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2026-02-03 - 03:20
[ 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 Tue Feb 03, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81870,0rcu_preempt19-21ksoftirqd/121:48:121
81820,0rcu_preempt19-21ksoftirqd/119:19:501
81740,0rcu_preempt23425-21ssh23:57:151
81720,0rcu_preempt851-21rngd22:39:461
81720,0rcu_preempt851-21rngd00:35:211
81720,0rcu_preempt54-21kswapd022:37:191
81690,0rcu_preempt19-21ksoftirqd/100:22:461
81670,0rcu_preempt19-21ksoftirqd/122:02:281
81670,0rcu_preempt19-21ksoftirqd/121:39:561
81670,0rcu_preempt19-21ksoftirqd/121:30:311
81640,0rcu_preempt19-21ksoftirqd/122:28:231
81630,0rcu_preempt3-21ksoftirqd/022:25:210
81630,0rcu_preempt19-21ksoftirqd/123:08:381
81630,0rcu_preempt19-21ksoftirqd/123:08:381
81620,0rcu_preempt19-21ksoftirqd/121:56:111
81620,0rcu_preempt19-21ksoftirqd/121:27:121
81620,0rcu_preempt19-21ksoftirqd/121:27:121
81620,0rcu_preempt19-21ksoftirqd/100:14:431
81610,0rcu_preempt19-21ksoftirqd/123:39:021
81610,0rcu_preempt19-21ksoftirqd/122:05:281
81610,0rcu_preempt19-21ksoftirqd/100:34:181
81600,0rcu_preempt0-21swapper/121:54:381
10050590,0irq/346-4848400181ktimersoftd/121:21:271
81580,0rcu_preempt851-21rngd23:50:531
81570,0rcu_preempt3-21ksoftirqd/020:40:020
81570,0rcu_preempt28475-21kworker/0:020:08:570
81560,0rcu_preempt3-21ksoftirqd/021:39:250
81560,0rcu_preempt19-21ksoftirqd/120:29:551
81560,0rcu_preempt19-21ksoftirqd/120:29:551
81560,0rcu_preempt0-21swapper/122:54:351
81550,0rcu_preempt19-21ksoftirqd/123:12:151
81550,0rcu_preempt19-21ksoftirqd/121:34:501
81540,0rcu_preempt4784-21kworker/0:223:11:500
81540,0rcu_preempt3-21ksoftirqd/022:15:010
81540,0rcu_preempt30009-1kworker/0:3H23:34:220
81540,0rcu_preempt19-21ksoftirqd/122:57:351
10050540,0irq/346-48484001339-21snmpd23:18:100
81530,0rcu_preempt3-21ksoftirqd/019:50:000
81530,0rcu_preempt19-21ksoftirqd/121:09:491
81530,0rcu_preempt19-21ksoftirqd/120:24:571
81530,0rcu_preempt19-21ksoftirqd/120:00:091
81530,0rcu_preempt0-21swapper/123:03:571
9950520,0irq/345-48484000-21swapper/119:59:371
81520,0rcu_preempt3-21ksoftirqd/020:44:500
81520,0rcu_preempt3-21ksoftirqd/019:04:580
81520,0rcu_preempt31418-21kworker/0:220:15:080
81520,0rcu_preempt25325-1kworker/0:3H21:20:020
10050520,0irq/346-48484000-21swapper/023:51:530
9950510,0irq/345-4848400181ktimersoftd/122:11:271
9950510,0irq/345-4848400181ktimersoftd/121:15:041
81510,0rcu_preempt3-21ksoftirqd/021:28:360
81510,0rcu_preempt3-21ksoftirqd/021:28:360
81510,0rcu_preempt3-21ksoftirqd/019:14:490
10050510,0irq/346-484840017085-21ssh00:23:440
9950500,0irq/345-484840020399-21latency_hist19:39:390
81500,0rcu_preempt3-21ksoftirqd/023:54:480
81500,0rcu_preempt3-21ksoftirqd/023:49:290
81500,0rcu_preempt3-21ksoftirqd/023:39:590
81500,0rcu_preempt3-21ksoftirqd/023:04:060
81500,0rcu_preempt3-21ksoftirqd/022:34:540
81500,0rcu_preempt3-21ksoftirqd/020:35:030
81500,0rcu_preempt3-21ksoftirqd/020:31:480
81500,0rcu_preempt3-21ksoftirqd/020:31:480
81500,0rcu_preempt3-21ksoftirqd/020:25:400
10050500,0irq/346-48484000-21swapper/020:55:010
10050500,0irq/346-48484000-21swapper/020:55:010
9950490,0irq/345-484840013742-21ping19:39:500
81490,0rcu_preempt3-21ksoftirqd/023:23:250
81490,0rcu_preempt3-21ksoftirqd/022:45:000
81490,0rcu_preempt3-21ksoftirqd/022:23:430
81490,0rcu_preempt3-21ksoftirqd/021:09:590
