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2026-02-08 - 10:32
[ 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 Sun Feb 08, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811180,0rcu_preempt13107-1kworker/0:0H21:36:580
81940,0rcu_preempt9950irq/345-484840023:22:061
81870,0rcu_preempt3-21ksoftirqd/022:19:380
81760,0rcu_preempt0-21swapper/100:33:071
81750,0rcu_preempt19-21ksoftirqd/123:15:171
81750,0rcu_preempt19-21ksoftirqd/120:04:461
81730,0rcu_preempt19-21ksoftirqd/100:04:541
81720,0rcu_preempt19-21ksoftirqd/122:33:351
10050720,0irq/346-484840028408-1kworker/0:0H22:28:240
10050710,0irq/346-4848400491-1kworker/0:2H00:07:450
81690,0rcu_preempt19820-1kworker/0:0H19:39:410
81690,0rcu_preempt19-21ksoftirqd/120:14:331
10050690,0irq/346-484840020693-1kworker/0:4H23:22:210
10050690,0irq/346-484840015444-1kworker/0:3H00:30:030
10050690,0irq/346-484840010771-1kworker/0:1H23:12:200
81680,0rcu_preempt0-21swapper/122:35:551
81650,0rcu_preempt19-21ksoftirqd/120:28:431
81630,0rcu_preempt3-21ksoftirqd/023:59:080
81630,0rcu_preempt3-21ksoftirqd/021:45:110
81630,0rcu_preempt19-21ksoftirqd/122:25:161
81620,0rcu_preempt19-21ksoftirqd/121:20:241
81610,0rcu_preempt3-21ksoftirqd/023:50:090
81610,0rcu_preempt3-21ksoftirqd/023:28:130
81610,0rcu_preempt3-21ksoftirqd/021:11:130
81610,0rcu_preempt3-21ksoftirqd/000:16:190
81610,0rcu_preempt19-21ksoftirqd/123:41:151
81610,0rcu_preempt19-21ksoftirqd/123:37:181
81610,0rcu_preempt19-21ksoftirqd/121:42:161
81610,0rcu_preempt19-21ksoftirqd/120:44:441
81610,0rcu_preempt19-21ksoftirqd/119:59:581
10050610,0irq/346-484840015444-1kworker/0:3H00:24:550
81600,0rcu_preempt3-21ksoftirqd/000:38:440
81600,0rcu_preempt3-21ksoftirqd/000:22:450
81600,0rcu_preempt19-21ksoftirqd/123:51:191
81590,0rcu_preempt3-21ksoftirqd/022:00:360
81590,0rcu_preempt19-21ksoftirqd/121:04:441
10050590,0irq/346-484840015443-1kworker/1:1H00:21:571
81580,0rcu_preempt3-21ksoftirqd/021:39:420
81580,0rcu_preempt19-21ksoftirqd/120:29:521
81580,0rcu_preempt19-21ksoftirqd/120:20:261
81580,0rcu_preempt19-21ksoftirqd/120:14:361
10050580,0irq/346-48484006114-21ssh22:34:450
10050580,0irq/346-484840023263-1kworker/0:1H22:53:520
81570,0rcu_preempt3-21ksoftirqd/021:29:460
81570,0rcu_preempt19-21ksoftirqd/122:00:021
81570,0rcu_preempt19-21ksoftirqd/100:28:441
81560,0rcu_preempt54-21kswapd000:13:040
81550,0rcu_preempt26089-21ssh23:59:521
81550,0rcu_preempt19-21ksoftirqd/120:35:011
81540,0rcu_preempt28994-21kworker/0:220:09:330
81540,0rcu_preempt19-21ksoftirqd/123:30:001
81540,0rcu_preempt19-21ksoftirqd/121:56:451
81540,0rcu_preempt19-21ksoftirqd/120:49:491
81530,0rcu_preempt3-21ksoftirqd/019:05:310
81530,0rcu_preempt19-21ksoftirqd/123:09:521
81530,0rcu_preempt19-21ksoftirqd/122:09:581
81520,0rcu_preempt4683-21kworker/u4:023:59:380
81520,0rcu_preempt19-21ksoftirqd/123:01:181
81520,0rcu_preempt19-21ksoftirqd/122:54:441
81520,0rcu_preempt19-21ksoftirqd/121:38:221
81520,0rcu_preempt19-21ksoftirqd/121:24:441
81520,0rcu_preempt19-21ksoftirqd/120:54:531
81520,0rcu_preempt19-21ksoftirqd/119:59:171
81520,0rcu_preempt19-21ksoftirqd/100:14:521
10050520,0irq/346-484840054-21kswapd022:09:510
81510,0rcu_preempt3-21ksoftirqd/020:29:450
81510,0rcu_preempt3-21ksoftirqd/020:24:500
81510,0rcu_preempt19-21ksoftirqd/123:44:541
81510,0rcu_preempt19-21ksoftirqd/123:04:531
81510,0rcu_preempt19-21ksoftirqd/122:39:571
81510,0rcu_preempt19-21ksoftirqd/122:14:551
81510,0rcu_preempt19-21ksoftirqd/121:09:551
81510,0rcu_preempt19-21ksoftirqd/121:00:001
81510,0rcu_preempt10249-21cyclictest22:44:581
10050510,0irq/346-484840028500-21munin-node0
10050510,0irq/346-484840026259-21taskset21:18:020
9950500,0irq/345-484840016154-21apt-get22:44:440
81500,0rcu_preempt3-21ksoftirqd/023:44:430
81500,0rcu_preempt3-21ksoftirqd/021:49:580
81500,0rcu_preempt19-21ksoftirqd/121:44:591
81500,0rcu_preempt19-21ksoftirqd/121:29:521
81500,0rcu_preempt19-21ksoftirqd/119:49:571
81500,0rcu_preempt19-21ksoftirqd/119:49:571
81500,0rcu_preempt19-21ksoftirqd/119:14:541
10250995016,0cyclictest26533-21ping20:01:380
10050500,0irq/346-484840054-21kswapd022:41:050
10050500,0irq/346-484840054-21kswapd021:14:531
10050500,0irq/346-484840032502-1kworker/0:0H21:56:450
10050500,0irq/346-48484000-21swapper/023:34:460
81490,0rcu_preempt4683-21kworker/u4:022:14:500
81490,0rcu_preempt3-21ksoftirqd/022:30:020
81490,0rcu_preempt19-21ksoftirqd/123:27:281
81490,0rcu_preempt19-21ksoftirqd/122:50:441
81490,0rcu_preempt19-21ksoftirqd/119:39:451
81490,0rcu_preempt19-21ksoftirqd/119:35:041
10050490,0irq/346-484840021556-21meminfo23:54:541
81480,0rcu_preempt3-21ksoftirqd/020:19:410
81480,0rcu_preempt3-21ksoftirqd/020:16:040
81480,0rcu_preempt3-21ksoftirqd/020:04:570
81480,0rcu_preempt19-21ksoftirqd/122:21:041
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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