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2026-02-14 - 17:28
[ 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 Sat Feb 14, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811120,0rcu_preempt3-21ksoftirqd/010:34:050
81950,0rcu_preempt3-21ksoftirqd/010:07:150
81940,0rcu_preempt3-21ksoftirqd/011:42:040
81910,0rcu_preempt3-21ksoftirqd/009:39:280
81900,0rcu_preempt3-21ksoftirqd/011:04:380
81880,0rcu_preempt3-21ksoftirqd/011:49:430
81870,0rcu_preempt3-21ksoftirqd/008:04:410
81850,0rcu_preempt3-21ksoftirqd/009:48:040
81760,0rcu_preempt3-21ksoftirqd/008:44:400
81750,0rcu_preempt3-21ksoftirqd/012:08:270
81740,0rcu_preempt3-21ksoftirqd/009:49:410
81740,0rcu_preempt3-21ksoftirqd/009:49:410
81720,0rcu_preempt3-21ksoftirqd/008:39:540
81720,0rcu_preempt3-21ksoftirqd/008:24:500
81710,0rcu_preempt3-21ksoftirqd/012:14:470
81710,0rcu_preempt29639-21kworker/0:011:20:210
81700,0rcu_preempt7327-21diskstats09:54:420
81690,0rcu_preempt3-21ksoftirqd/010:39:410
81680,0rcu_preempt3-21ksoftirqd/012:37:030
81680,0rcu_preempt3-21ksoftirqd/012:21:370
81680,0rcu_preempt3-21ksoftirqd/008:34:490
81680,0rcu_preempt10080-21php-cgi08:19:470
81670,0rcu_preempt54-21kswapd009:39:300
81670,0rcu_preempt3-21ksoftirqd/007:14:530
81660,0rcu_preempt19-21ksoftirqd/107:06:031
81650,0rcu_preempt3-21ksoftirqd/012:09:430
81640,0rcu_preempt3-21ksoftirqd/009:18:540
81640,0rcu_preempt3-21ksoftirqd/007:59:410
81630,0rcu_preempt3-21ksoftirqd/010:48:500
81630,0rcu_preempt3-21ksoftirqd/010:34:550
81630,0rcu_preempt19-21ksoftirqd/109:59:381
81620,0rcu_preempt3-21ksoftirqd/011:59:560
81620,0rcu_preempt3-21ksoftirqd/011:28:570
81620,0rcu_preempt3-21ksoftirqd/010:09:400
81620,0rcu_preempt3-21ksoftirqd/008:49:490
81620,0rcu_preempt3-21ksoftirqd/007:09:270
81620,0rcu_preempt19025-21cyclictest11:37:440
10050620,0irq/346-48484006832-1kworker/1:0H10:30:151
10050620,0irq/346-48484004739-1kworker/1:0H10:56:471
81610,0rcu_preempt3-21ksoftirqd/010:24:170
81610,0rcu_preempt3-21ksoftirqd/009:30:510
81610,0rcu_preempt28580-1kworker/0:2H07:39:390
10050610,0irq/346-484840019056-1kworker/1:0H10:05:481
10050610,0irq/346-484840011766-1kworker/1:0H09:30:311
81600,0rcu_preempt3-21ksoftirqd/010:53:000
81600,0rcu_preempt3-21ksoftirqd/010:24:580
81600,0rcu_preempt3-21ksoftirqd/009:59:530
81600,0rcu_preempt3-21ksoftirqd/007:30:400
81600,0rcu_preempt3-21ksoftirqd/007:19:430
286952600,0chrt10050irq/346-484840007:37:370
10050600,0irq/346-48484006832-1kworker/1:0H10:29:221
10050600,0irq/346-4848400560-1kworker/1:3H11:56:481
81590,0rcu_preempt3-21ksoftirqd/012:30:250
81590,0rcu_preempt2854-21ping08:14:380
10050590,0irq/346-484840054-21kswapd012:34:581
10050590,0irq/346-484840054-21kswapd011:43:541
10050590,0irq/346-484840022833-1kworker/1:0H11:47:361
81580,0rcu_preempt3-21ksoftirqd/011:55:520
81580,0rcu_preempt3-21ksoftirqd/011:14:540
10050580,0irq/346-48484004659-1kworker/1:3H09:53:071
10050580,0irq/346-48484004659-1kworker/1:3H09:53:071
10050580,0irq/346-484840031211-1kworker/1:0H09:48:471
81570,0rcu_preempt3-21ksoftirqd/009:27:170
81570,0rcu_preempt3-21ksoftirqd/009:11:450
10050570,0irq/346-48484005676-1kworker/1:0H12:05:061
10050570,0irq/346-484840054-21kswapd009:26:271
10050570,0irq/346-484840032477-1kworker/1:3H10:21:481
10050570,0irq/346-484840019931-1kworker/1:2H11:11:411
