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2026-03-05 - 20:02
[ 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 Thu Mar 05, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81930,0rcu_preempt31098-21kworker/0:210:09:120
81880,0rcu_preempt3-21ksoftirqd/009:24:210
81830,0rcu_preempt3-21ksoftirqd/010:54:190
81820,0rcu_preempt3-21ksoftirqd/012:37:090
81810,0rcu_preempt3-21ksoftirqd/012:20:430
81790,0rcu_preempt5598-21dropbear08:39:230
81790,0rcu_preempt31251-21apt-get08:19:190
81760,0rcu_preempt3-21ksoftirqd/011:59:200
81760,0rcu_preempt13205-21apt-get07:24:210
81750,0rcu_preempt3-21ksoftirqd/011:39:190
81750,0rcu_preempt3-21ksoftirqd/011:39:190
10050700,0irq/346-484840017418-1kworker/0:2H10:21:110
81690,0rcu_preempt3-21ksoftirqd/011:06:120
81670,0rcu_preempt0-21swapper/111:31:311
81660,0rcu_preempt54-21kswapd009:31:420
81660,0rcu_preempt27023-1kworker/0:2H11:34:090
81650,0rcu_preempt54-21kswapd010:43:110
10050640,0irq/346-484840019540-21munin-node1
81620,0rcu_preempt3-21ksoftirqd/009:57:260
81620,0rcu_preempt15117-21diskmemload11:58:360
10050620,0irq/346-484840019889-21munin-node1
81610,0rcu_preempt4017-21php-cgi08:34:260
81610,0rcu_preempt19-21ksoftirqd/112:27:191
10050610,0irq/346-48484003376-21ssh11:39:571
10050610,0irq/346-48484003376-21ssh11:39:571
10050610,0irq/346-484840016939-21ssh10:15:371
81600,0rcu_preempt3-21ksoftirqd/011:19:320
81600,0rcu_preempt3-21ksoftirqd/010:17:280
81590,0rcu_preempt3-21ksoftirqd/010:02:160
81590,0rcu_preempt3-21ksoftirqd/009:37:030
81580,0rcu_preempt19-21ksoftirqd/108:16:511
10050580,0irq/346-48484008118-21cyclictest09:12:541
81570,0rcu_preempt3-21ksoftirqd/012:27:400
81570,0rcu_preempt3-21ksoftirqd/009:12:220
81560,0rcu_preempt3-21ksoftirqd/011:46:040
81560,0rcu_preempt3-21ksoftirqd/011:01:030
81560,0rcu_preempt3-21ksoftirqd/010:49:400
9950550,0irq/345-484840027313-1kworker/1:3H10:27:181
81550,0rcu_preempt967-1kworker/0:1H12:15:330
81550,0rcu_preempt3-21ksoftirqd/012:31:470
81550,0rcu_preempt3-21ksoftirqd/012:31:470
10050550,0irq/346-4848400181ktimersoftd/110:37:491
10050540,0irq/346-484840028738-21ssh11:00:101
81530,0rcu_preempt0-21swapper/111:54:251
10050530,0irq/346-484840022161-21sh10:54:201
10050530,0irq/346-484840015092-1kworker/0:3H09:42:520
9950520,0irq/345-484840023568-1kworker/1:0H12:04:421
81520,0rcu_preempt3-21ksoftirqd/009:04:200
81520,0rcu_preempt3-21ksoftirqd/008:44:200
81520,0rcu_preempt19-21ksoftirqd/107:19:371
81520,0rcu_preempt19-21ksoftirqd/107:19:371
81510,0rcu_preempt3-21ksoftirqd/010:49:090
81510,0rcu_preempt10434-21kworker/1:010:32:281
10050510,0irq/346-48484009796-1kworker/1:1H10:44:431
10050510,0irq/346-48484007474-1kworker/0:0H10:08:450
10050510,0irq/346-484840030170-21grep11:34:361
10050510,0irq/346-484840027614-1kworker/0:3H09:23:160
9950500,0irq/345-484840015090-1kworker/1:0H09:41:541
81500,0rcu_preempt19-21ksoftirqd/109:56:171
81500,0rcu_preempt19-21ksoftirqd/109:14:271
81500,0rcu_preempt19-21ksoftirqd/107:04:251
13250500,0irq/301-480200054-21kswapd007:54:220
10050500,0irq/346-4848400967-1kworker/0:1H12:13:420
10050500,0irq/346-4848400851-21rngd11:11:280
10050500,0irq/346-4848400851-21rngd10:33:470
10050500,0irq/346-484840054-21kswapd011:47:441
10050500,0irq/346-48484001681-21ssh12:11:281
9950490,0irq/345-48484005954-1kworker/1:1H12:19:271
9950490,0irq/345-484840032562-1kworker/1:2H09:29:301
9950490,0irq/345-484840023568-1kworker/1:0H12:03:481
9950490,0irq/345-484840020060-1kworker/1:2H09:50:021
