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2026-02-15 - 00:06
[ 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 #9, slot #4

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 here to display the system's profile data or here to proceed to next system.
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.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rack9slot4s (updated Sat Feb 14, 2026 12:59:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138279911901181,6cyclictest0-21swapper/007:25:300
138289911721154,15cyclictest0-21swapper/107:25:181
128492804758,29sleep10-21swapper/107:20:231
133992563518,30sleep00-21swapper/007:21:040
298072970,8sleep01382799cyclictest09:17:270
276722840,8sleep01382799cyclictest12:35:280
206252490,8sleep11382899cyclictest11:55:151
326552481,29sleep132764-21nfs4_client09:20:231
317712450,2sleep031772-21aten_r4power_vo11:00:100
1382899403,4cyclictest30832-21ntp_states12:05:251
319482390,7sleep11382899cyclictest11:00:121
302402391,32sleep030401-21cstates10:25:120
184592391,8sleep00-21swapper/009:39:490
1382899399,4cyclictest81rcu_preempt09:50:121
1382899391,16cyclictest19207-21diskstats09:40:131
325322382,4sleep081rcu_preempt09:54:090
1382899383,31cyclictest27139-21diskstats10:55:161
13828993823,4cyclictest22-21ksoftirqd/110:26:051
1382899381,33cyclictest11260-21grep10:05:151
13828993720,14cyclictest21665-21/usr/sbin/munin12:30:281
13828993716,8cyclictest22-21ksoftirqd/109:56:241
13827993715,19cyclictest3-21ksoftirqd/010:45:200
8182361,5sleep1830-21ssh12:41:151
1382899369,11cyclictest28799-21cut11:30:171
1382899363,5cyclictest0-21swapper/112:00:361
13828993626,6cyclictest20740-21ssh10:48:371
1382899362,5cyclictest3302-21runrttasks11:07:551
13828993613,5cyclictest22-21ksoftirqd/112:52:041
1382799363,29cyclictest0-21swapper/010:50:550
1382799361,13cyclictest15481-21ssh10:10:000
13827993610,14cyclictest25950-21ssh12:34:380
1382899355,4cyclictest81rcu_preempt10:50:011
1382899352,29cyclictest0-21swapper/112:27:551
1382899352,29cyclictest0-21swapper/109:29:161
1382899352,29cyclictest0-21swapper/109:29:151
1382899351,4cyclictest15687-21seq10:43:181
13828993512,9cyclictest22-21ksoftirqd/108:15:211
1382799357,24cyclictest0-21swapper/012:18:550
1382799351,5cyclictest81rcu_preempt08:00:310
1382799351,5cyclictest27256-21ssh12:01:360
66392341,4sleep16653-21ntp_states11:40:251
25352341,29sleep12559-21aten_r4power_cu10:30:101
154322341,29sleep015512-21sensors_temp08:50:270
1382899344,9cyclictest81rcu_preempt10:14:401
1382899344,7cyclictest28230-21ssh12:35:561
1382899344,4cyclictest81rcu_preempt10:20:461
13828993427,4cyclictest21877-21diskmemload09:36:351
1382899341,5cyclictest20197-21ssh11:20:361
1382899341,30cyclictest0-21swapper/107:32:561
1382799349,14cyclictest0-21swapper/012:22:160
1382799345,4cyclictest81rcu_preempt11:20:100
1382799343,18cyclictest0-21swapper/009:45:270
1382799343,16cyclictest10144-21ntp_states09:30:250
321632330,3sleep032177-21ssh12:06:440
173282331,5sleep00-21swapper/011:51:150
1382899334,4cyclictest81rcu_preempt12:24:051
1382899331,4cyclictest27849-21/usr/sbin/munin08:00:161
1382899331,30cyclictest0-21swapper/108:36:561
1382799334,4cyclictest81rcu_preempt12:53:100
13827993326,4cyclictest7674-21ssh10:00:560
13827993326,4cyclictest7674-21ssh10:00:560
1382799332,5cyclictest0-21swapper/008:30:360
1382799332,4cyclictest0-21swapper/009:55:350
1382799332,28cyclictest0-21swapper/011:48:560
1382799331,5cyclictest2403-21irqbalance11:35:350
