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2026-01-23 - 00:24
[ 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 Jan 22, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81980,0rcu_preempt3-21ksoftirqd/010:58:260
81750,0rcu_preempt3-21ksoftirqd/012:32:220
81750,0rcu_preempt19-21ksoftirqd/110:25:061
81740,0rcu_preempt19-21ksoftirqd/111:00:001
81730,0rcu_preempt3-21ksoftirqd/011:40:060
81720,0rcu_preempt3-21ksoftirqd/010:30:130
10050720,0irq/346-48484000-21swapper/011:01:550
81690,0rcu_preempt10530-21cyclictest10:20:070
81680,0rcu_preempt3-21ksoftirqd/012:21:440
81670,0rcu_preempt3-21ksoftirqd/011:54:390
81640,0rcu_preempt19-21ksoftirqd/112:27:401
81640,0rcu_preempt19-21ksoftirqd/112:27:401
81630,0rcu_preempt19-21ksoftirqd/111:22:121
81620,0rcu_preempt11413-1kworker/0:1H12:13:200
81610,0rcu_preempt10530-21cyclictest11:58:150
170682610,0chrt10050irq/346-484840007:29:300
81600,0rcu_preempt19-21ksoftirqd/108:10:061
81600,0rcu_preempt0-21swapper/111:13:481
81590,0rcu_preempt3-21ksoftirqd/008:50:050
81590,0rcu_preempt19-21ksoftirqd/108:05:071
81580,0rcu_preempt1350-21lldpd12:27:070
81580,0rcu_preempt1350-21lldpd12:27:070
81570,0rcu_preempt2560-21kworker/0:108:34:590
81560,0rcu_preempt3-21ksoftirqd/009:19:590
10050560,0irq/346-48484002374-1kworker/0:0H09:27:230
81550,0rcu_preempt748-21kworker/0:208:20:310
81550,0rcu_preempt19-21ksoftirqd/111:55:111
81550,0rcu_preempt19-21ksoftirqd/109:50:381
81550,0rcu_preempt0-21swapper/111:40:131
81540,0rcu_preempt3-21ksoftirqd/011:10:060
81540,0rcu_preempt19-21ksoftirqd/108:00:091
81540,0rcu_preempt10530-21cyclictest11:44:580
81530,0rcu_preempt54-21kswapd012:05:161
81530,0rcu_preempt3-21ksoftirqd/012:39:040
81530,0rcu_preempt3-21ksoftirqd/009:15:110
81530,0rcu_preempt3-21ksoftirqd/009:10:100
81530,0rcu_preempt3-21ksoftirqd/007:55:040
10050530,0irq/346-484840024694-21ssh09:57:450
81520,0rcu_preempt3-21ksoftirqd/011:35:160
10050520,0irq/346-484840019839-21ssh09:52:460
10050520,0irq/346-48484000-21swapper/011:18:380
81510,0rcu_preempt3-21ksoftirqd/010:09:480
81510,0rcu_preempt3-21ksoftirqd/010:03:470
81510,0rcu_preempt3-21ksoftirqd/009:30:120
81510,0rcu_preempt3-21ksoftirqd/008:25:040
81510,0rcu_preempt3-21ksoftirqd/008:00:410
81510,0rcu_preempt19-21ksoftirqd/107:39:551
10050510,0irq/346-4848400851-21rngd08:39:540
10050510,0irq/346-4848400851-21rngd08:39:540
81500,0rcu_preempt3-21ksoftirqd/012:01:190
81500,0rcu_preempt3-21ksoftirqd/010:54:270
81500,0rcu_preempt3-21ksoftirqd/010:47:420
81500,0rcu_preempt3-21ksoftirqd/010:10:040
81500,0rcu_preempt3-21ksoftirqd/009:37:380
81500,0rcu_preempt3-21ksoftirqd/008:55:050
81500,0rcu_preempt3-21ksoftirqd/008:30:110
81500,0rcu_preempt3-21ksoftirqd/007:05:030
10050500,0irq/346-484840054-21kswapd010:18:250
10050500,0irq/346-484840017888-1kworker/0:1H11:20:210
10050500,0irq/346-484840012293-1kworker/0:3H10:25:050
10050500,0irq/346-48484000-21swapper/011:07:360
81490,0rcu_preempt851-21rngd12:10:351
81490,0rcu_preempt3-21ksoftirqd/010:41:200
81490,0rcu_preempt3-21ksoftirqd/008:05:070
81490,0rcu_preempt3-21ksoftirqd/007:10:100
81490,0rcu_preempt30077-21kworker/0:108:13:320
10050490,0irq/346-48484000-21swapper/011:31:010
81480,0rcu_preempt19-21ksoftirqd/110:15:051
81480,0rcu_preempt19-21ksoftirqd/109:24:521