81490,0rcu_preempt3-21ksoftirqd/000:37:370
81490,0rcu_preempt3-21ksoftirqd/000:00:280
81490,0rcu_preempt3201-21kworker/u4:023:24:531
81490,0rcu_preempt22406-21kworker/0:122:53:390
81490,0rcu_preempt19-21ksoftirqd/122:49:211
81490,0rcu_preempt19-21ksoftirqd/121:04:491
81490,0rcu_preempt19-21ksoftirqd/120:20:101
81490,0rcu_preempt10757-21df_inode22:39:540
10050490,0irq/346-48484005358-21ssh21:29:490
9950480,0irq/345-484840030008-1kworker/1:1H23:32:191
9950480,0irq/345-484840027609-1kworker/1:2H00:04:431
9950480,0irq/345-4848400181ktimersoftd/122:18:131
9950480,0irq/345-48484000-21swapper/123:39:521
81480,0rcu_preempt3-21ksoftirqd/022:32:110
81480,0rcu_preempt3-21ksoftirqd/020:14:370
81480,0rcu_preempt3-21ksoftirqd/000:29:510
81480,0rcu_preempt3-21ksoftirqd/000:14:590
10050480,0irq/346-48484003850-21ssh23:05:010
10050480,0irq/346-48484003850-21ssh23:05:010
81470,0rcu_preempt4784-21kworker/0:222:01:420
81470,0rcu_preempt3-21ksoftirqd/023:25:170
81470,0rcu_preempt3-21ksoftirqd/022:54:480
81470,0rcu_preempt3-21ksoftirqd/022:10:550
81470,0rcu_preempt3-21ksoftirqd/000:25:040
81470,0rcu_preempt3-21ksoftirqd/000:10:030
81470,0rcu_preempt19-21ksoftirqd/123:44:501
81470,0rcu_preempt19-21ksoftirqd/120:15:091
81470,0rcu_preempt19-21ksoftirqd/120:09:571
81470,0rcu_preempt19-21ksoftirqd/119:41:451
81470,0rcu_preempt19-21ksoftirqd/119:34:561
81470,0rcu_preempt19-21ksoftirqd/119:30:111
81470,0rcu_preempt12236-21kworker/0:022:09:180
81460,0rcu_preempt3-21ksoftirqd/021:18:170
81460,0rcu_preempt3-21ksoftirqd/020:50:030
81460,0rcu_preempt3-21ksoftirqd/020:19:580
81460,0rcu_preempt3-21ksoftirqd/019:59:500
81460,0rcu_preempt3-21ksoftirqd/019:55:010
81460,0rcu_preempt19-21ksoftirqd/119:24:581
81460,0rcu_preempt19-21ksoftirqd/100:24:511
81460,0rcu_preempt19-21ksoftirqd/100:09:591
81450,0rcu_preempt2741-21kworker/0:121:58:540
81450,0rcu_preempt19-21ksoftirqd/100:00:091
13250450,0irq/301-480200010792-21df_inode19:09:530
10050450,0irq/346-484840032619-1kworker/0:1H00:06:370
10050450,0irq/346-484840025263-21ssh21:49:420
81440,0rcu_preempt581-21taskset23:34:490
81440,0rcu_preempt3-21ksoftirqd/021:39:400
81440,0rcu_preempt19-21ksoftirqd/120:39:541
81440,0rcu_preempt19-21ksoftirqd/120:05:031
9950430,0irq/345-484840013742-21ping19:34:380
81430,0rcu_preempt3-21ksoftirqd/021:08:520
81430,0rcu_preempt19-21ksoftirqd/123:19:591
81430,0rcu_preempt19-21ksoftirqd/123:17:471
81430,0rcu_preempt19-21ksoftirqd/120:34:561
81430,0rcu_preempt19-21ksoftirqd/119:45:151
81430,0rcu_preempt19-21ksoftirqd/119:19:391
10050430,0irq/346-484840017135-1kworker/0:4H21:45:010
81420,0rcu_preempt9786-1kworker/1:2H22:19:511
81420,0rcu_preempt19-21ksoftirqd/122:29:581
81420,0rcu_preempt0-21swapper/119:49:471
1044999412,0cyclictest13742-21ping19:19:490
81400,0rcu_preempt3-21ksoftirqd/021:04:180
81390,0rcu_preempt3-21ksoftirqd/019:46:290
10050390,0irq/346-484840014278-21sendmail-msp20:59:391
81380,0rcu_preempt19-21ksoftirqd/120:52:221
81380,0rcu_preempt19-21ksoftirqd/120:44:381
81380,0rcu_preempt19-21ksoftirqd/119:08:141
10050370,0irq/346-484840016730-1kworker/0:0H19:29:370
81360,0rcu_preempt19-21ksoftirqd/119:12:091
81350,0rcu_preempt13935-21runrttasks20:56:191
81350,0rcu_preempt13935-21runrttasks20:56:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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