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2026-03-02 - 21:58
[ 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 Mon Mar 02, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811270,0rcu_preempt19-21ksoftirqd/109:18:281
811110,0rcu_preempt19-21ksoftirqd/110:44:121
81920,0rcu_preempt3-21ksoftirqd/009:39:390
10050790,0irq/346-4848400111rcuc/012:08:240
81750,0rcu_preempt18476-21sshd10:44:361
81740,0rcu_preempt3-21ksoftirqd/010:20:220
81740,0rcu_preempt19-21ksoftirqd/112:12:131
81740,0rcu_preempt19-21ksoftirqd/112:12:131
81730,0rcu_preempt3-21ksoftirqd/011:18:300
81730,0rcu_preempt3-21ksoftirqd/010:12:560
81730,0rcu_preempt19-21ksoftirqd/111:22:301
81730,0rcu_preempt19-21ksoftirqd/110:31:401
81700,0rcu_preempt3-21ksoftirqd/011:40:300
81700,0rcu_preempt19-21ksoftirqd/109:28:031
10050700,0irq/346-484840041ktimersoftd/011:50:590
10050700,0irq/346-484840041ktimersoftd/011:50:590
81690,0rcu_preempt19-21ksoftirqd/111:40:521
81690,0rcu_preempt19-21ksoftirqd/110:54:411
1320799692,0cyclictest3519-21ntp_states10:29:360
10050690,0irq/346-4848400111rcuc/007:26:220
81670,0rcu_preempt3-21ksoftirqd/009:24:300
81670,0rcu_preempt19-21ksoftirqd/112:29:301
81670,0rcu_preempt19-21ksoftirqd/112:29:301
81670,0rcu_preempt17758-21kworker/0:008:04:220
81660,0rcu_preempt19-21ksoftirqd/110:21:561
81660,0rcu_preempt19-21ksoftirqd/110:08:191
81650,0rcu_preempt19-21ksoftirqd/110:36:171
10050650,0irq/346-484840022158-1kworker/1:2H12:26:441
81640,0rcu_preempt3-21ksoftirqd/011:24:320
81640,0rcu_preempt19-21ksoftirqd/111:26:511
81630,0rcu_preempt3-21ksoftirqd/010:49:250
81630,0rcu_preempt3-21ksoftirqd/009:17:260
10050630,0irq/346-484840024687-1kworker/1:3H11:59:011
81620,0rcu_preempt19-21ksoftirqd/111:04:481
81620,0rcu_preempt19-21ksoftirqd/111:04:481
81620,0rcu_preempt19-21ksoftirqd/109:21:481
81620,0rcu_preempt19-21ksoftirqd/109:13:411
10050620,0irq/346-484840017363-1kworker/1:1H10:10:531
10050620,0irq/346-484840014961-1kworker/1:1H09:39:501
81610,0rcu_preempt3-21ksoftirqd/011:29:350
81610,0rcu_preempt3-21ksoftirqd/008:39:340
81610,0rcu_preempt19-21ksoftirqd/112:21:361
81610,0rcu_preempt19-21ksoftirqd/112:21:361
81610,0rcu_preempt19-21ksoftirqd/109:44:291
81610,0rcu_preempt19-21ksoftirqd/109:31:251
10050610,0irq/346-48484007415-1kworker/1:1H10:03:011
10050610,0irq/346-48484007367-1kworker/1:1H11:15:291
10050610,0irq/346-484840027304-1kworker/1:2H10:25:001
10050610,0irq/346-484840012342-1kworker/1:3H11:11:111
81600,0rcu_preempt19-21ksoftirqd/110:49:221
10050600,0irq/346-48484007224-1kworker/1:1H12:15:241
10050600,0irq/346-484840032214-1kworker/1:2H11:38:431
81590,0rcu_preempt3-21ksoftirqd/009:49:240
10050590,0irq/346-484840017363-1kworker/1:1H10:14:441
1320799586,0cyclictest3-21ksoftirqd/010:54:300
1320799582,0cyclictest0-21swapper/008:19:110
10050580,0irq/346-484840029678-1kworker/1:1H12:02:541
81570,0rcu_preempt3-21ksoftirqd/012:20:180
81570,0rcu_preempt3-21ksoftirqd/012:20:180
81570,0rcu_preempt19-21ksoftirqd/109:34:351
10050570,0irq/346-48484006012-21ssh09:59:330
81560,0rcu_preempt54-21kswapd008:49:121
81560,0rcu_preempt10050irq/346-484840007:44:490
1320799563,0cyclictest3244250kworker/0:0H09:23:050
10050560,0irq/346-48484004799-1kworker/1:1H11:45:331
81550,0rcu_preempt3-21ksoftirqd/007:59:390
1320799559,0cyclictest0-21swapper/012:18:570
1320799552,0cyclictest0-21swapper/007:34:480
10050550,0irq/346-484840054-21kswapd009:50:591
10050550,0irq/346-4848400125952sleep011:11:180
