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2026-02-03 - 21:51
[ 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 Tue Feb 03, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811170,0rcu_preempt19-21ksoftirqd/110:45:031
811020,0rcu_preempt0-21swapper/110:26:171
81980,0rcu_preempt19-21ksoftirqd/110:06:141
81960,0rcu_preempt19-21ksoftirqd/111:56:481
81960,0rcu_preempt19-21ksoftirqd/111:56:481
81960,0rcu_preempt19-21ksoftirqd/109:30:041
81950,0rcu_preempt19-21ksoftirqd/112:32:531
81920,0rcu_preempt19-21ksoftirqd/107:28:121
81910,0rcu_preempt19-21ksoftirqd/111:19:471
81910,0rcu_preempt19-21ksoftirqd/109:12:481
81890,0rcu_preempt19-21ksoftirqd/110:16:361
81890,0rcu_preempt19-21ksoftirqd/110:16:361
81880,0rcu_preempt54-21kswapd010:39:481
81880,0rcu_preempt19-21ksoftirqd/110:51:221
81860,0rcu_preempt54-21kswapd012:36:381
81860,0rcu_preempt19-21ksoftirqd/110:14:351
81860,0rcu_preempt19-21ksoftirqd/109:37:411
81850,0rcu_preempt19-21ksoftirqd/112:26:051
81850,0rcu_preempt19-21ksoftirqd/112:20:461
81850,0rcu_preempt19-21ksoftirqd/111:49:071
81840,0rcu_preempt54-21kswapd011:32:551
81840,0rcu_preempt19-21ksoftirqd/108:24:551
81840,0rcu_preempt19-21ksoftirqd/108:24:551
81840,0rcu_preempt0-21swapper/108:48:101
81830,0rcu_preempt19-21ksoftirqd/109:41:041
81820,0rcu_preempt19-21ksoftirqd/110:55:571
81810,0rcu_preempt19-21ksoftirqd/111:04:361
81800,0rcu_preempt19-21ksoftirqd/111:51:311
81800,0rcu_preempt19-21ksoftirqd/109:51:141
81780,0rcu_preempt19-21ksoftirqd/109:19:441
81750,0rcu_preempt851-21rngd08:31:431
81750,0rcu_preempt19-21ksoftirqd/112:03:321
10050750,0irq/346-484840015125-21ssh11:19:380
81740,0rcu_preempt54-21kswapd009:17:411
81730,0rcu_preempt5318-21ssh10:36:481
81720,0rcu_preempt19-21ksoftirqd/109:47:461
81710,0rcu_preempt2864-21sh12:11:441
81700,0rcu_preempt19-21ksoftirqd/111:18:201
81680,0rcu_preempt851-21rngd07:12:071
81670,0rcu_preempt19-21ksoftirqd/111:26:411
81670,0rcu_preempt19-21ksoftirqd/111:26:411
81670,0rcu_preempt19-21ksoftirqd/111:11:071
81660,0rcu_preempt19-21ksoftirqd/109:58:091
81660,0rcu_preempt19-21ksoftirqd/108:49:481
81660,0rcu_preempt0-21swapper/109:26:221
81650,0rcu_preempt3-21ksoftirqd/011:15:050
10050650,0irq/346-48484009838-1kworker/0:0H11:46:140
81640,0rcu_preempt19-21ksoftirqd/108:14:541
81640,0rcu_preempt0-21swapper/111:37:001
10050640,0irq/346-48484000-21swapper/009:59:460
81630,0rcu_preempt3-21ksoftirqd/011:35:040
81620,0rcu_preempt3-21ksoftirqd/009:29:370
81610,0rcu_preempt19-21ksoftirqd/112:18:291
81610,0rcu_preempt19-21ksoftirqd/112:05:041
81600,0rcu_preempt19-21ksoftirqd/110:22:561
81600,0rcu_preempt19-21ksoftirqd/109:04:581
81590,0rcu_preempt19-21ksoftirqd/108:55:001
81580,0rcu_preempt19-21ksoftirqd/109:02:451
81580,0rcu_preempt19-21ksoftirqd/108:20:281
81580,0rcu_preempt19-21ksoftirqd/107:59:561
81570,0rcu_preempt19-21ksoftirqd/110:29:561
81570,0rcu_preempt19-21ksoftirqd/108:13:001
81570,0rcu_preempt19-21ksoftirqd/107:58:521
81550,0rcu_preempt3-21ksoftirqd/010:20:330
81550,0rcu_preempt19-21ksoftirqd/108:06:271
81550,0rcu_preempt19-21ksoftirqd/107:49:491
81540,0rcu_preempt19-21ksoftirqd/108:34:511
10050540,0irq/346-484840010277-21apt-get10:09:470
81530,0rcu_preempt29815-21ssh11:34:250
10050530,0irq/346-484840054-21kswapd011:02:540
10050530,0irq/346-484840054-21kswapd010:03:511
81520,0rcu_preempt3-21ksoftirqd/010:39:420
81520,0rcu_preempt19-21ksoftirqd/107:14:591
10050520,0irq/346-484840027028-1kworker/0:1H10:28:570
81510,0rcu_preempt19-21ksoftirqd/107:29:491
10050510,0irq/346-4848400851-21rngd11:42:210
10050510,0irq/346-484840022429-1kworker/0:1H12:32:410
81500,0rcu_preempt3-21ksoftirqd/012:09:560
10050500,0irq/346-484840024658-1kworker/0:1H10:58:490
10050500,0irq/346-484840019830-1kworker/0:2H11:58:470
10050500,0irq/346-484840019830-1kworker/0:2H11:58:470
10050500,0irq/346-484840014439-1kworker/0:3H09:46:050
81490,0rcu_preempt7654-21kworker/0:312:17:060
81490,0rcu_preempt18926-21kworker/1:208:40:021
81490,0rcu_preempt0-21swapper/111:44:221
10050490,0irq/346-484840054-21kswapd009:52:380
10050490,0irq/346-484840029603-1kworker/0:3H11:06:560
81480,0rcu_preempt3-21ksoftirqd/010:45:010
81480,0rcu_preempt19-21ksoftirqd/107:34:561
10050480,0irq/346-48484004619-1kworker/0:1H10:36:000
10050480,0irq/346-484840027692-1kworker/0:0H09:38:320
10050480,0irq/346-484840022797-21apt-get11:59:490
81470,0rcu_preempt3-21ksoftirqd/008:19:390
81470,0rcu_preempt3-21ksoftirqd/007:04:530
81470,0rcu_preempt19-21ksoftirqd/111:04:461
81470,0rcu_preempt19-21ksoftirqd/107:48:271
10050470,0irq/346-484840013737-21ssh09:40:030
10050470,0irq/346-48484000-21swapper/011:10:250
890599467,0cyclictest18762-21latency_hist07:39:390
81460,0rcu_preempt19-21ksoftirqd/107:40:531
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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