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2026-02-01 - 08:53
[ 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 01, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811070,0rcu_preempt19-21ksoftirqd/121:39:531
811060,0rcu_preempt19-21ksoftirqd/122:29:521
81940,0rcu_preempt19-21ksoftirqd/119:39:411
81750,0rcu_preempt8300-1kworker/1:1H23:08:081
81730,0rcu_preempt3-21ksoftirqd/023:05:030
81720,0rcu_preempt19-21ksoftirqd/119:19:401
81610,0rcu_preempt19-21ksoftirqd/120:27:521
81610,0rcu_preempt19-21ksoftirqd/120:19:401
10050570,0irq/346-4848400968-1kworker/0:3H23:34:500
10050570,0irq/346-4848400968-1kworker/0:3H23:34:500
1297499562,0cyclictest54-21kswapd020:00:040
10050540,0irq/346-484840054-21kswapd023:51:240
10050540,0irq/346-484840054-21kswapd021:48:570
10050540,0irq/346-484840032406-1kworker/0:1H21:39:430
10050540,0irq/346-484840014752-21ssh22:08:500
13250530,0irq/301-48020000-21swapper/023:44:590
10050530,0irq/346-484840016929-1kworker/0:3H21:10:470
9950520,0irq/345-48484001339-21snmpd21:30:320
81520,0rcu_preempt3-21ksoftirqd/022:53:110
81520,0rcu_preempt3-21ksoftirqd/019:05:010
81520,0rcu_preempt19-21ksoftirqd/100:09:561
10050520,0irq/346-48484007773-1kworker/0:2H00:14:560
10050520,0irq/346-484840054-21kswapd000:07:220
10050520,0irq/346-484840030139-21ls21:19:400
10050520,0irq/346-484840030139-21ls21:19:400
10050520,0irq/346-484840025483-21sendmail-msp22:19:520
10050510,0irq/346-48484008778-1kworker/0:2H23:39:520
10050510,0irq/346-484840054-21kswapd023:19:430
10050510,0irq/346-484840054-21kswapd022:39:510
10050510,0irq/346-484840054-21kswapd000:34:430
81500,0rcu_preempt19-21ksoftirqd/119:19:411
10050500,0irq/346-484840054-21kswapd023:54:580
10050500,0irq/346-484840054-21kswapd022:35:340
10050500,0irq/346-484840054-21kswapd021:29:130
10050500,0irq/346-484840054-21kswapd000:32:540
10050500,0irq/346-484840014540-21ssh21:35:280
81490,0rcu_preempt3-21ksoftirqd/020:14:090
10050490,0irq/346-484840054-21kswapd022:28:100
10050490,0irq/346-484840054-21kswapd021:50:540
10050490,0irq/346-484840054-21kswapd000:11:210
10050490,0irq/346-48484003392-21ssh21:57:060
10050490,0irq/346-484840015098-1kworker/0:2H22:00:010
10050490,0irq/346-48484000-21swapper/022:18:580
81480,0rcu_preempt16324-21users20:55:060
10050480,0irq/346-48484007303-21munin-node0
10050480,0irq/346-484840032537-21ssh21:21:180
10050480,0irq/346-484840030675-1kworker/0:0H22:59:520
10050480,0irq/346-484840012860-1kworker/0:3H00:19:440
10050480,0irq/346-48484000-21swapper/022:46:330
10050470,0irq/346-48484009930-1kworker/0:2H20:39:450
10050470,0irq/346-484840054-21kswapd022:57:320
10050470,0irq/346-484840031061-1kworker/0:1H00:02:090
10050470,0irq/346-484840019291-1kworker/0:2H19:39:500
10050470,0irq/346-48484000-21swapper/022:11:000
1297499461,0cyclictest29215-21ping20:24:390
1297499461,0cyclictest29215-21ping20:24:390
10050460,0irq/346-48484003778-21ssh22:29:580
10050460,0irq/346-48484003-21ksoftirqd/020:04:560
10050460,0irq/346-484840026111-21munin-node0
81450,0rcu_preempt3-21ksoftirqd/023:14:480
81450,0rcu_preempt3-21ksoftirqd/023:10:050
81450,0rcu_preempt3-21ksoftirqd/020:49:390
81450,0rcu_preempt26865-21memory19:50:010
81450,0rcu_preempt15343-21meminfo19:15:020
1599450,0migration/018008-21latency_hist19:24:400
10050450,0irq/346-484840029423-21/usr/sbin/munin19:59:400
10050450,0irq/346-484840016268-21ping19:19:520
10050450,0irq/346-48484000-21swapper/021:04:570
81440,0rcu_preempt3-21ksoftirqd/020:15:510
81440,0rcu_preempt3-21ksoftirqd/019:31:360
81440,0rcu_preempt3-21ksoftirqd/000:25:010
81440,0rcu_preempt19-21ksoftirqd/121:30:101
1699440,0migration/115597-21taskset23:14:251
9950430,0irq/345-484840016929-1kworker/0:3H21:04:390
13250430,0irq/301-480200016268-21ping19:34:530
81420,0rcu_preempt19-21ksoftirqd/123:14:581
10050420,0irq/346-48484002598-21runrttasks23:33:340
81410,0rcu_preempt3-21ksoftirqd/020:34:480
10050410,0irq/346-48484001339-21snmpd19:12:020
9950400,0irq/345-484840024135-1kworker/0:4H19:45:540
9950400,0irq/345-484840024135-1kworker/0:4H19:45:540
10050400,0irq/346-4848400414-1kworker/1:3H22:43:501
9950390,0irq/345-484840020836-1kworker/1:1H19:39:391
81390,0rcu_preempt3-21ksoftirqd/020:46:400
81390,0rcu_preempt19-21ksoftirqd/120:13:071
81390,0rcu_preempt19-21ksoftirqd/120:08:351
81390,0rcu_preempt19-21ksoftirqd/100:32:391
81390,0rcu_preempt19-21ksoftirqd/100:21:501
309582390,0sleep130414-1kworker/1:0H22:24:561
227302390,0chrt8300-1kworker/1:1H23:20:401
1699390,0migration/131999-21runrttasks21:20:371
81380,0rcu_preempt3-21ksoftirqd/020:25:140
81380,0rcu_preempt19-21ksoftirqd/121:16:101
81380,0rcu_preempt19-21ksoftirqd/121:16:101
81380,0rcu_preempt19-21ksoftirqd/119:10:041
81380,0rcu_preempt15584-1kworker/1:2H23:01:121
81380,0rcu_preempt0-21swapper/100:02:351
1699380,0migration/120443-21runrttasks23:50:421
10050380,0irq/346-48484008757-21apt-get23:39:521
9950370,0irq/345-48484002739-1kworker/1:1H21:59:471
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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