81560,0rcu_preempt54-21kswapd011:59:281
10050560,0irq/346-484840030996-1kworker/1:0H12:27:321
10050560,0irq/346-484840020876-1kworker/1:1H12:19:161
81550,0rcu_preempt3-21ksoftirqd/011:09:530
81550,0rcu_preempt3-21ksoftirqd/007:54:390
81550,0rcu_preempt0-21swapper/009:22:450
10050550,0irq/346-48484007688-1kworker/1:1H11:33:241
10050550,0irq/346-484840054-21kswapd009:42:031
10050550,0irq/346-484840032107-1kworker/1:2H10:54:241
81540,0rcu_preempt3-21ksoftirqd/011:29:280
81540,0rcu_preempt3-21ksoftirqd/010:57:340
10050540,0irq/346-484840054-21kswapd010:42:391
10050540,0irq/346-484840029130-1kworker/1:2H10:17:311
10050540,0irq/346-484840025850-1kworker/1:1H09:22:381
10050540,0irq/346-484840017617-21idleruntime-cro11:09:261
81530,0rcu_preempt3-21ksoftirqd/011:44:470
81530,0rcu_preempt3-21ksoftirqd/011:00:160
81530,0rcu_preempt3-21ksoftirqd/008:54:480
10050530,0irq/346-484840054-21kswapd011:51:081
10050530,0irq/346-484840054-21kswapd011:17:191
10050530,0irq/346-484840024209-1kworker/1:2H09:11:361
81520,0rcu_preempt3-21ksoftirqd/008:14:270
81520,0rcu_preempt3-21ksoftirqd/007:25:540
10050520,0irq/346-484840027042-1kworker/1:0H10:48:071
81510,0rcu_preempt3-21ksoftirqd/012:24:390
81510,0rcu_preempt3-21ksoftirqd/010:14:380
10050510,0irq/346-48484003671-1kworker/1:1H12:33:361
10050510,0irq/346-484840024068-1kworker/1:1H10:13:301
10050510,0irq/346-484840015813-1kworker/1:3H12:13:561
81500,0rcu_preempt19-21ksoftirqd/107:09:401
10050500,0irq/346-48484006911-21ssh09:54:281
10050500,0irq/346-484840024974-1kworker/1:0H11:20:101
9950490,0irq/345-4848400851-21rngd12:19:421
9950490,0irq/345-4848400851-21rngd11:26:231
10050490,0irq/346-484840054-21kswapd008:19:411
10050490,0irq/346-484840022543-1kworker/0:2H08:59:370
10050490,0irq/346-484840017705-1kworker/1:0H10:37:031
10050480,0irq/346-48484009086-21ssh10:59:591
10050480,0irq/346-484840022275-21ssh09:37:121
81470,0rcu_preempt32359-21ps09:14:541
81470,0rcu_preempt3-21ksoftirqd/009:04:380
10050470,0irq/346-48484007688-1kworker/1:1H11:38:271
10050470,0irq/346-484840022542-1kworker/1:1H08:59:271
9950460,0irq/345-48484000-21swapper/107:41:231
9950450,0irq/345-484840022311-21ping07:19:421
81450,0rcu_preempt3-21ksoftirqd/008:29:530
81450,0rcu_preempt19-21ksoftirqd/107:36:401
81450,0rcu_preempt19176-21apt-get07:09:380
10050450,0irq/346-484840030934-21fschecks_time07:44:450
10050450,0irq/346-484840022311-21ping07:26:511
81440,0rcu_preempt19-21ksoftirqd/107:52:431
81430,0rcu_preempt19-21ksoftirqd/108:34:501
81430,0rcu_preempt19-21ksoftirqd/108:24:481
81430,0rcu_preempt19-21ksoftirqd/108:14:411
81430,0rcu_preempt19-21ksoftirqd/107:44:551
81430,0rcu_preempt19-21ksoftirqd/107:29:551
81420,0rcu_preempt19-21ksoftirqd/109:09:131
81420,0rcu_preempt0-21swapper/007:49:380
81400,0rcu_preempt19-21ksoftirqd/108:59:351
81400,0rcu_preempt19-21ksoftirqd/108:09:521
81400,0rcu_preempt19-21ksoftirqd/108:04:421
81400,0rcu_preempt19-21ksoftirqd/107:54:571
81390,0rcu_preempt3729-21irqstats07:59:531
81390,0rcu_preempt19-21ksoftirqd/108:49:421
81360,0rcu_preempt19-21ksoftirqd/108:39:531
81350,0rcu_preempt19-21ksoftirqd/108:44:431
81350,0rcu_preempt19-21ksoftirqd/108:29:441
10050300,0irq/346-48484000-21swapper/107:14:411
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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