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2026-02-08 - 01:29
[ 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 #0, 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 100 highest latencies:
System rack0slot4s.osadl.org (updated Sun Feb 08, 2026 00:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
87820127655,20sleep140-21swapper/1419:09:246
87788526563,1sleep110-21swapper/1119:05:533
87788125653,1sleep90-21swapper/919:05:5115
87784524947,1sleep00-21swapper/019:05:270
87786024643,2sleep70-21swapper/719:05:3313
87788624543,1sleep120-21swapper/1219:05:544
87810824139,1sleep60-21swapper/619:08:2912
87788323937,1sleep100-21swapper/1019:05:522
87809223836,1sleep150-21swapper/1519:08:217
878682993732,4cyclictest1132888-21kworker/u32:3+flush-259:023:40:488
87871899360,23cyclictest0-21swapper/1422:15:346
878682993627,7cyclictest1215525-21Renderer00:15:228
878682993627,7cyclictest1215525-21Renderer00:15:218
87824523634,1sleep50-21swapper/519:09:4811
878697993532,2cyclictest0-21swapper/721:30:1513
87821823533,1sleep40-21swapper/419:09:3110
87802423533,1sleep130-21swapper/1319:07:315
87787523533,1sleep30-21swapper/319:05:469
87868599342,32cyclictest1048521-21kworker/3:2-events22:18:319
87800923432,1sleep80-21swapper/819:07:2614
87871899339,11cyclictest0-21swapper/1420:25:446
878695993310,1cyclictest1617353-21thunderbird22:06:1812
87869199331,9cyclictest66150irq/154-i91520:01:1811
878685993332,1cyclictest1043218-21kworker/u32:4+events_unbound22:05:179
87868599332,31cyclictest511ktimers/323:43:209
878682993329,4cyclictest1617353-21thunderbird22:49:428
878682993328,3cyclictest1199654-21kworker/u32:1+flush-259:000:07:498
878682993327,3cyclictest959139-21kworker/u32:0+events_unbound21:05:108
878682993327,3cyclictest1617471-21WRScene~ilder#121:12:148
878682993327,3cyclictest1617471-21WRScene~ilder#121:12:138
878682993327,3cyclictest1617353-21thunderbird22:17:198
878682993327,3cyclictest1617353-21thunderbird21:30:158
87868299330,30cyclictest951691-21cpuspeed20:35:128
87868299330,30cyclictest1617353-21thunderbird22:51:048
87868299330,30cyclictest1617353-21thunderbird22:03:578
87868299330,30cyclictest1173959-21ssh23:36:568
87803123331,1sleep10-21swapper/119:07:361
87871899328,24cyclictest0-21swapper/1400:16:236
87871899328,24cyclictest0-21swapper/1400:16:236
87871899327,25cyclictest0-21swapper/1423:21:276
878711993232,0cyclictest0-21swapper/1100:18:163
878711993232,0cyclictest0-21swapper/1100:18:153
878711993231,1cyclictest1617353-21thunderbird21:13:443
878711993231,1cyclictest1617353-21thunderbird21:13:433
878706993231,1cyclictest1096499-21kworker/10:2+events22:53:542
87869199320,3cyclictest1617422-21Renderer20:11:5011
87869199320,32cyclictest0-21swapper/522:55:4911
878685993232,0cyclictest0-21swapper/323:32:069
878685993232,0cyclictest0-21swapper/319:40:139
878682993229,1cyclictest1617471-21WRScene~ilder#119:32:318
878682993227,3cyclictest1617471-21WRScene~ilder#100:33:318
878682993227,3cyclictest1232884-21ssh00:21:588
878682993227,3cyclictest1232884-21ssh00:21:578
878682993226,3cyclictest959181-21StreamT~s8
878682993226,3cyclictest1617353-21thunderbird00:39:038
878682993226,3cyclictest1233243-21updatedb00:28:368
878682993226,3cyclictest1233243-21updatedb00:28:358
87868299320,30cyclictest1617471-21WRScene~ilder#123:09:308
87868299320,29cyclictest0-21swapper/223:27:578
87868299320,29cyclictest0-21swapper/223:17:168
878675993231,1cyclictest1186182-21kworker/u32:0+flush-259:000:20:190
878675993231,1cyclictest1186182-21kworker/u32:0+flush-259:000:20:180
87789323230,1sleep20-21swapper/219:06:018
878722993130,1cyclictest1774-21snmpd21:10:537
878722993130,1cyclictest1774-21snmpd21:10:527
87872299310,31cyclictest1617353-21thunderbird22:26:377
87872299310,2cyclictest1617353-21thunderbird21:21:107
87871899317,24cyclictest0-21swapper/1400:27:226
87871899317,24cyclictest0-21swapper/1400:27:226
87871899310,30cyclictest0-21swapper/1419:51:426
87871699310,30cyclictest0-21swapper/1320:24:595
87871399310,30cyclictest0-21swapper/1219:20:164
878711993131,0cyclictest0-21swapper/1100:14:113
878706993130,1cyclictest940969-21kworker/10:2+events21:23:342
87870699310,30cyclictest0-21swapper/1022:45:142
87870699310,2cyclictest1617353-21thunderbird22:21:132
87870699310,28cyclictest0-21swapper/1023:35:162
878703993130,1cyclictest1774-21snmpd22:59:5315
878703993129,1cyclictest1774-21snmpd19:14:2315
87870399310,31cyclictest1617353-21thunderbird21:21:4115
87870399310,2cyclictest1617353-21thunderbird00:12:5715
87870199310,30cyclictest0-21swapper/821:00:0114
87870199310,30cyclictest0-21swapper/819:43:3014
878697993130,1cyclictest1774-21snmpd19:37:5813
878697993129,1cyclictest1774-21snmpd23:03:2313
87869199310,2cyclictest1617353-21thunderbird23:10:4811
878685993131,0cyclictest0-21swapper/321:30:469
878685993130,1cyclictest1774-21snmpd23:00:599
87868599310,31cyclictest511ktimers/300:08:139
878682993127,4cyclictest1617353-21thunderbird22:58:308
878682993127,4cyclictest1617353-21thunderbird19:21:358
878682993126,3cyclictest0-21swapper/223:56:018
878682993125,6cyclictest1617353-21thunderbird22:22:128
878682993125,3cyclictest1617353-21thunderbird21:51:598
87868299310,2cyclictest1617353-21thunderbird23:53:588
878678993130,1cyclictest1774-21snmpd00:13:101
878722993029,1cyclictest891736-21kworker/u32:2+events_unbound19:45:167
878722993028,2cyclictest1617353-21thunderbird00:07:047
87871899306,14cyclictest0-21swapper/1423:32:266
878718993029,1cyclictest1774-21snmpd21:41:266
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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