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2026-03-09 - 09:22
[ 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 Mon Mar 09, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81920,0rcu_preempt3-21ksoftirqd/021:59:230
81870,0rcu_preempt3-21ksoftirqd/022:11:550
81870,0rcu_preempt31682-21kworker/0:222:37:470
81870,0rcu_preempt17301-21kworker/0:123:44:020
81860,0rcu_preempt3-21ksoftirqd/000:14:170
81850,0rcu_preempt3-21ksoftirqd/022:44:480
81850,0rcu_preempt17301-21kworker/0:123:44:540
81850,0rcu_preempt17301-21kworker/0:123:44:540
81830,0rcu_preempt3-21ksoftirqd/019:52:550
81820,0rcu_preempt3-21ksoftirqd/023:32:570
81820,0rcu_preempt3-21ksoftirqd/022:04:220
81810,0rcu_preempt3-21ksoftirqd/022:21:170
81810,0rcu_preempt3-21ksoftirqd/021:45:470
81810,0rcu_preempt31682-21kworker/0:222:26:020
81810,0rcu_preempt22941-21kworker/0:122:40:560
81810,0rcu_preempt20558-21kworker/0:021:32:520
81800,0rcu_preempt3-21ksoftirqd/020:34:240
81790,0rcu_preempt3-21ksoftirqd/021:14:240
81790,0rcu_preempt3-21ksoftirqd/020:19:060
81790,0rcu_preempt3-21ksoftirqd/000:37:340
81790,0rcu_preempt3-21ksoftirqd/000:37:340
81790,0rcu_preempt3-21ksoftirqd/000:33:290
81770,0rcu_preempt3-21ksoftirqd/000:22:090
81750,0rcu_preempt54-21kswapd020:04:270
81750,0rcu_preempt54-21kswapd020:04:270
81750,0rcu_preempt3-21ksoftirqd/023:49:210
81740,0rcu_preempt19-21ksoftirqd/123:09:331
81730,0rcu_preempt3-21ksoftirqd/023:09:270
81730,0rcu_preempt3-21ksoftirqd/021:39:250
81730,0rcu_preempt3-21ksoftirqd/021:26:310
81720,0rcu_preempt3-21ksoftirqd/023:20:220
81710,0rcu_preempt28579-1kworker/0:0H19:19:380
81700,0rcu_preempt3-21ksoftirqd/023:34:190
81700,0rcu_preempt3-21ksoftirqd/023:02:340
81690,0rcu_preempt3-21ksoftirqd/021:09:340
81670,0rcu_preempt30390-21php-cgi00:24:250
4350670,0irq/32-4330000011426-21dropbear22:59:181
81660,0rcu_preempt3-21ksoftirqd/021:54:250
81660,0rcu_preempt3-21ksoftirqd/000:08:590
81640,0rcu_preempt3-21ksoftirqd/023:57:050
81640,0rcu_preempt3-21ksoftirqd/023:57:050
81610,0rcu_preempt3-21ksoftirqd/023:08:210
81590,0rcu_preempt19-21ksoftirqd/123:48:111
81590,0rcu_preempt19-21ksoftirqd/123:48:111
81570,0rcu_preempt3-21ksoftirqd/021:35:120
10050560,0irq/346-48484000-21swapper/000:11:210
10050550,0irq/346-484840054-21kswapd022:48:311
9950540,0irq/345-48484000-21swapper/022:51:330
81540,0rcu_preempt19-21ksoftirqd/121:58:181
81540,0rcu_preempt19-21ksoftirqd/119:36:101
81540,0rcu_preempt19-21ksoftirqd/119:31:361
9950530,0irq/345-484840017851-1kworker/1:1H21:29:591
81530,0rcu_preempt19-21ksoftirqd/123:44:051
81520,0rcu_preempt0-21swapper/121:36:101
10050520,0irq/346-484840054-21kswapd022:55:481
9950510,0irq/345-48484003462-1kworker/1:0H22:52:321
9950500,0irq/345-484840011240-1kworker/1:2H22:26:231
81500,0rcu_preempt851-21rngd19:29:190
10050500,0irq/346-48484005682-21munin-node1
10050500,0irq/346-484840054-21kswapd022:02:051
10050500,0irq/346-484840031901-21sshd19:26:260
81490,0rcu_preempt19-21ksoftirqd/123:53:491
10050490,0irq/346-484840054-21kswapd023:26:040
10050490,0irq/346-484840054-21kswapd023:26:040
10050490,0irq/346-484840024203-21munin-node0
9950480,0irq/345-484840022419-1kworker/1:1H00:16:041
81480,0rcu_preempt4912-21kworker/0:219:12:160
81480,0rcu_preempt412-21apt-get23:54:171
81480,0rcu_preempt412-21apt-get23:54:171
81480,0rcu_preempt19-21ksoftirqd/122:14:231
81480,0rcu_preempt14534-21ssh00:08:321
81480,0rcu_preempt13279-21php-cgi20:09:230
10050480,0irq/346-48484000-21swapper/023:18:490
10050480,0irq/346-48484000-21swapper/023:18:490
2558699474,0cyclictest9390-21ping19:59:160
9950460,0irq/345-484840016145-1kworker/1:1H22:32:491
9950460,0irq/345-484840016145-1kworker/1:1H22:32:491
9950460,0irq/345-48484000-21swapper/022:18:500
9950460,0irq/345-48484000-21swapper/021:53:000
81460,0rcu_preempt54-21kswapd023:04:331
81460,0rcu_preempt3-21ksoftirqd/020:39:310
81460,0rcu_preempt19-21ksoftirqd/121:16:051
2558699465,0cyclictest41ktimersoftd/000:00:260
10050460,0irq/346-48484007756-21lighttpd00:34:231
10050460,0irq/346-48484007756-21lighttpd00:34:231
10050460,0irq/346-484840054-21kswapd022:58:000
10050460,0irq/346-484840054-21kswapd019:58:111
81450,0rcu_preempt7262-21kworker/1:122:34:301
81450,0rcu_preempt3-21ksoftirqd/020:49:230
81450,0rcu_preempt19795-21diskstats20:29:210
81450,0rcu_preempt19-21ksoftirqd/123:34:211
81450,0rcu_preempt19-21ksoftirqd/120:04:051
81450,0rcu_preempt19-21ksoftirqd/100:09:441
81450,0rcu_preempt10481-21dropbear21:19:180
10050450,0irq/346-48484009605-21ssh23:29:381
10050450,0irq/346-484840054-21kswapd000:30:561
10050450,0irq/346-484840025585-21cyclictest22:41:561
10050450,0irq/346-48484000-21swapper/123:24:101
10050450,0irq/346-48484000-21swapper/123:24:101
10050450,0irq/346-48484000-21swapper/122:23:581
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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