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2026-01-20 - 06:50
[ 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 100 highest latencies:
System rackaslot5s.osadl.org (updated Tue Jan 20, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811020,0rcu_preempt3-21ksoftirqd/022:07:590
811020,0rcu_preempt3-21ksoftirqd/021:14:580
811020,0rcu_preempt3-21ksoftirqd/019:45:080
81970,0rcu_preempt3-21ksoftirqd/022:36:260
81970,0rcu_preempt3-21ksoftirqd/022:04:290
81970,0rcu_preempt3-21ksoftirqd/021:39:120
81940,0rcu_preempt54-21kswapd022:54:170
81940,0rcu_preempt3-21ksoftirqd/023:00:460
81940,0rcu_preempt3-21ksoftirqd/000:05:070
81860,0rcu_preempt3-21ksoftirqd/019:20:070
81760,0rcu_preempt10348-21kworker/0:221:40:160
81750,0rcu_preempt3-21ksoftirqd/000:35:150
81730,0rcu_preempt3-21ksoftirqd/023:10:160
81730,0rcu_preempt3-21ksoftirqd/000:03:530
81730,0rcu_preempt31339-21kworker/0:223:40:100
81730,0rcu_preempt17893-21awk19:25:050
81730,0rcu_preempt17893-21awk19:25:050
81720,0rcu_preempt3-21ksoftirqd/019:35:220
81710,0rcu_preempt3-21ksoftirqd/023:15:140
81710,0rcu_preempt3-21ksoftirqd/021:50:030
81710,0rcu_preempt28938-21kworker/0:221:57:180
81710,0rcu_preempt1470-21runrttasks19:32:340
10050710,0irq/346-48484004079-1kworker/0:0H21:26:150
81700,0rcu_preempt3-21ksoftirqd/023:29:580
81700,0rcu_preempt3-21ksoftirqd/000:26:170
81700,0rcu_preempt0-21swapper/021:14:150
10050700,0irq/346-484840013047-1kworker/0:3H22:42:000
81690,0rcu_preempt4892-21kworker/0:120:45:080
81690,0rcu_preempt3-21ksoftirqd/022:15:130
81690,0rcu_preempt3-21ksoftirqd/020:22:020
81690,0rcu_preempt3-21ksoftirqd/019:50:130
81690,0rcu_preempt1470-21runrttasks00:17:300
81680,0rcu_preempt8207-21kworker/0:223:25:180
81680,0rcu_preempt6830-21kworker/0:122:23:360
81680,0rcu_preempt6830-21kworker/0:122:23:360
81680,0rcu_preempt6830-21kworker/0:122:12:470
81680,0rcu_preempt3-21ksoftirqd/021:00:140
81680,0rcu_preempt16584-21kworker/0:221:21:540
81680,0rcu_preempt10941-21ssh23:45:140
81670,0rcu_preempt3-21ksoftirqd/021:47:340
81670,0rcu_preempt3216-21kworker/0:220:35:110
81670,0rcu_preempt3216-21kworker/0:220:35:110
81670,0rcu_preempt28840-21ping20:15:060
81670,0rcu_preempt0-21swapper/022:59:200
81670,0rcu_preempt0-21swapper/000:33:120
10050670,0irq/346-484840017837-21ssh22:13:341
81660,0rcu_preempt3-21ksoftirqd/023:50:010
81660,0rcu_preempt3-21ksoftirqd/023:20:150
81660,0rcu_preempt3-21ksoftirqd/022:31:300
81660,0rcu_preempt3-21ksoftirqd/020:25:170
81660,0rcu_preempt3-21ksoftirqd/020:05:040
81660,0rcu_preempt3-21ksoftirqd/020:05:040
81660,0rcu_preempt3-21ksoftirqd/020:00:150
81650,0rcu_preempt3332-21apt-get23:05:020
81650,0rcu_preempt3-21ksoftirqd/020:30:020
81650,0rcu_preempt3-21ksoftirqd/019:10:030
81650,0rcu_preempt3-21ksoftirqd/000:20:570
81650,0rcu_preempt3-21ksoftirqd/000:12:120
81650,0rcu_preempt0-21swapper/023:55:460
10050650,0irq/346-484840018564-21ssh00:25:481
81640,0rcu_preempt3-21ksoftirqd/023:35:050
81640,0rcu_preempt3-21ksoftirqd/020:10:200
81640,0rcu_preempt3-21ksoftirqd/019:40:110
81640,0rcu_preempt3-21ksoftirqd/019:15:170
81640,0rcu_preempt3-21ksoftirqd/019:15:170
10050640,0irq/346-484840019588-1kworker/1:1H21:44:501
81630,0rcu_preempt3-21ksoftirqd/022:49:310
81630,0rcu_preempt3-21ksoftirqd/022:49:310
81630,0rcu_preempt3-21ksoftirqd/021:31:330
81630,0rcu_preempt3-21ksoftirqd/021:31:330
81630,0rcu_preempt0-21swapper/022:25:500
81620,0rcu_preempt3-21ksoftirqd/020:55:000
81610,0rcu_preempt3-21ksoftirqd/020:40:090
81610,0rcu_preempt3-21ksoftirqd/019:55:120
81610,0rcu_preempt19808-21munin-run21:09:500
10050610,0irq/346-484840023921-1kworker/1:1H00:35:411
81600,0rcu_preempt3-21ksoftirqd/020:50:100
10050600,0irq/346-48484008380-21hostname23:10:031
10050600,0irq/346-4848400323462sleep123:00:421
9950590,0irq/345-4848400181ktimersoftd/121:48:231
10050590,0irq/346-484840054-21kswapd023:53:111
9950580,0irq/345-4848400181ktimersoftd/122:05:121
10050580,0irq/346-484840054-21kswapd019:39:521
10050570,0irq/346-48484006979-21ssh21:29:471
10050570,0irq/346-484840054-21kswapd021:22:101
9950550,0irq/345-4848400181ktimersoftd/122:24:401
9950550,0irq/345-4848400181ktimersoftd/122:24:401
10050550,0irq/346-484840054-21kswapd021:18:201
10050550,0irq/346-484840021619-1kworker/1:2H22:28:561
9950540,0irq/345-4848400181ktimersoftd/122:59:181
9950530,0irq/345-4848400171rcuc/121:10:071
81530,0rcu_preempt3-21ksoftirqd/019:05:050
10050530,0irq/346-484840054-21kswapd023:40:421
10050530,0irq/346-484840054-21kswapd023:22:511
10050530,0irq/346-484840054-21kswapd022:36:021
10050530,0irq/346-48484004256-1kworker/1:3H00:13:181
10050530,0irq/346-484840027390-1kworker/1:0H21:50:501
9950520,0irq/345-48484001270499cyclictest23:06:141
10050520,0irq/346-484840054-21kswapd022:42:091
10050520,0irq/346-484840054-21kswapd021:59:431
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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