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2026-01-15 - 22:27
[ 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 Thu Jan 15, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811120,0rcu_preempt19-21ksoftirqd/112:10:101
811070,0rcu_preempt3-21ksoftirqd/008:35:200
81950,0rcu_preempt3-21ksoftirqd/009:13:160
81940,0rcu_preempt9950irq/345-484840007:19:580
81900,0rcu_preempt12597-21diskmemload10:20:100
81870,0rcu_preempt3-21ksoftirqd/009:40:120
81830,0rcu_preempt3-21ksoftirqd/012:15:300
81820,0rcu_preempt3-21ksoftirqd/012:38:040
81820,0rcu_preempt3-21ksoftirqd/008:15:110
81810,0rcu_preempt3-21ksoftirqd/010:34:520
81750,0rcu_preempt3-21ksoftirqd/010:12:040
81740,0rcu_preempt19-21ksoftirqd/107:20:011
81730,0rcu_preempt3-21ksoftirqd/011:40:040
81720,0rcu_preempt32232-21apt-get11:45:040
81720,0rcu_preempt3-21ksoftirqd/011:50:520
81720,0rcu_preempt3-21ksoftirqd/010:35:050
81720,0rcu_preempt3-21ksoftirqd/008:10:150
81710,0rcu_preempt3-21ksoftirqd/010:40:200
81710,0rcu_preempt3-21ksoftirqd/010:40:200
81710,0rcu_preempt10432-21ssh12:29:550
81690,0rcu_preempt3-21ksoftirqd/011:30:230
10050690,0irq/346-4848400171rcuc/112:05:291
81680,0rcu_preempt3-21ksoftirqd/008:55:160
81680,0rcu_preempt3-21ksoftirqd/008:05:110
81680,0rcu_preempt3-21ksoftirqd/008:00:140
81670,0rcu_preempt3-21ksoftirqd/009:04:550
81670,0rcu_preempt19-21ksoftirqd/112:20:481
81660,0rcu_preempt3-21ksoftirqd/011:19:580
81620,0rcu_preempt3-21ksoftirqd/009:35:110
81620,0rcu_preempt15027-21kworker/0:007:25:320
10050620,0irq/346-484840030480-1kworker/1:0H12:17:231
81600,0rcu_preempt3-21ksoftirqd/011:27:200
81600,0rcu_preempt3-21ksoftirqd/009:20:000
81600,0rcu_preempt21160-21ps07:55:180
81600,0rcu_preempt19-21ksoftirqd/108:10:171
81600,0rcu_preempt19036-21ssh12:05:030
10050600,0irq/346-484840054-21kswapd012:04:221
81590,0rcu_preempt3-21ksoftirqd/007:15:170
10050590,0irq/346-484840032498-1kworker/1:2H10:43:031
10050590,0irq/346-484840032498-1kworker/1:2H10:43:031
81580,0rcu_preempt3-21ksoftirqd/010:50:550
81580,0rcu_preempt3-21ksoftirqd/010:50:550
81580,0rcu_preempt3-21ksoftirqd/009:45:110
81570,0rcu_preempt3-21ksoftirqd/007:45:130
81570,0rcu_preempt3-21ksoftirqd/007:10:180
10050570,0irq/346-484840016791-21munin-node0
10050570,0irq/346-48484000-21swapper/011:11:560
81560,0rcu_preempt3-21ksoftirqd/010:05:170
81560,0rcu_preempt1022-21apt-get12:20:060
10050560,0irq/346-484840054-21kswapd010:25:220
10050560,0irq/346-48484004225-21munin-node0
10050560,0irq/346-484840027733-1kworker/1:1H10:34:471
81550,0rcu_preempt3-21ksoftirqd/009:31:090
10050550,0irq/346-4848400851-21rngd11:07:320
10050550,0irq/346-484840054-21kswapd010:17:101
81540,0rcu_preempt3-21ksoftirqd/011:15:040
81540,0rcu_preempt3-21ksoftirqd/007:39:570
10050530,0irq/346-484840016803-1kworker/0:1H12:03:110
81520,0rcu_preempt3-21ksoftirqd/012:14:430
81520,0rcu_preempt3-21ksoftirqd/011:00:010
81520,0rcu_preempt3-21ksoftirqd/010:00:090
10050520,0irq/346-484840032498-1kworker/1:2H10:39:231
81510,0rcu_preempt3-21ksoftirqd/009:55:140
81510,0rcu_preempt3-21ksoftirqd/008:30:130
10050510,0irq/346-48484005492-21cyclictest08:19:560
10050510,0irq/346-48484002250-1kworker/1:1H09:36:301
10050510,0irq/346-484840016893-1kworker/1:2H09:48:071
10050500,0irq/346-48484007166-1kworker/0:0H11:55:010
81490,0rcu_preempt0-21swapper/010:16:240
