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2026-01-30 - 02:03
[ 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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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 Thu Jan 29, 2026 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81850,0rcu_preempt851-21rngd10:18:320
81840,0rcu_preempt17101-1kworker/0:2H11:20:020
10050820,0irq/346-484840054-21kswapd012:24:520
81730,0rcu_preempt19-21ksoftirqd/107:19:421
10050730,0irq/346-484840029917-1kworker/0:0H09:53:040
81710,0rcu_preempt3-21ksoftirqd/011:30:090
10050710,0irq/346-484840054-21kswapd011:47:570
10050710,0irq/346-484840054-21kswapd010:07:400
81690,0rcu_preempt6978-21apt-get08:29:520
81690,0rcu_preempt3-21ksoftirqd/009:44:590
10050690,0irq/346-4848400851-21rngd12:20:090
10050690,0irq/346-484840032526-1kworker/0:4H09:24:120
10050670,0irq/346-484840020810-1kworker/0:1H07:35:030
81640,0rcu_preempt17927-21ssh09:39:590
81640,0rcu_preempt17927-21ssh09:39:590
81620,0rcu_preempt3-21ksoftirqd/012:30:040
81620,0rcu_preempt3-21ksoftirqd/008:00:020
81620,0rcu_preempt1272-21users09:55:100
10050620,0irq/346-48484008954-1kworker/0:0H12:19:050
81600,0rcu_preempt3-21ksoftirqd/011:04:590
9950580,0irq/345-48484001965-1kworker/1:1H12:08:191
81580,0rcu_preempt3-21ksoftirqd/010:29:520
81580,0rcu_preempt3-21ksoftirqd/009:18:050
81570,0rcu_preempt24425-21apt-get11:24:530
10050570,0irq/346-484840054-21kswapd010:36:491
10050570,0irq/346-484840054-21kswapd010:36:491
81560,0rcu_preempt3-21ksoftirqd/011:01:560
81560,0rcu_preempt3-21ksoftirqd/010:40:070
81560,0rcu_preempt3-21ksoftirqd/010:35:070
81560,0rcu_preempt3-21ksoftirqd/010:35:070
81560,0rcu_preempt3-21ksoftirqd/009:04:550
81550,0rcu_preempt3-21ksoftirqd/011:40:060
81550,0rcu_preempt3-21ksoftirqd/011:15:090
81550,0rcu_preempt3-21ksoftirqd/008:34:580
81550,0rcu_preempt3-21ksoftirqd/007:54:590
81540,0rcu_preempt7934-21kworker/0:009:35:010
81540,0rcu_preempt3-21ksoftirqd/012:04:590
81540,0rcu_preempt3-21ksoftirqd/010:26:360
81540,0rcu_preempt3-21ksoftirqd/009:30:080
81540,0rcu_preempt3-21ksoftirqd/008:55:070
81540,0rcu_preempt3-21ksoftirqd/008:50:070
81540,0rcu_preempt3-21ksoftirqd/008:45:090
10050540,0irq/346-484840054-21kswapd011:19:451
81530,0rcu_preempt9041-21kworker/0:011:52:030
81530,0rcu_preempt3-21ksoftirqd/012:39:150
81530,0rcu_preempt3-21ksoftirqd/012:10:070
81530,0rcu_preempt3-21ksoftirqd/011:55:050
81530,0rcu_preempt3-21ksoftirqd/008:09:590
10050530,0irq/346-4848400851-21rngd10:23:210
10050530,0irq/346-484840054-21kswapd011:39:421
10050530,0irq/346-484840018693-21ssh10:45:311
81520,0rcu_preempt9041-21kworker/0:011:10:060
81520,0rcu_preempt3-21ksoftirqd/011:35:000
81520,0rcu_preempt3-21ksoftirqd/010:00:020
81520,0rcu_preempt3-21ksoftirqd/008:20:060
10050520,0irq/346-48484006177-1kworker/1:3H12:15:241
81510,0rcu_preempt3360-21kworker/0:209:24:440
81510,0rcu_preempt3-21ksoftirqd/010:57:230
81510,0rcu_preempt3-21ksoftirqd/010:45:070
81510,0rcu_preempt3-21ksoftirqd/009:12:410
81510,0rcu_preempt3-21ksoftirqd/008:39:590
81510,0rcu_preempt29183-21ping08:14:540
81510,0rcu_preempt20524-21kworker/0:112:04:420
81510,0rcu_preempt20003-21diskmemload10:59:511
81510,0rcu_preempt19-21ksoftirqd/108:25:001
10050510,0irq/346-484840054-21kswapd010:19:521
81500,0rcu_preempt3-21ksoftirqd/008:25:100
