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2026-01-16 - 14:15
[ 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 Fri Jan 16, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81950,0rcu_preempt19-21ksoftirqd/122:25:201
81720,0rcu_preempt3-21ksoftirqd/021:25:230
209662700,0chrt10050irq/346-484840019:59:110
81660,0rcu_preempt8307-1kworker/0:2H22:15:220
81650,0rcu_preempt3-21ksoftirqd/022:44:550
81630,0rcu_preempt3-21ksoftirqd/000:16:120
81610,0rcu_preempt3-21ksoftirqd/023:45:120
81610,0rcu_preempt3-21ksoftirqd/023:45:120
81600,0rcu_preempt3-21ksoftirqd/023:14:550
81600,0rcu_preempt3-21ksoftirqd/021:39:340
109942600,0chrt10050irq/346-484840019:27:510
81590,0rcu_preempt3-21ksoftirqd/020:29:550
81560,0rcu_preempt19-21ksoftirqd/122:45:081
13250560,0irq/301-480200025608-21munin-node0
1599550,0migration/0794-21runrttasks23:44:000
81540,0rcu_preempt3-21ksoftirqd/023:24:540
81530,0rcu_preempt3-21ksoftirqd/022:00:060
81530,0rcu_preempt3-21ksoftirqd/000:10:060
81520,0rcu_preempt3-21ksoftirqd/023:30:240
81520,0rcu_preempt3-21ksoftirqd/021:45:160
81520,0rcu_preempt3-21ksoftirqd/019:09:540
81520,0rcu_preempt19-21ksoftirqd/121:55:141
10050520,0irq/346-48484009132-1kworker/0:2H00:00:120
10050520,0irq/346-484840054-21kswapd023:25:460
10050520,0irq/346-48484000-21swapper/021:43:570
81510,0rcu_preempt3-21ksoftirqd/021:54:540
81510,0rcu_preempt3-21ksoftirqd/021:20:110
81510,0rcu_preempt19-21ksoftirqd/122:50:201
10050510,0irq/346-484840054-21kswapd023:35:290
174812500,0chrt10050irq/346-484840019:47:010
10050500,0irq/346-484840054-21kswapd023:09:570
10050500,0irq/346-48484001470-21runrttasks23:54:130
10050500,0irq/346-484840014127-1kworker/0:3H19:40:050
10050500,0irq/346-484840014127-1kworker/0:3H19:40:050
10050500,0irq/346-48484000-21swapper/000:22:360
9950490,0irq/345-484840029276-21cron20:24:530
81490,0rcu_preempt19-21ksoftirqd/119:19:541
81490,0rcu_preempt18523-21ps22:55:190
10050490,0irq/346-484840029812-21ssh23:06:550
10050490,0irq/346-484840010244-1kworker/0:0H23:00:020
9950480,0irq/345-484840010244-1kworker/0:0H22:50:120
81480,0rcu_preempt19-21ksoftirqd/100:00:211
10050480,0irq/346-48484008083-1kworker/0:0H21:00:140
81470,0rcu_preempt3-21ksoftirqd/020:14:220
81470,0rcu_preempt3-21ksoftirqd/020:01:570
10050470,0irq/346-48484007902-21ping19:35:130
10050470,0irq/346-48484005998-21ssh22:10:030
10050470,0irq/346-48484003-21ksoftirqd/019:19:540
10050470,0irq/346-484840029437-21runrttasks20:25:040
10050470,0irq/346-484840028327-21ls21:59:530
10050470,0irq/346-484840013213-1kworker/0:1H22:25:170
81460,0rcu_preempt54-21kswapd000:07:140
81460,0rcu_preempt3-21ksoftirqd/023:55:220
81460,0rcu_preempt19-21ksoftirqd/119:41:231
81460,0rcu_preempt19-21ksoftirqd/119:41:231
10050460,0irq/346-48484008316-21fschecks_time19:20:150
10050460,0irq/346-484840023886-1kworker/0:1H00:24:570
10050460,0irq/346-484840014990-21ssh00:30:430
81450,0rcu_preempt7095-21df_abs20:55:080
81450,0rcu_preempt442-21df_abs20:35:080
81450,0rcu_preempt3-21ksoftirqd/021:15:140
81450,0rcu_preempt3-21ksoftirqd/020:45:060
461399453,0cyclictest26134-21apt-get20:15:040
10050450,0irq/346-484840054-21kswapd022:19:570
10050450,0irq/346-48484003765-21ssh22:07:160
10050450,0irq/346-484840032412-21munin-node0
10050450,0irq/346-484840032412-21munin-node0
10050450,0irq/346-484840018415-21ssh00:35:050
10050450,0irq/346-484840012757-21taskset19:34:160