1382799331,4cyclictest81rcu_preempt07:31:090
1382799331,4cyclictest3094-21ssh09:23:350
1382799331,30cyclictest0-21swapper/008:43:560
1382799331,28cyclictest2403-21irqbalance11:28:550
305012321,3sleep030510-21iostat_ios08:05:190
1382899324,25cyclictest0-21swapper/110:02:381
1382899324,25cyclictest0-21swapper/110:02:371
13828993219,10cyclictest22-21ksoftirqd/108:05:281
1382899321,5cyclictest1968-21lldpad12:17:331
1382899321,4cyclictest81rcu_preempt11:35:281
1382899321,4cyclictest81rcu_preempt10:15:431
13828993214,15cyclictest22-21ksoftirqd/112:12:301
1382899321,27cyclictest18374-21ssh11:19:591
1382799325,5cyclictest81rcu_preempt11:40:240
1382799323,17cyclictest0-21swapper/010:18:150
13827993225,5cyclictest0-21swapper/012:46:550
13827993224,4cyclictest0-21swapper/011:11:360
1382799322,14cyclictest20742-21iostat09:05:190
1382799321,29cyclictest0-21swapper/012:28:550
13827993210,18cyclictest0-21swapper/011:15:180
1382899319,18cyclictest0-21swapper/111:47:151
1382899317,13cyclictest0-21swapper/109:32:331
1382899313,25cyclictest30844-21ssh09:18:591
1382899311,4cyclictest81rcu_preempt09:45:201
1382899311,26cyclictest111-21usb-storage07:50:161
1382799318,5cyclictest24847-21ssh09:12:190
1382799318,19cyclictest20602-21df07:40:120
1382799317,4cyclictest81rcu_preempt09:40:230
1382799314,4cyclictest81rcu_preempt12:14:290
1382799313,4cyclictest81rcu_preempt11:06:590
1382799313,25cyclictest0-21swapper/012:40:160
13827993123,5cyclictest0-21swapper/011:57:350
13827993122,6cyclictest0-21swapper/007:54:350
1382799311,5cyclictest0-21swapper/010:34:150
1382799311,20cyclictest0-21swapper/007:38:140
1382799311,18cyclictest16882-21http_loadtime08:55:170
1382799311,17cyclictest8499-21ssh10:35:280
89462301,5sleep10-21swapper/110:35:331
45512301,5sleep00-21swapper/008:21:020
1382899306,4cyclictest81rcu_preempt11:25:251
1382899303,7cyclictest0-21swapper/112:45:021
1382899301,4cyclictest81rcu_preempt09:06:471
13827993021,5cyclictest17911-21ssh10:11:430
1382799301,27cyclictest0-21swapper/009:25:350
1382799301,27cyclictest0-21swapper/009:25:350
1382799300,4cyclictest81rcu_preempt07:46:500
274972291,5sleep00-21swapper/007:58:200
143282291,5sleep00-21swapper/008:50:000
1382899298,6cyclictest0-21swapper/107:38:351
1382899294,9cyclictest14798-21diskstats08:50:161
1382899294,4cyclictest81rcu_preempt11:50:051
1382899294,13cyclictest81rcu_preempt08:40:261
13828992921,6cyclictest0-21swapper/108:49:161
1382899291,5cyclictest0-21swapper/107:44:551
1382899291,26cyclictest0-21swapper/111:12:361
1382899291,16cyclictest24351-21ssh09:11:361
1382799292,13cyclictest2504-21users08:15:300
1382799291,4cyclictest81rcu_preempt10:21:160
1382799291,4cyclictest0-21swapper/010:42:300
1382799291,25cyclictest111-21usb-storage09:00:550
1382899284,5cyclictest40550irq/92-i91508:20:311
1382899283,4cyclictest81rcu_preempt08:13:521
1382899281,4cyclictest81rcu_preempt07:46:431
1382899281,25cyclictest0-21swapper/108:55:361
1382799282,13cyclictest27501-21iostat_ios10:55:210
1382799281,9cyclictest0-21swapper/011:30:180
1382899274,18cyclictest26551-21iostat_ios07:55:221
13828992720,4cyclictest5943-21open_files08:25:251
1382799271,13cyclictest5099-21/usr/sbin/munin08:25:210
1382899265,4cyclictest81rcu_preempt09:00:211
1382799268,5cyclictest8952-21aten_r4power_vo08:35:130
1382899253,14cyclictest0-21swapper/108:31:381
1382799251,12cyclictest32362-21if_eth008:10:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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