81480,0rcu_preempt19-21ksoftirqd/108:20:071
81480,0rcu_preempt12512-21df_inode07:15:030
202972480,0chrt10050irq/346-484840007:39:020
202972480,0chrt10050irq/346-484840007:39:020
10050480,0irq/346-48484003-21ksoftirqd/011:25:470
81470,0rcu_preempt3-21ksoftirqd/012:15:110
81470,0rcu_preempt3-21ksoftirqd/012:05:080
81470,0rcu_preempt3-21ksoftirqd/009:00:080
81470,0rcu_preempt19-21ksoftirqd/111:54:201
10050470,0irq/346-48484003-21ksoftirqd/007:19:520
81460,0rcu_preempt3-21ksoftirqd/009:05:130
81460,0rcu_preempt3-21ksoftirqd/008:14:560
81460,0rcu_preempt26988-21apt-get10:34:580
81460,0rcu_preempt19-21ksoftirqd/108:59:591
10050460,0irq/346-484840016170-21ssh09:49:220
81450,0rcu_preempt3-21ksoftirqd/008:45:030
81450,0rcu_preempt3-21ksoftirqd/007:29:580
81450,0rcu_preempt29355-21ssh09:20:471
81450,0rcu_preempt19-21ksoftirqd/111:05:521
81450,0rcu_preempt19-21ksoftirqd/110:20:161
81450,0rcu_preempt19-21ksoftirqd/109:54:581
81450,0rcu_preempt19-21ksoftirqd/107:25:091
81450,0rcu_preempt10530-21cyclictest08:25:011
81440,0rcu_preempt9795-1kworker/1:1H11:37:081
81440,0rcu_preempt19-21ksoftirqd/112:15:111
81440,0rcu_preempt19-21ksoftirqd/111:16:421
81440,0rcu_preempt19-21ksoftirqd/110:56:571
81440,0rcu_preempt19-21ksoftirqd/110:34:591
81440,0rcu_preempt19-21ksoftirqd/108:15:231
81430,0rcu_preempt19-21ksoftirqd/112:30:141
81430,0rcu_preempt19-21ksoftirqd/111:34:101
81430,0rcu_preempt19-21ksoftirqd/109:35:091
81430,0rcu_preempt19-21ksoftirqd/109:12:181
221862437,0sleep03-21ksoftirqd/007:44:580
81420,0rcu_preempt19-21ksoftirqd/111:49:251
81420,0rcu_preempt19-21ksoftirqd/110:00:121
81410,0rcu_preempt3-21ksoftirqd/009:42:460
81410,0rcu_preempt24039-21diskstats07:50:040
81410,0rcu_preempt19-21ksoftirqd/110:30:021
81410,0rcu_preempt19-21ksoftirqd/109:17:251
81410,0rcu_preempt19-21ksoftirqd/108:34:261
81410,0rcu_preempt19-21ksoftirqd/107:50:181
81410,0rcu_preempt19-21ksoftirqd/107:46:521
81410,0rcu_preempt17615-21diskmemload12:00:171
81410,0rcu_preempt13819-21ping07:43:380
4350410,0irq/32-433000009201-21ssh07:05:011
81400,0rcu_preempt19-21ksoftirqd/112:34:581
81400,0rcu_preempt19-21ksoftirqd/111:28:531
81400,0rcu_preempt19-21ksoftirqd/110:51:001
81400,0rcu_preempt19-21ksoftirqd/110:43:251
81400,0rcu_preempt19-21ksoftirqd/110:10:001
81400,0rcu_preempt19-21ksoftirqd/110:05:101
81400,0rcu_preempt19-21ksoftirqd/109:42:291
81400,0rcu_preempt19-21ksoftirqd/108:55:101
81400,0rcu_preempt19-21ksoftirqd/108:47:341
81400,0rcu_preempt19-21ksoftirqd/108:36:121
81400,0rcu_preempt19-21ksoftirqd/107:59:491
81400,0rcu_preempt19-21ksoftirqd/107:29:501
81390,0rcu_preempt19-21ksoftirqd/112:20:001
81390,0rcu_preempt19-21ksoftirqd/109:07:541
81390,0rcu_preempt19-21ksoftirqd/107:35:211
81390,0rcu_preempt19-21ksoftirqd/107:35:211
81390,0rcu_preempt12315-21apt-get07:14:591
81390,0rcu_preempt11441-21ps07:10:121
81380,0rcu_preempt19-21ksoftirqd/109:31:381
81380,0rcu_preempt19-21ksoftirqd/108:42:301
81380,0rcu_preempt19-21ksoftirqd/108:42:301
81370,0rcu_preempt19-21ksoftirqd/109:48:481
81370,0rcu_preempt19-21ksoftirqd/108:50:401
81360,0rcu_preempt19-21ksoftirqd/110:47:511
9950350,0irq/345-484840013934-21date07:19:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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