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2026-02-07 - 22:29
[ 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 highest latencies:
System rack9slot4s (updated Sat Feb 07, 2026 12:59:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
312769912581217,28cyclictest0-21swapper/007:25:120
312779911271119,5cyclictest0-21swapper/107:25:131
312779910951068,21cyclictest10392-21python07:50:281
312779910951068,21cyclictest10392-21python07:50:281
308652581537,30sleep10-21swapper/107:21:141
310992458417,26sleep00-21swapper/007:23:440
3127699230206,21cyclictest0-21swapper/007:50:290
3127699230206,21cyclictest0-21swapper/007:50:280
2518421230,8sleep03127699cyclictest09:28:130
154112960,5sleep115409-21ssh11:30:311
258532940,8sleep03127699cyclictest11:08:550
126022840,4sleep00-21swapper/010:55:110
92862820,5sleep19287-21latency_hist07:50:001
132592710,3sleep041ktimersoftd/010:22:110
3127699625,29cyclictest0-21swapper/012:09:550
3127699606,4cyclictest81rcu_preempt10:25:510
3127699602,17cyclictest2206-21dbus-daemon08:09:080
118682600,2sleep10-21swapper/110:20:291
3127699579,14cyclictest6928-21mailstats10:15:280
61202530,24sleep122-21ksoftirqd/107:40:211
3127699522,15cyclictest24677-21mailstats10:00:300
219292450,7sleep13127799cyclictest11:05:021
18702430,6sleep11699-21kworker/1:111:17:081
34012400,8sleep10-21swapper/111:51:501
3127799402,17cyclictest0-21swapper/112:47:241
3127699391,34cyclictest0-21swapper/010:36:360
205192390,7sleep13127799cyclictest08:20:001
3127799386,4cyclictest81rcu_preempt12:50:221
31277993828,7cyclictest0-21swapper/109:58:561
31277993810,4cyclictest81rcu_preempt09:52:171
168272381,33sleep116837-21ssh10:59:561
3127799376,5cyclictest81rcu_preempt09:35:201
31277993720,4cyclictest22-21ksoftirqd/112:15:191
3127699371,3cyclictest81rcu_preempt12:51:040
3127799366,4cyclictest81rcu_preempt10:00:361
3127799364,10cyclictest81rcu_preempt10:50:261
3127799363,6cyclictest0-21swapper/110:06:551
3127799362,4cyclictest81rcu_preempt12:20:261
3127799362,30cyclictest5557-21df_inode09:05:161
3127699363,29cyclictest0-21swapper/012:35:160
3127699362,21cyclictest2796-21/usr/sbin/munin12:25:130
3127699362,21cyclictest2796-21/usr/sbin/munin12:25:130
31276993615,6cyclictest0-21swapper/009:11:300
31276993615,6cyclictest0-21swapper/009:11:300
31276993613,5cyclictest723-21users11:15:300
31276993610,13cyclictest6983-21diskmemload11:57:270
3127799355,5cyclictest81rcu_preempt09:45:021
3127799352,5cyclictest0-21swapper/111:42:151
31277993523,8cyclictest8023-21hddtemp_smartct12:30:171
3127799352,29cyclictest2309-21cron10:15:001
31277993518,5cyclictest28015-21cron08:40:001
3127699356,5cyclictest81rcu_preempt11:28:550
3127699353,29cyclictest0-21swapper/011:35:140
3127699351,7cyclictest4376-21ssh10:13:240
3127799349,13cyclictest22-21ksoftirqd/110:19:571
3127799345,4cyclictest81rcu_preempt11:00:221
3127799344,4cyclictest81rcu_preempt11:39:441
3127799344,4cyclictest81rcu_preempt10:43:411
3127799342,4cyclictest81rcu_preempt12:37:411
31277993418,13cyclictest6670-21grep11:55:221
3127699345,25cyclictest0-21swapper/010:05:470
3127699344,4cyclictest81rcu_preempt09:56:010
31276993414,6cyclictest23385-21ntp_states08:25:260
3127699341,31cyclictest0-21swapper/008:04:360
3127699341,21cyclictest14156-21ssh09:16:190
3127699341,13cyclictest0-21swapper/008:50:330
100212346,3sleep010099-21python09:45:270
3127799336,4cyclictest81rcu_preempt07:55:271