10050450,0irq/346-48484000-21swapper/022:48:020
81440,0rcu_preempt4956-21df_inode19:10:090
81440,0rcu_preempt3-21ksoftirqd/020:07:510
10050440,0irq/346-48484001484-1kworker/0:3H20:39:590
10050440,0irq/346-484840013910-21ssh21:11:180
81430,0rcu_preempt54-21kswapd021:47:501
81430,0rcu_preempt28921-1kworker/1:2H21:27:241
81430,0rcu_preempt19-21ksoftirqd/100:25:121
81420,0rcu_preempt851-21rngd23:05:491
81420,0rcu_preempt10885-21ntp_states21:05:150
10050420,0irq/346-48484001699migration/122:40:021
81410,0rcu_preempt54-21kswapd022:07:381
81410,0rcu_preempt19-21ksoftirqd/122:00:181
81410,0rcu_preempt19-21ksoftirqd/100:15:211
10050410,0irq/346-484840030834-21munin-node0
81400,0rcu_preempt19-21ksoftirqd/123:29:391
81400,0rcu_preempt19-21ksoftirqd/122:20:111
10050400,0irq/346-484840019375-21taskset19:54:450
10050400,0irq/346-484840019076-1kworker/1:0H21:20:061
81390,0rcu_preempt3-21ksoftirqd/020:50:080
81390,0rcu_preempt19-21ksoftirqd/119:06:521
81380,0rcu_preempt19-21ksoftirqd/123:45:221
81380,0rcu_preempt19-21ksoftirqd/123:45:221
1699380,0migration/13947-21munin-node1
10050380,0irq/346-48484004818-21ssh23:15:051
9950370,0irq/345-484840013013-1kworker/1:2H19:35:281
81370,0rcu_preempt14672-1kworker/1:1H23:30:351
81360,0rcu_preempt19-21ksoftirqd/123:50:281
81360,0rcu_preempt19-21ksoftirqd/123:39:321
81360,0rcu_preempt19-21ksoftirqd/100:36:511
143822360,0sleep114155-1kworker/1:1H21:11:561
9950350,0irq/345-484840094252chrt22:13:161
81350,0rcu_preempt19-21ksoftirqd/123:10:041
81350,0rcu_preempt19-21ksoftirqd/121:31:091
81350,0rcu_preempt19-21ksoftirqd/121:31:091
81350,0rcu_preempt19-21ksoftirqd/120:35:221
81350,0rcu_preempt19-21ksoftirqd/120:32:071
81350,0rcu_preempt11710-21diskmemload00:32:101
279992350,0sleep123885-1kworker/1:0H00:11:021
1699350,0migration/110017-21fschecks_count23:20:111
10050350,0irq/346-484840030998-1kworker/1:2H23:41:141
10050350,0irq/346-484840027414-21taskset22:31:081
10050350,0irq/346-484840022566-21apt-get23:00:041
9950340,0irq/345-48484004014-21ssh21:34:551
9950340,0irq/345-484840024491-21munin-node1
9950340,0irq/345-484840022529-21unixbench_multi00:05:241
98182340,0sleep19747-1kworker/1:3H21:02:181
81340,0rcu_preempt8143-21runrttasks20:57:131
81340,0rcu_preempt19-21ksoftirqd/122:18:011
81340,0rcu_preempt19-21ksoftirqd/121:52:001
81340,0rcu_preempt19-21ksoftirqd/121:40:211
81340,0rcu_preempt19-21ksoftirqd/121:17:411
207242340,0sleep119064-1kworker/1:3H19:56:371
1699340,0migration/127892-21aten_rapower_po20:20:071
10050340,0irq/346-484840018711-21ssh22:55:211
9950330,0irq/345-484840023055-1kworker/1:1H22:36:001
9950330,0irq/345-48484001470-21runrttasks20:25:501
81330,0rcu_preempt19-21ksoftirqd/123:55:091
81330,0rcu_preempt19-21ksoftirqd/120:00:111
48442330,0sleep14796-1kworker/1:2H20:47:041
1699330,0migration/19644-21latency_hist19:24:551
81320,0rcu_preempt3278-21chrt20:42:521
81320,0rcu_preempt19-21ksoftirqd/121:05:331
81320,0rcu_preempt19-21ksoftirqd/120:50:331
81320,0rcu_preempt19-21ksoftirqd/119:10:181
81320,0rcu_preempt16999-21ps19:45:271
10050320,0irq/346-48484004245-1kworker/1:0H19:19:561
81310,0rcu_preempt19-21ksoftirqd/119:53:001
81310,0rcu_preempt19-21ksoftirqd/119:30:021
10050310,0irq/346-484840025653-1kworker/1:2H20:19:551
10050290,0irq/346-484840023163-21if_can020:05:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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