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2026-01-30 - 04:41
[ 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 #7, slot #7

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 100 highest latencies:
System rack7slot7s.osadl.org (updated Fri Jan 30, 2026 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3098029279,9sleep00-21swapper/019:05:570
3104428471,9sleep20-21swapper/219:06:472
3115228265,13sleep10-21swapper/119:08:111
3115427764,9sleep30-21swapper/319:08:133
31383993027,2cyclictest32-21ksoftirqd/223:43:522
3138399280,28cyclictest24018-21diskmemload23:20:432
3138199282,25cyclictest24018-21diskmemload23:39:271
51782250,0sleep10-21swapper/119:20:211
3138199240,23cyclictest0-21swapper/123:44:121
3137699240,24cyclictest0-21swapper/023:32:210
31386992323,0cyclictest0-21swapper/321:52:593
31386992322,0cyclictest0-21swapper/323:39:253
3138199230,23cyclictest0-21swapper/121:35:561
3138199230,1cyclictest0-21swapper/123:07:591
31376992319,1cyclictest13-21ksoftirqd/023:36:040
31386992219,3cyclictest18182-21kworker/3:021:42:533
3138699221,17cyclictest13151-21apache_accesses22:20:113
3138699220,21cyclictest0-21swapper/321:22:373
31381992221,1cyclictest0-21swapper/120:01:111
3138199220,1cyclictest0-21swapper/123:55:171
31383992119,1cyclictest16859-21cron20:54:592
3137699210,0cyclictest0-21swapper/021:42:030
3138699205,12cyclictest0-21swapper/300:25:133
31386992017,2cyclictest0-21swapper/323:17:133
31386992016,3cyclictest18182-21kworker/3:021:38:533
3138399205,11cyclictest225-21systemd-journal22:44:592
3138199200,1cyclictest0-21swapper/121:52:111
31376992020,0cyclictest0-21swapper/000:21:170
31376992019,1cyclictest0-21swapper/000:38:290
31376992019,1cyclictest0-21swapper/000:38:280
31376992018,1cyclictest13-21ksoftirqd/022:49:410
31376992017,2cyclictest0-21swapper/022:44:250
207722200,0sleep30-21swapper/300:38:383
207722200,0sleep30-21swapper/300:38:383
3138399190,16cyclictest0-21swapper/222:05:142
3138399190,16cyclictest0-21swapper/220:40:122
31381991918,1cyclictest0-21swapper/100:05:261
31381991916,3cyclictest221irq_work/121:16:111
3138199190,18cyclictest0-21swapper/123:51:411
31376991918,1cyclictest13-21ksoftirqd/021:32:130
3137699190,2cyclictest0-21swapper/023:58:060
3138699185,1cyclictest141rcu_preempt22:34:543
31386991817,1cyclictest0-21swapper/320:20:133
3138399182,1cyclictest141rcu_preempt21:59:172
3138399180,14cyclictest0-21swapper/221:05:152
31381991816,2cyclictest0-21swapper/122:58:471
3138199180,1cyclictest0-21swapper/119:15:141
3138199180,1cyclictest0-21swapper/100:00:331
31376991816,2cyclictest13-21ksoftirqd/022:20:130
31376991813,5cyclictest13-21ksoftirqd/021:26:180
3137699180,2cyclictest0-21swapper/022:27:340
31386991716,1cyclictest24018-21diskmemload22:54:073
31383991717,0cyclictest0-21swapper/219:20:142
31383991716,1cyclictest0-21swapper/221:42:442
3138399170,16cyclictest0-21swapper/223:45:102
31381991715,1cyclictest15759-21/usr/sbin/munin00:35:191
31381991715,1cyclictest15759-21/usr/sbin/munin00:35:191
3137699173,8cyclictest13-21ksoftirqd/023:12:340
3137699173,3cyclictest27119-21ssh21:50:120
3137699172,4cyclictest141rcu_preempt22:35:460
3137699170,2cyclictest0-21swapper/021:12:050
3137699170,1cyclictest0-21swapper/023:54:520
31386991612,3cyclictest3214-21seq00:09:143
3138699160,2cyclictest0-21swapper/322:13:063
3138699160,16cyclictest0-21swapper/323:24:453
3138399165,4cyclictest452-21systemd-logind00:05:052
31383991614,1cyclictest0-21swapper/223:08:192
31383991612,2cyclictest23411-21ls00:20:272
3138199167,6cyclictest38150irq/131-snd_hda21:40:091
3138199163,8cyclictest0-21swapper/123:15:151
3137699164,6cyclictest13-21ksoftirqd/023:20:220
31376991616,0cyclictest0-21swapper/000:11:540
31376991614,2cyclictest0-21swapper/021:17:330
31376991613,2cyclictest161rcuc/020:05:130
3137699161,1cyclictest141rcu_preempt22:50:520
3137699161,1cyclictest141rcu_preempt00:34:540
3138699159,5cyclictest7320-21sh23:52:033
31386991513,1cyclictest0-21swapper/323:57:513
3138699150,4cyclictest0-21swapper/323:46:033
3138699150,1cyclictest0-21swapper/300:15:343
3138399153,8cyclictest0-21swapper/221:28:202
3138399152,12cyclictest15212-21df_abs00:35:152
3138399152,12cyclictest15212-21df_abs00:35:152
31383991511,3cyclictest31283-21cut00:25:202
3138399150,1cyclictest0-21swapper/220:05:152
3138399150,14cyclictest0-21swapper/220:30:142
31381991514,1cyclictest25-21ksoftirqd/100:24:041
31381991514,1cyclictest0-21swapper/100:12:231
3138199150,1cyclictest141rcu_preempt22:32:321
3138199150,14cyclictest24018-21diskmemload00:31:271
3137699159,3cyclictest13-21ksoftirqd/023:40:210
3137699158,4cyclictest13-21ksoftirqd/021:45:120
31376991514,1cyclictest13-21ksoftirqd/000:18:230
3137699151,1cyclictest141rcu_preempt22:10:430
31376991511,3cyclictest13-21ksoftirqd/022:03:270
3138699148,5cyclictest7016-21cut00:30:173
3138699140,2cyclictest0-21swapper/321:10:513
3138699140,12cyclictest9501-21head19:30:173
3138399142,1cyclictest0-21swapper/220:45:142
31383991410,3cyclictest7623-21cut00:30:222
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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