10050490,0irq/346-4848400851-21rngd12:31:010
81480,0rcu_preempt3-21ksoftirqd/009:25:220
81480,0rcu_preempt3-21ksoftirqd/009:00:170
81480,0rcu_preempt3-21ksoftirqd/008:50:160
81480,0rcu_preempt3-21ksoftirqd/007:50:100
81480,0rcu_preempt18962-21grep09:15:240
81480,0rcu_preempt17321-1kworker/1:0H12:39:541
81470,0rcu_preempt3-21ksoftirqd/009:50:210
81470,0rcu_preempt19-21ksoftirqd/109:54:021
10050470,0irq/346-484840029489-21ssh11:41:291
10050470,0irq/346-484840015360-21munin-run07:39:550
10050460,0irq/346-48484007271-21apt-get10:45:040
10050460,0irq/346-484840022592-1kworker/1:3H09:20:021
81450,0rcu_preempt26092-21taskset11:38:260
81450,0rcu_preempt19-21ksoftirqd/107:05:131
81440,0rcu_preempt3-21ksoftirqd/008:40:160
81440,0rcu_preempt19-21ksoftirqd/109:13:381
549399442,0cyclictest8782-21ping07:30:060
549399442,0cyclictest8782-21ping07:30:060
9950430,0irq/345-4848400851-21rngd11:19:591
81430,0rcu_preempt19-21ksoftirqd/110:26:061
81430,0rcu_preempt19-21ksoftirqd/107:36:281
10050430,0irq/346-484840031500-1kworker/0:2H08:26:360
81420,0rcu_preempt19-21ksoftirqd/110:10:361
81420,0rcu_preempt19-21ksoftirqd/108:05:221
81420,0rcu_preempt19-21ksoftirqd/107:25:301
81420,0rcu_preempt0-21swapper/111:10:241
10050420,0irq/346-48484000-21swapper/108:51:401
81410,0rcu_preempt19-21ksoftirqd/112:28:101
81410,0rcu_preempt19-21ksoftirqd/111:03:101
81400,0rcu_preempt19-21ksoftirqd/111:16:031
81400,0rcu_preempt19-21ksoftirqd/110:09:281
81400,0rcu_preempt19-21ksoftirqd/107:30:281
81400,0rcu_preempt19-21ksoftirqd/107:30:281
10050400,0irq/346-4848400851-21rngd12:31:541
81390,0rcu_preempt54-21kswapd011:47:591
81390,0rcu_preempt3-21ksoftirqd/008:46:430
81390,0rcu_preempt19-21ksoftirqd/111:55:461
81390,0rcu_preempt19-21ksoftirqd/111:06:351
81390,0rcu_preempt19-21ksoftirqd/109:55:341
81380,0rcu_preempt19-21ksoftirqd/111:54:161
81380,0rcu_preempt19-21ksoftirqd/110:56:461
10050380,0irq/346-48484002250-1kworker/1:1H09:33:231
10050380,0irq/346-484840015604-1kworker/1:0H11:28:001
81370,0rcu_preempt19-21ksoftirqd/111:30:211
81370,0rcu_preempt19-21ksoftirqd/109:40:481
81370,0rcu_preempt19-21ksoftirqd/109:25:181
81370,0rcu_preempt19-21ksoftirqd/109:15:081
81370,0rcu_preempt19-21ksoftirqd/108:35:191
10050370,0irq/346-48484008561-1kworker/1:1H10:20:371
10050370,0irq/346-484840020348-1kworker/1:1H11:36:081
81360,0rcu_preempt12597-21diskmemload10:01:501
81350,0rcu_preempt8894-21ssh10:45:541
81350,0rcu_preempt19-21ksoftirqd/108:45:211
81350,0rcu_preempt19-21ksoftirqd/108:04:541
81350,0rcu_preempt12597-21diskmemload10:50:501
81350,0rcu_preempt12597-21diskmemload10:50:501
81340,0rcu_preempt19-21ksoftirqd/108:28:311
81340,0rcu_preempt19-21ksoftirqd/108:21:031
81340,0rcu_preempt19-21ksoftirqd/108:15:201
81340,0rcu_preempt19-21ksoftirqd/107:50:061
81330,0rcu_preempt19-21ksoftirqd/108:41:241
81330,0rcu_preempt19-21ksoftirqd/107:47:051
81330,0rcu_preempt0-21swapper/107:59:361
10050330,0irq/346-48484000-21swapper/109:06:081
9950320,0irq/345-48484008782-21ping07:39:571
81320,0rcu_preempt19-21ksoftirqd/108:30:141
10050320,0irq/346-48484008564-21taskset07:17:461
10050320,0irq/346-48484000-21swapper/108:57:041
9950280,0irq/345-4848400549499cyclictest09:00:031
81260,0rcu_preempt19-21ksoftirqd/107:10:041
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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