
81440,0rcu_preempt3-21ksoftirqd/021:30:040
81440,0rcu_preempt30530-21apt-get19:09:491
81440,0rcu_preempt23160-21apt-get23:39:471
81440,0rcu_preempt19-21ksoftirqd/122:44:501
81440,0rcu_preempt19-21ksoftirqd/121:14:491
81440,0rcu_preempt19-21ksoftirqd/121:09:501
81440,0rcu_preempt19-21ksoftirqd/120:30:091
81440,0rcu_preempt19-21ksoftirqd/119:59:491
81430,0rcu_preempt937-21kworker/0:119:33:090
81430,0rcu_preempt937-21kworker/0:119:33:090
81430,0rcu_preempt19-21ksoftirqd/122:04:491
81430,0rcu_preempt19-21ksoftirqd/120:24:541
10050430,0irq/346-484840054-21kswapd000:23:161
81420,0rcu_preempt8043-21kworker/0:019:47:460
81420,0rcu_preempt5076-21diskmemload21:24:511
81420,0rcu_preempt19-21ksoftirqd/120:49:481
81410,0rcu_preempt937-21kworker/0:119:21:090
81410,0rcu_preempt19-21ksoftirqd/121:55:431
81410,0rcu_preempt19-21ksoftirqd/120:44:561
81410,0rcu_preempt19-21ksoftirqd/120:34:491
288692406,0sleep10-21swapper/119:04:491
81380,0rcu_preempt19-21ksoftirqd/120:15:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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