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2026-02-10 - 01:44
[ 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 Mon Feb 09, 2026 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81810,0rcu_preempt19-21ksoftirqd/112:20:021
81690,0rcu_preempt3-21ksoftirqd/010:49:320
81650,0rcu_preempt3-21ksoftirqd/009:54:390
81650,0rcu_preempt12347-1kworker/1:1H11:25:381
81640,0rcu_preempt3-21ksoftirqd/011:09:310
10050630,0irq/346-4848400111rcuc/010:19:490
10050620,0irq/346-48484007541-1kworker/1:2H10:19:351
10050620,0irq/346-484840017381-1kworker/1:3H11:47:171
10050620,0irq/346-484840012910-1kworker/1:1H12:28:351
81610,0rcu_preempt3-21ksoftirqd/011:40:000
10050610,0irq/346-484840014773-1kworker/1:0H09:51:131
81600,0rcu_preempt3-21ksoftirqd/008:15:010
10050600,0irq/346-4848400851-21rngd12:07:360
10050600,0irq/346-484840054-21kswapd012:39:191
10050600,0irq/346-484840015080-1kworker/1:2H11:56:451
10050580,0irq/346-484840032432-1kworker/1:1H11:43:321
10050580,0irq/346-48484002506-1kworker/1:0H10:06:571
10050570,0irq/346-48484002278-1kworker/1:1H11:14:471
10050570,0irq/346-4848400181ktimersoftd/111:51:391
81560,0rcu_preempt19647-21ping08:24:480
81560,0rcu_preempt19647-21ping08:19:580
10050560,0irq/346-4848400851-21rngd08:39:320
10050560,0irq/346-484840028177-1kworker/1:0H11:39:131
10050560,0irq/346-484840022588-1kworker/1:0H10:28:191
10050560,0irq/346-484840014773-1kworker/1:0H09:58:461
10050550,0irq/346-484840054-21kswapd012:24:570
10050550,0irq/346-484840030205-1kworker/1:0H12:14:511
10050550,0irq/346-484840012910-1kworker/1:1H12:30:211
81540,0rcu_preempt3-21ksoftirqd/009:09:430
10050540,0irq/346-48484007424-1kworker/1:3H09:43:121
10050540,0irq/346-484840054-21kswapd009:47:301
10050540,0irq/346-484840054-21kswapd007:59:460
10050540,0irq/346-484840023147-1kworker/1:2H11:32:231
10050540,0irq/346-484840015337-1kworker/1:2H11:00:511
81530,0rcu_preempt3-21ksoftirqd/011:09:490
81530,0rcu_preempt3-21ksoftirqd/010:29:480
81530,0rcu_preempt3-21ksoftirqd/008:49:550
10050530,0irq/346-48484009466-1kworker/1:1H09:11:121
10050530,0irq/346-48484007541-1kworker/1:2H10:13:351
10050530,0irq/346-484840054-21kswapd009:59:410
10050530,0irq/346-484840030207-1kworker/0:2H12:19:470
10050530,0irq/346-484840030205-1kworker/1:0H12:12:281
10050530,0irq/346-484840025144-1kworker/1:1H12:06:401
10050530,0irq/346-48484000-21swapper/010:37:280
81520,0rcu_preempt740-21apt-get08:39:450
81520,0rcu_preempt3-21ksoftirqd/012:04:170
10050520,0irq/346-48484005606-21ssh12:19:320
10050520,0irq/346-484840014773-1kworker/1:0H10:00:461
10050520,0irq/346-4848400124312sleep010:16:340
9950510,0irq/345-48484006699-21ping07:39:430
81510,0rcu_preempt3-21ksoftirqd/011:14:560
81510,0rcu_preempt3-21ksoftirqd/010:25:000
81510,0rcu_preempt3-21ksoftirqd/010:09:490
81510,0rcu_preempt3-21ksoftirqd/009:49:480
81510,0rcu_preempt3-21ksoftirqd/009:19:530
81510,0rcu_preempt19-21ksoftirqd/107:41:191
81510,0rcu_preempt15547-21grep09:14:550
10050510,0irq/346-4848400851-21rngd09:37:420
10050510,0irq/346-484840054-21kswapd011:33:490
10050510,0irq/346-484840054-21kswapd011:24:410
10050510,0irq/346-484840029661-1kworker/1:0H11:23:211
10050510,0irq/346-484840028445-21ssh10:32:491
10050510,0irq/346-484840025110-1kworker/1:1H09:25:431
10050510,0irq/346-48484002278-1kworker/1:1H11:11:101
10050510,0irq/346-484840015337-1kworker/1:2H10:56:431
10050510,0irq/346-484840012818-21ssh09:44:530
10050510,0irq/346-484840010816-1kworker/0:1H11:54:440
81500,0rcu_preempt3-21ksoftirqd/012:29:480
81500,0rcu_preempt3-21ksoftirqd/010:54:460
81500,0rcu_preempt3-21ksoftirqd/010:04:520
81500,0rcu_preempt3-21ksoftirqd/009:33:210
81500,0rcu_preempt3-21ksoftirqd/007:54:540
81500,0rcu_preempt24654-21apt-get09:24:420
81500,0rcu_preempt19-21ksoftirqd/111:59:491
81500,0rcu_preempt19-21ksoftirqd/107:24:581
10050500,0irq/346-484840054-21kswapd010:41:071
10050500,0irq/346-484840031885-21ssh09:31:151
10050500,0irq/346-484840011913-21ssh10:15:531
9950490,0irq/345-484840010292-1kworker/0:0H10:51:460
81490,0rcu_preempt7584-21diskstats08:59:470
81490,0rcu_preempt3-21ksoftirqd/011:34:430
81490,0rcu_preempt3-21ksoftirqd/007:09:490
10050490,0irq/346-484840027620-1kworker/1:2H10:36:121
10050490,0irq/346-484840014725-21ssh09:14:411
10050490,0irq/346-484840010294-1kworker/1:1H10:50:231
81480,0rcu_preempt3-21ksoftirqd/012:11:100
81480,0rcu_preempt3-21ksoftirqd/011:19:520
81480,0rcu_preempt3-21ksoftirqd/007:14:430
81480,0rcu_preempt3-21ksoftirqd/007:06:210
10050480,0irq/346-48484006699-21ping07:19:430
10050480,0irq/346-484840054-21kswapd009:34:361
10050480,0irq/346-484840015337-1kworker/1:2H11:05:041
81470,0rcu_preempt3-21ksoftirqd/012:38:500
81470,0rcu_preempt3-21ksoftirqd/010:39:530
81470,0rcu_preempt3-21ksoftirqd/008:54:470
81470,0rcu_preempt19-21ksoftirqd/108:14:571
81460,0rcu_preempt3-21ksoftirqd/008:09:450
81460,0rcu_preempt3-21ksoftirqd/008:05:130
81460,0rcu_preempt3-21ksoftirqd/007:49:570
81460,0rcu_preempt19-21ksoftirqd/107:39:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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