81500,0rcu_preempt3-21ksoftirqd/007:09:410
81490,0rcu_preempt7801-21kworker/0:107:39:520
81490,0rcu_preempt3-21ksoftirqd/010:49:590
81490,0rcu_preempt30698-21kworker/0:208:09:140
81490,0rcu_preempt19-21ksoftirqd/109:40:051
81490,0rcu_preempt19-21ksoftirqd/109:40:051
81490,0rcu_preempt19-21ksoftirqd/108:14:541
81480,0rcu_preempt3-21ksoftirqd/010:10:020
81480,0rcu_preempt19-21ksoftirqd/111:15:111
10050480,0irq/346-484840019173-1kworker/1:1H07:59:471
10050480,0irq/346-48484001339-21snmpd09:57:551
81470,0rcu_preempt19-21ksoftirqd/112:34:581
10050470,0irq/346-484840032216-1kworker/1:2H10:30:011
10050470,0irq/346-484840010308-21wget08:39:531
81460,0rcu_preempt3-21ksoftirqd/007:45:060
81460,0rcu_preempt3-21ksoftirqd/007:25:010
81460,0rcu_preempt3-21ksoftirqd/007:10:080
81460,0rcu_preempt19-21ksoftirqd/107:25:131
81450,0rcu_preempt7801-21kworker/0:107:50:040
81450,0rcu_preempt7801-21kworker/0:107:20:070
81450,0rcu_preempt7801-21kworker/0:107:15:070
81450,0rcu_preempt3360-21kworker/0:208:59:560
10050450,0irq/346-4848400851-21rngd12:29:531
10050450,0irq/346-484840019993-21cron09:09:411
10050450,0irq/346-484840016205-21ping07:37:051
10050450,0irq/346-48484000-21swapper/108:59:441
81440,0rcu_preempt20003-21diskmemload10:25:551
81440,0rcu_preempt19-21ksoftirqd/111:44:521
81440,0rcu_preempt19-21ksoftirqd/107:50:061
10050440,0irq/346-48484002727-21ssh09:24:521
10050440,0irq/346-48484002460-1kworker/1:3H09:59:421
10050440,0irq/346-48484000-21swapper/007:30:080
81430,0rcu_preempt19-21ksoftirqd/112:20:001
81430,0rcu_preempt19-21ksoftirqd/109:12:091
81430,0rcu_preempt19-21ksoftirqd/107:40:021
81430,0rcu_preempt19-21ksoftirqd/107:30:051
10050430,0irq/346-48484000-21swapper/111:39:501
81420,0rcu_preempt54-21kswapd010:08:361
81420,0rcu_preempt19-21ksoftirqd/111:10:061
81420,0rcu_preempt19-21ksoftirqd/107:44:591
81420,0rcu_preempt14480-1kworker/1:0H11:50:001
81420,0rcu_preempt1206-21rs:main1
81420,0rcu_preempt0-21swapper/110:55:011
10050420,0irq/346-484840031129-21ssh11:30:521
10050420,0irq/346-48484000-21swapper/112:26:061
9950410,0irq/345-484840010038-1kworker/1:3H09:35:211
81410,0rcu_preempt19-21ksoftirqd/111:25:101
81410,0rcu_preempt19-21ksoftirqd/110:13:501
81410,0rcu_preempt19-21ksoftirqd/109:30:091
81400,0rcu_preempt19-21ksoftirqd/111:59:551
81400,0rcu_preempt19-21ksoftirqd/110:39:531
81400,0rcu_preempt19-21ksoftirqd/109:45:411
81400,0rcu_preempt19-21ksoftirqd/109:19:421
10050400,0irq/346-484840027552-21munin-node1
10050400,0irq/346-48484000-21swapper/109:21:271
81390,0rcu_preempt19-21ksoftirqd/110:15:101
81390,0rcu_preempt19-21ksoftirqd/108:19:431
81390,0rcu_preempt19-21ksoftirqd/108:09:541
10050390,0irq/346-484840023051-21ssh11:55:151
81380,0rcu_preempt19-21ksoftirqd/112:09:421
81380,0rcu_preempt19-21ksoftirqd/110:49:571
81380,0rcu_preempt19-21ksoftirqd/107:54:561
127102380,0chrt9258-1kworker/1:1H07:07:511
10050380,0irq/346-48484005173-21irqstats11:05:011
81370,0rcu_preempt19-21ksoftirqd/108:59:171
81370,0rcu_preempt19-21ksoftirqd/108:39:411
81370,0rcu_preempt19-21ksoftirqd/108:04:541
81360,0rcu_preempt19-21ksoftirqd/108:45:051
81350,0rcu_preempt19-21ksoftirqd/108:50:021
81340,0rcu_preempt19-21ksoftirqd/107:10:051
81320,0rcu_preempt19-21ksoftirqd/108:30:061
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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