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2026-02-01 - 15:04
[ 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 Sun Feb 01, 2026 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811250,0rcu_preempt19-21ksoftirqd/109:49:311
811250,0rcu_preempt15423-21ssh12:03:241
811210,0rcu_preempt22245-21kworker/1:110:22:151
811180,0rcu_preempt0-21swapper/110:30:061
811110,0rcu_preempt19-21ksoftirqd/109:54:341
811040,0rcu_preempt19-21ksoftirqd/110:36:181
811030,0rcu_preempt19-21ksoftirqd/112:35:011
811020,0rcu_preempt19-21ksoftirqd/107:38:401
811020,0rcu_preempt19-21ksoftirqd/107:30:111
811010,0rcu_preempt19-21ksoftirqd/107:22:051
811000,0rcu_preempt19-21ksoftirqd/109:34:571
811000,0rcu_preempt19-21ksoftirqd/109:34:571
81990,0rcu_preempt19-21ksoftirqd/112:29:591
81980,0rcu_preempt19-21ksoftirqd/110:45:061
81940,0rcu_preempt19-21ksoftirqd/108:03:331
81920,0rcu_preempt19-21ksoftirqd/111:02:191
81920,0rcu_preempt19-21ksoftirqd/110:29:081
81870,0rcu_preempt54-21kswapd010:42:401
81870,0rcu_preempt19-21ksoftirqd/109:09:491
81860,0rcu_preempt19-21ksoftirqd/108:19:531
81850,0rcu_preempt19-21ksoftirqd/111:34:521
81840,0rcu_preempt19-21ksoftirqd/110:10:021
81790,0rcu_preempt19-21ksoftirqd/108:10:021
81790,0rcu_preempt1470-21runrttasks12:21:561
81790,0rcu_preempt1470-21runrttasks12:21:561
81780,0rcu_preempt19-21ksoftirqd/109:55:061
81780,0rcu_preempt19-21ksoftirqd/107:42:491
81770,0rcu_preempt54-21kswapd009:42:561
81770,0rcu_preempt3-21ksoftirqd/010:39:570
81760,0rcu_preempt19-21ksoftirqd/109:27:011
81760,0rcu_preempt19-21ksoftirqd/109:14:511
81760,0rcu_preempt1057-1kworker/1:0H11:22:181
10050750,0irq/346-484840023984-1kworker/0:2H12:24:490
81730,0rcu_preempt19-21ksoftirqd/109:20:301
2624799731,0cyclictest10117-21ping07:59:520
81720,0rcu_preempt54-21kswapd011:41:111
10050710,0irq/346-484840011554-1kworker/0:1H12:11:000
81690,0rcu_preempt19-21ksoftirqd/110:55:211
81670,0rcu_preempt28472-1kworker/1:2H11:44:551
81670,0rcu_preempt19-21ksoftirqd/109:30:091
10050670,0irq/346-48484001058-1kworker/0:0H11:24:060
81660,0rcu_preempt22245-21kworker/1:110:05:191
81660,0rcu_preempt19-21ksoftirqd/110:02:281
81650,0rcu_preempt54-21kswapd012:07:490
81650,0rcu_preempt19-21ksoftirqd/112:15:371
10050640,0irq/346-48484008220-1kworker/0:0H09:19:490
10050640,0irq/346-484840018379-1kworker/0:0H09:50:100
81630,0rcu_preempt19-21ksoftirqd/110:50:571
81620,0rcu_preempt19-21ksoftirqd/112:11:281
81610,0rcu_preempt54-21kswapd010:19:390
81610,0rcu_preempt3-21ksoftirqd/010:34:040
81610,0rcu_preempt19-21ksoftirqd/111:14:541
81590,0rcu_preempt3-21ksoftirqd/010:02:410
81580,0rcu_preempt54-21kswapd010:37:180
81580,0rcu_preempt29827-21kworker/0:009:02:340
81570,0rcu_preempt19-21ksoftirqd/112:26:511
81560,0rcu_preempt19-21ksoftirqd/111:07:151
81550,0rcu_preempt19-21ksoftirqd/110:17:341
10050550,0irq/346-484840028473-1kworker/0:1H11:11:540
81540,0rcu_preempt19-21ksoftirqd/108:05:061
81540,0rcu_preempt19-21ksoftirqd/107:14:541
10050540,0irq/346-4848400851-21rngd11:18:500
10050540,0irq/346-484840054-21kswapd011:04:520
2624799536,0cyclictest0-21swapper/009:11:370
10050530,0irq/346-48484007486-21ssh11:55:051
10050530,0irq/346-484840054-21kswapd012:34:080
10050530,0irq/346-484840018277-1kworker/0:3H11:02:010
81520,0rcu_preempt3-21ksoftirqd/011:25:180