3127799334,4cyclictest81rcu_preempt10:30:251
3127799334,4cyclictest81rcu_preempt08:59:421
3127799333,28cyclictest0-21swapper/109:03:561
31277993326,4cyclictest8787-21ssh11:24:561
3127799332,4cyclictest81rcu_preempt09:21:131
3127799332,14cyclictest0-21swapper/109:33:321
3127799331,14cyclictest0-21swapper/109:14:211
3127799331,14cyclictest0-21swapper/109:14:211
31277993310,4cyclictest81rcu_preempt10:35:021
3127699337,13cyclictest0-21swapper/012:34:320
31276993325,5cyclictest7451-21ssh09:43:150
3127699332,4cyclictest81rcu_preempt11:03:060
31276993324,5cyclictest6165-21ssh10:48:320
3127699331,4cyclictest81rcu_preempt10:51:000
31276993314,6cyclictest30929-21memory12:20:220
31276993311,10cyclictest21141-21ssh12:44:230
3127799326,14cyclictest0-21swapper/112:10:421
3127799325,24cyclictest0-21swapper/111:14:161
3127799324,4cyclictest81rcu_preempt07:39:501
3127799322,26cyclictest0-21swapper/112:41:231
3127799321,13cyclictest0-21swapper/110:45:441
3127799321,12cyclictest12342idleruntime-cro08:55:001
3127699328,13cyclictest0-21swapper/009:53:360
3127699327,12cyclictest3302-21runrttasks11:22:080
3127699324,4cyclictest81rcu_preempt09:36:110
3127699321,28cyclictest0-21swapper/012:14:060
3127699321,28cyclictest0-21swapper/011:45:160
31276993211,9cyclictest0-21swapper/012:16:260
3127699321,12cyclictest10939-21cut12:00:110
31276993210,5cyclictest23538-21ssh12:46:110
190902321,27sleep119101-21ssh10:28:371
106822325,23sleep110692-21ssh09:45:561
31277993124,3cyclictest0-21swapper/111:29:061
31277993117,12cyclictest22-21ksoftirqd/111:45:291
3127799311,5cyclictest81rcu_preempt12:29:501
3127799311,5cyclictest81rcu_preempt12:29:491
3127799311,4cyclictest81rcu_preempt12:08:511
3127699316,21cyclictest0-21swapper/011:32:360
3127699315,13cyclictest27508-21if_eth011:10:180
3127699314,4cyclictest81rcu_preempt10:41:580
31276993121,6cyclictest23822-21ssh10:33:260
3127699312,16cyclictest1601-21iostat11:50:220
3127699311,4cyclictest81rcu_preempt09:30:010
3127699311,4cyclictest81rcu_preempt09:21:200
3127799305,4cyclictest81rcu_preempt09:19:411
31277993023,4cyclictest2309-21cron08:30:011
31277993016,4cyclictest22-21ksoftirqd/109:25:091
31277993015,11cyclictest22-21ksoftirqd/112:02:001
3127799301,4cyclictest81rcu_preempt08:20:321
3127699301,4cyclictest81rcu_preempt11:41:180
31276993012,5cyclictest29418-21grep08:40:290
31276993012,5cyclictest1353-21users07:30:050
31276993010,6cyclictest17183-21df08:10:120
308192300,4sleep030823-21needreboot08:45:220
89622291,5sleep00-21swapper/007:47:250
3127699299,6cyclictest24928-21/usr/sbin/munin08:30:170
3127699293,11cyclictest5950-21hwlatdetect07:40:170
3127699292,14cyclictest21168-21hddtemp_smartct08:20:150
31276992912,13cyclictest2083-21memory08:55:230
31276992911,6cyclictest3678-21df_inode09:00:120
279092291,5sleep00-21swapper/008:38:580
261142291,5sleep10-21swapper/108:34:471
3127799284,18cyclictest15323-21diskstats08:05:161
3127799281,4cyclictest81rcu_preempt08:49:211
3127799281,23cyclictest1875-21fschecks_count07:30:151
31276992818,6cyclictest11646-21cut07:55:160
31276992812,12cyclictest6400-21sort09:05:300
31276992811,5cyclictest19604-21ntp_states08:15:250
3127699272,12cyclictest3981-21/usr/sbin/munin07:35:160
182742271,5sleep10-21swapper/108:11:311
145292271,5sleep10-21swapper/108:01:351
3127799261,21cyclictest2645-21snmpd08:40:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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