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2026-02-07 - 21:53
[ 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 07, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81950,0rcu_preempt3-21ksoftirqd/012:00:520
81890,0rcu_preempt3-21ksoftirqd/010:04:460
81890,0rcu_preempt3-21ksoftirqd/010:04:460
81890,0rcu_preempt15742-1kworker/1:2H07:39:351
10050760,0irq/346-484840054-21kswapd012:22:370
10050730,0irq/346-484840054-21kswapd010:44:520
10050730,0irq/346-484840023107-1kworker/0:0H10:53:430
81710,0rcu_preempt3-21ksoftirqd/011:12:450
81710,0rcu_preempt3-21ksoftirqd/010:24:250
81700,0rcu_preempt3-21ksoftirqd/010:55:160
81690,0rcu_preempt3-21ksoftirqd/010:44:250
81690,0rcu_preempt19-21ksoftirqd/107:19:491
81680,0rcu_preempt3-21ksoftirqd/011:19:480
81680,0rcu_preempt3-21ksoftirqd/007:39:440
10050680,0irq/346-484840013492-1kworker/0:0H12:29:570
10050680,0irq/346-484840012787-1kworker/0:3H11:01:070
81670,0rcu_preempt3-21ksoftirqd/011:54:480
81670,0rcu_preempt3-21ksoftirqd/008:24:570
81670,0rcu_preempt3-21ksoftirqd/008:24:570
81660,0rcu_preempt3-21ksoftirqd/009:30:270
81640,0rcu_preempt19-21ksoftirqd/107:43:281
81630,0rcu_preempt6429-21kworker/0:210:02:090
81630,0rcu_preempt3-21ksoftirqd/010:24:460
81630,0rcu_preempt3-21ksoftirqd/009:19:360
81610,0rcu_preempt32682-21kworker/0:209:28:420
81610,0rcu_preempt3-21ksoftirqd/011:40:050
81610,0rcu_preempt25833-21kworker/0:009:48:390
81610,0rcu_preempt0-21swapper/009:15:090
81590,0rcu_preempt3-21ksoftirqd/012:24:470
81590,0rcu_preempt3-21ksoftirqd/011:34:510
81590,0rcu_preempt3-21ksoftirqd/010:09:480
81590,0rcu_preempt3-21ksoftirqd/007:49:570
81580,0rcu_preempt9369-21kworker/0:112:04:590
81580,0rcu_preempt3-21ksoftirqd/007:09:440
81580,0rcu_preempt28429-21ping08:14:340
81580,0rcu_preempt0-21swapper/012:16:350
81570,0rcu_preempt4840-21kworker/0:211:30:330
81570,0rcu_preempt3-21ksoftirqd/010:29:580
81570,0rcu_preempt19-21ksoftirqd/110:54:431
81560,0rcu_preempt7600-21kworker/0:109:51:440
81560,0rcu_preempt3-21ksoftirqd/008:00:030
81550,0rcu_preempt32682-21kworker/0:209:39:510
81550,0rcu_preempt32682-21kworker/0:209:39:510
81550,0rcu_preempt3-21ksoftirqd/012:34:430
81550,0rcu_preempt3-21ksoftirqd/011:28:310
81550,0rcu_preempt3-21ksoftirqd/010:14:510
81550,0rcu_preempt3-21ksoftirqd/009:55:010
81550,0rcu_preempt3-21ksoftirqd/007:55:010
10050550,0irq/346-4848400851-21rngd09:34:590
81540,0rcu_preempt7600-21kworker/0:108:44:560
81540,0rcu_preempt3-21ksoftirqd/008:54:460
81540,0rcu_preempt3-21ksoftirqd/008:54:460
81540,0rcu_preempt1080-21kworker/0:208:15:020
81540,0rcu_preempt0-21swapper/011:05:340
81530,0rcu_preempt3-21ksoftirqd/012:09:540
81530,0rcu_preempt3-21ksoftirqd/011:52:380
81530,0rcu_preempt3-21ksoftirqd/011:14:520
81530,0rcu_preempt3-21ksoftirqd/009:03:180
81520,0rcu_preempt9369-21kworker/0:111:47:400
81520,0rcu_preempt19-21ksoftirqd/110:09:451
81510,0rcu_preempt3-21ksoftirqd/008:49:530
81510,0rcu_preempt3-21ksoftirqd/008:34:570
81510,0rcu_preempt3-21ksoftirqd/008:29:530
81510,0rcu_preempt18350-21memory09:04:570
10050510,0irq/346-4848400851-21rngd10:38:210
10050510,0irq/346-484840029852-21fschecks_count09:19:501
81500,0rcu_preempt3-21ksoftirqd/008:24:030
81500,0rcu_preempt3-21ksoftirqd/007:04:440
81500,0rcu_preempt20726-21kworker/0:009:10:060
10050500,0irq/346-4848400662-1kworker/1:0H12:36:361
81490,0rcu_preempt54-21kswapd007:49:060
81490,0rcu_preempt3-21ksoftirqd/008:04:570
81490,0rcu_preempt3-21ksoftirqd/008:04:570