81520,0rcu_preempt14820-21munin-node1
10050520,0irq/346-4848400851-21rngd10:13:590
10050510,0irq/346-484840054-21kswapd011:54:380
10050510,0irq/346-484840054-21kswapd010:45:490
10050510,0irq/346-484840054-21kswapd008:19:510
81500,0rcu_preempt19-21ksoftirqd/111:24:531
10050500,0irq/346-484840054-21kswapd011:35:070
10050500,0irq/346-484840018379-1kworker/0:0H09:29:470
19992490,0chrt10050irq/346-484840007:34:020
10050490,0irq/346-484840054-21kswapd011:40:280
9950480,0irq/345-484840054-21kswapd012:18:420
81480,0rcu_preempt3-21ksoftirqd/007:04:550
10050480,0irq/346-484840054-21kswapd010:19:400
10050480,0irq/346-48484000-21swapper/012:20:280
10050480,0irq/346-48484000-21swapper/012:20:280
10050480,0irq/346-48484000-21swapper/010:24:520
10050480,0irq/346-48484000-21swapper/009:43:170
81470,0rcu_preempt3-21ksoftirqd/009:14:580
81470,0rcu_preempt23602-21kworker/0:208:39:540
10050470,0irq/346-484840054-21kswapd009:48:050
10050470,0irq/346-4848400292032chrt11:44:530
10050470,0irq/346-48484000-21swapper/011:32:360
81460,0rcu_preempt3-21ksoftirqd/008:18:000
81460,0rcu_preempt19-21ksoftirqd/111:10:021
81460,0rcu_preempt19-21ksoftirqd/109:09:391
26247994615,0cyclictest10117-21ping08:10:090
10050460,0irq/346-48484000-21swapper/012:03:340
9950450,0irq/345-484840010987-21apt-get10:54:490
81450,0rcu_preempt3-21ksoftirqd/011:55:210
81450,0rcu_preempt3-21ksoftirqd/010:49:570
81450,0rcu_preempt3-21ksoftirqd/008:05:550
81450,0rcu_preempt25465-21diskstats08:44:530
81450,0rcu_preempt19-21ksoftirqd/108:14:581
10050450,0irq/346-48484003-21ksoftirqd/007:19:490
81440,0rcu_preempt3-21ksoftirqd/008:52:250
81440,0rcu_preempt3-21ksoftirqd/007:19:000
81440,0rcu_preempt28419-21kworker/0:007:27:380
81430,0rcu_preempt3-21ksoftirqd/012:35:060
81430,0rcu_preempt3-21ksoftirqd/009:56:270
81430,0rcu_preempt3-21ksoftirqd/009:35:410
81430,0rcu_preempt3-21ksoftirqd/009:35:410
81430,0rcu_preempt28419-21kworker/0:007:36:540
81430,0rcu_preempt21029-21ps08:30:030
81430,0rcu_preempt19-21ksoftirqd/107:09:541
81430,0rcu_preempt18885-21diskstats08:24:551
81420,0rcu_preempt3-21ksoftirqd/008:28:160
81420,0rcu_preempt28419-21kworker/0:007:48:530
81420,0rcu_preempt27717-21ssh10:07:180
81420,0rcu_preempt19-21ksoftirqd/111:49:591
10050420,0irq/346-484840017766-21ssh09:25:180
81410,0rcu_preempt3-21ksoftirqd/008:56:100
81410,0rcu_preempt3-21ksoftirqd/008:34:590
81410,0rcu_preempt28419-21kworker/0:007:39:430
81410,0rcu_preempt24741-21apt-get07:04:511
81400,0rcu_preempt3-21ksoftirqd/007:13:440
81400,0rcu_preempt19-21ksoftirqd/108:30:061
10050400,0irq/346-484840031876-21aten_rapower_cu09:04:510
81390,0rcu_preempt3-21ksoftirqd/007:54:410
81390,0rcu_preempt3-21ksoftirqd/007:51:440
81390,0rcu_preempt29536-21ping07:28:001
81390,0rcu_preempt27377-21if_eth308:50:001
81390,0rcu_preempt22245-21kworker/1:112:04:401
81390,0rcu_preempt19-21ksoftirqd/108:34:591
10050390,0irq/346-484840024843-1kworker/1:1H08:59:461
81380,0rcu_preempt29536-21ping07:44:451
81370,0rcu_preempt26208-21sed08:45:041
81370,0rcu_preempt19-21ksoftirqd/107:58:211
81350,0rcu_preempt19-21ksoftirqd/108:40:091
81350,0rcu_preempt19-21ksoftirqd/107:49:571
81330,0rcu_preempt19-21ksoftirqd/108:54:391
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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