81540,0rcu_preempt3-21ksoftirqd/008:54:310
10050540,0irq/346-484840054-21kswapd011:20:280
10050540,0irq/346-484840054-21kswapd010:36:250
10050540,0irq/346-484840029867-1kworker/1:2H09:55:011
81530,0rcu_preempt3-21ksoftirqd/007:04:280
1320799531,0cyclictest0-21swapper/012:02:260
81520,0rcu_preempt3-21ksoftirqd/012:24:270
81520,0rcu_preempt3-21ksoftirqd/010:24:300
81520,0rcu_preempt3-21ksoftirqd/008:09:220
81520,0rcu_preempt19-21ksoftirqd/108:19:211
10050520,0irq/346-4848400851-21rngd12:06:171
10050520,0irq/346-484840054-21kswapd010:16:450
10050520,0irq/346-484840017336-1kworker/1:0H11:33:431
81510,0rcu_preempt3-21ksoftirqd/012:31:440
81510,0rcu_preempt3-21ksoftirqd/012:31:440
81510,0rcu_preempt3-21ksoftirqd/011:04:380
81510,0rcu_preempt3-21ksoftirqd/011:04:380
81510,0rcu_preempt3-21ksoftirqd/010:39:220
81510,0rcu_preempt3-21ksoftirqd/009:56:240
81510,0rcu_preempt19-21ksoftirqd/108:09:291
10050510,0irq/346-4848400851-21rngd11:02:490
10050510,0irq/346-484840019713-1kworker/1:1H11:52:161
10050510,0irq/346-484840019713-1kworker/1:1H11:52:161
81500,0rcu_preempt3-21ksoftirqd/011:47:130
81500,0rcu_preempt3-21ksoftirqd/010:04:380
81500,0rcu_preempt3-21ksoftirqd/009:34:350
81500,0rcu_preempt3-21ksoftirqd/009:29:370
81500,0rcu_preempt3-21ksoftirqd/009:09:320
81500,0rcu_preempt3-21ksoftirqd/008:24:350
81500,0rcu_preempt19-21ksoftirqd/107:59:401
81500,0rcu_preempt18347-21meminfo10:44:340
81500,0rcu_preempt14045-21kworker/0:212:37:540
81500,0rcu_preempt11729-1kworker/dying08:51:350
10050500,0irq/346-484840054-21kswapd012:13:050
10050500,0irq/346-484840054-21kswapd012:13:050
10050500,0irq/346-484840031588-21sendmail-mta08:04:261
81490,0rcu_preempt3-21ksoftirqd/011:54:280
81490,0rcu_preempt19-21ksoftirqd/112:34:291
10050490,0irq/346-484840054-21kswapd009:45:330
81480,0rcu_preempt3-21ksoftirqd/007:51:110
81480,0rcu_preempt19-21ksoftirqd/107:39:351
81480,0rcu_preempt19-21ksoftirqd/107:27:001
10050480,0irq/346-48484004798-1kworker/0:2H11:38:080
81470,0rcu_preempt851-21rngd08:34:380
81470,0rcu_preempt3-21ksoftirqd/007:09:240
81470,0rcu_preempt19-21ksoftirqd/108:39:221
81470,0rcu_preempt19-21ksoftirqd/108:18:331
81470,0rcu_preempt19-21ksoftirqd/107:19:251
10050470,0irq/346-484840016496-21ping07:32:401
81460,0rcu_preempt3-21ksoftirqd/007:59:080
81460,0rcu_preempt19-21ksoftirqd/108:59:321
81460,0rcu_preempt18713-21apt-get09:04:210
81460,0rcu_preempt12132-21apt-get08:44:230
81450,0rcu_preempt3-21ksoftirqd/008:23:210
81450,0rcu_preempt19-21ksoftirqd/107:58:401
81450,0rcu_preempt19-21ksoftirqd/107:45:171
81450,0rcu_preempt19-21ksoftirqd/107:36:151
10050450,0irq/346-484840054-21kswapd007:31:230
81440,0rcu_preempt7862-21ntpq08:29:350
81440,0rcu_preempt19-21ksoftirqd/111:02:581
81440,0rcu_preempt19-21ksoftirqd/108:24:131
81440,0rcu_preempt19-21ksoftirqd/107:49:211
81440,0rcu_preempt19-21ksoftirqd/107:09:271
1599440,0migration/017951-21taskset07:22:100
81430,0rcu_preempt3-21ksoftirqd/007:14:140
81420,0rcu_preempt3-21ksoftirqd/008:59:470
81420,0rcu_preempt19-21ksoftirqd/108:44:411
81410,0rcu_preempt19-21ksoftirqd/107:14:281
81400,0rcu_preempt19-21ksoftirqd/109:05:141
81400,0rcu_preempt19-21ksoftirqd/108:37:361
81390,0rcu_preempt19-21ksoftirqd/108:57:121
81390,0rcu_preempt19-21ksoftirqd/108:29:391
1320799382,0cyclictest0-21swapper/007:39:350
81370,0rcu_preempt19-21ksoftirqd/107:06:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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