81490,0rcu_preempt19-21ksoftirqd/111:19:351
81490,0rcu_preempt13494-1kworker/1:3H12:19:441
81480,0rcu_preempt19-21ksoftirqd/110:34:491
81480,0rcu_preempt19-21ksoftirqd/107:29:341
81480,0rcu_preempt19-21ksoftirqd/107:29:341
10050480,0irq/346-484840017379-1kworker/1:3H09:40:291
10050480,0irq/346-484840017379-1kworker/1:3H09:40:291
9950470,0irq/345-48484000-21swapper/110:27:141
81470,0rcu_preempt14155-21df_inode07:14:490
81460,0rcu_preempt27932-1kworker/1:0H11:34:441
81460,0rcu_preempt19-21ksoftirqd/111:03:091
10050460,0irq/346-48484009999-21ssh09:32:011
10050460,0irq/346-48484003-21ksoftirqd/007:39:340
81450,0rcu_preempt54-21kswapd010:19:271
81450,0rcu_preempt19-21ksoftirqd/112:07:461
10050450,0irq/346-484840032204-1kworker/1:1H10:31:011
10050450,0irq/346-484840022881-1kworker/1:3H11:31:081
81440,0rcu_preempt3-21ksoftirqd/008:39:550
81440,0rcu_preempt19-21ksoftirqd/107:30:061
10050440,0irq/346-4848400851-21rngd10:40:121
10050440,0irq/346-484840026446-21df12:29:471
10050440,0irq/346-484840011167-21munin-node1
10050440,0irq/346-48484000-21swapper/108:39:371
81430,0rcu_preempt19-21ksoftirqd/111:04:441
10050430,0irq/346-484840022714-21if_err_eth109:44:511
10050430,0irq/346-484840012221-21ssh09:34:431
9950420,0irq/345-484840017860-21apt-get10:44:431
81420,0rcu_preempt3-21ksoftirqd/007:28:280
81420,0rcu_preempt3-21ksoftirqd/007:28:280
81420,0rcu_preempt3-21ksoftirqd/007:19:440
81420,0rcu_preempt26088-21zcat10:20:041
81420,0rcu_preempt19-21ksoftirqd/111:55:041
81420,0rcu_preempt19-21ksoftirqd/110:09:281
81420,0rcu_preempt19-21ksoftirqd/110:09:281
81420,0rcu_preempt19-21ksoftirqd/107:59:331
81420,0rcu_preempt18514-21apt-get11:49:471
81420,0rcu_preempt11236-21meminfo07:04:521
10050420,0irq/346-48484000-21swapper/109:10:551
81410,0rcu_preempt19-21ksoftirqd/111:29:331
9950400,0irq/345-48484000-21swapper/110:50:111
81400,0rcu_preempt19-21ksoftirqd/112:24:481
81400,0rcu_preempt19-21ksoftirqd/112:09:451
81400,0rcu_preempt19-21ksoftirqd/111:09:561
81400,0rcu_preempt19-21ksoftirqd/108:19:421
81400,0rcu_preempt19-21ksoftirqd/107:59:451
13250400,0irq/301-48020003-21ksoftirqd/007:29:480
10050400,0irq/346-48484005964-21ssh10:00:011
81390,0rcu_preempt19-21ksoftirqd/109:59:331
81390,0rcu_preempt19-21ksoftirqd/109:14:341
81390,0rcu_preempt19-21ksoftirqd/108:25:031
81390,0rcu_preempt19-21ksoftirqd/108:25:031
10050390,0irq/346-48484002741-21ssh09:24:531
10050390,0irq/346-484840014699-21ssh11:45:021
81380,0rcu_preempt19-21ksoftirqd/111:59:591
81380,0rcu_preempt19-21ksoftirqd/111:39:531
81380,0rcu_preempt19-21ksoftirqd/108:59:441
81380,0rcu_preempt12171-21cyclictest11:14:401
10050380,0irq/346-484840054-21kswapd008:04:531
10050380,0irq/346-484840054-21kswapd008:04:531
81360,0rcu_preempt19-21ksoftirqd/109:49:471
81360,0rcu_preempt19-21ksoftirqd/108:19:331
81360,0rcu_preempt19-21ksoftirqd/107:44:471
81350,0rcu_preempt19-21ksoftirqd/107:50:001
81350,0rcu_preempt19-21ksoftirqd/107:19:341
89842340,0sleep17457-1kworker/1:2H08:35:371
1217399348,0cyclictest10050irq/346-484840009:04:521
10050340,0irq/346-48484000-21swapper/108:57:521
10050340,0irq/346-48484000-21swapper/108:57:521
139412331,0sleep113942-21sshd08:50:431
10050330,0irq/346-484840019-21ksoftirqd/108:10:261
10050330,0irq/346-48484000-21swapper/107:10:471
10050310,0irq/346-48484000-21swapper/108:44:501
10050310,0irq/346-48484000-21swapper/108:30:321
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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