9950490,0irq/345-484840012130-1kworker/1:2H11:19:311
9950490,0irq/345-484840012130-1kworker/1:2H11:18:501
9950490,0irq/345-48484000-21swapper/111:04:301
81490,0rcu_preempt3-21ksoftirqd/011:38:320
81490,0rcu_preempt3-21ksoftirqd/010:34:360
81490,0rcu_preempt3-21ksoftirqd/007:04:260
81490,0rcu_preempt19-21ksoftirqd/108:04:371
81490,0rcu_preempt19-21ksoftirqd/108:04:371
9950480,0irq/345-48484009533-1kworker/1:2H11:49:491
9950480,0irq/345-48484007475-1kworker/1:1H10:08:421
9950480,0irq/345-484840022675-1kworker/1:1H09:34:511
81480,0rcu_preempt3-21ksoftirqd/011:49:280
81480,0rcu_preempt3-21ksoftirqd/007:49:210
81480,0rcu_preempt2303-21df_abs08:29:230
81480,0rcu_preempt19-21ksoftirqd/110:39:181
81480,0rcu_preempt19-21ksoftirqd/108:09:261
10050480,0irq/346-484840025480-21sh09:19:231
9950470,0irq/345-484840024007-1kworker/1:1H12:35:001
9950470,0irq/345-48484000-21swapper/009:44:330
81470,0rcu_preempt3-21ksoftirqd/010:25:130
81470,0rcu_preempt3-21ksoftirqd/008:49:330
81470,0rcu_preempt3-21ksoftirqd/008:02:470
81470,0rcu_preempt19-21ksoftirqd/110:03:341
81470,0rcu_preempt19-21ksoftirqd/108:26:281
81470,0rcu_preempt19-21ksoftirqd/107:39:421
10050470,0irq/346-484840020430-21ssh09:14:230
10050470,0irq/346-484840011519-1kworker/1:2H08:56:031
9950460,0irq/345-484840014756-1kworker/1:0H10:52:311
9950460,0irq/345-48484000-21swapper/112:16:171
81460,0rcu_preempt3-21ksoftirqd/011:24:330
81460,0rcu_preempt3-21ksoftirqd/008:18:220
81460,0rcu_preempt3-21ksoftirqd/007:09:310
81460,0rcu_preempt19-21ksoftirqd/108:19:351
81460,0rcu_preempt19-21ksoftirqd/107:37:251
81460,0rcu_preempt19-21ksoftirqd/107:30:051
81460,0rcu_preempt19-21ksoftirqd/107:30:051
81460,0rcu_preempt11404-21ping07:34:200
10050460,0irq/346-484840013895-21ssh11:18:460
9950450,0irq/345-48484000-21swapper/110:10:411
81450,0rcu_preempt3-21ksoftirqd/009:49:220
81450,0rcu_preempt3-21ksoftirqd/008:07:280
81450,0rcu_preempt3-21ksoftirqd/008:07:280
81450,0rcu_preempt19-21ksoftirqd/108:49:191
81450,0rcu_preempt19-21ksoftirqd/107:14:191
10050450,0irq/346-48484000-21swapper/109:26:421
81440,0rcu_preempt9304-21latency_hist11:14:081
81440,0rcu_preempt19-21ksoftirqd/108:59:291
81440,0rcu_preempt19-21ksoftirqd/108:00:381
81440,0rcu_preempt19-21ksoftirqd/107:59:091
811999442,0cyclictest28195-21fschecks_count08:09:260
10050440,0irq/346-484840010422-21munin-node0
81430,0rcu_preempt3-21ksoftirqd/012:04:200
81430,0rcu_preempt3-21ksoftirqd/007:49:090
81420,0rcu_preempt3-21ksoftirqd/007:14:340
81420,0rcu_preempt19-21ksoftirqd/112:30:371
81420,0rcu_preempt19-21ksoftirqd/112:30:371
10050420,0irq/346-4848400424-21apt-get08:24:200
10050420,0irq/346-484840011404-21ping07:44:301
81410,0rcu_preempt19-21ksoftirqd/109:45:191
81410,0rcu_preempt19-21ksoftirqd/107:29:091
81410,0rcu_preempt1470-21runrttasks07:51:271
81400,0rcu_preempt3-21ksoftirqd/007:39:420
81400,0rcu_preempt19-21ksoftirqd/107:11:131
10050400,0irq/346-484840011518-1kworker/0:1H08:59:300
81390,0rcu_preempt19-21ksoftirqd/109:04:541
81390,0rcu_preempt19-21ksoftirqd/108:34:311
81390,0rcu_preempt15390-21taskset07:29:350
81390,0rcu_preempt15390-21taskset07:29:350
81380,0rcu_preempt19-21ksoftirqd/108:44:121
81370,0rcu_preempt3-21ksoftirqd/007:19:100
81370,0rcu_preempt3-21ksoftirqd/007:19:100
81370,0rcu_preempt19-21ksoftirqd/108:39:251
81370,0rcu_preempt19-21ksoftirqd/108:30:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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