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2026-02-11 - 06:54
[ 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 #e, 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.

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 100 highest latencies:
System rackeslot4s.osadl.org (updated Wed Feb 11, 2026 00:44:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3105288994639,5cyclictest3334101-21latency_hist22:50:013
3105276994433,9cyclictest3438436-21/usr/sbin/munin00:30:131
3105275994237,4cyclictest3198960-21apt-get20:40:000
3105275994237,3cyclictest3126120-21/usr/sbin/munin19:30:140
3105275994135,4cyclictest3105222-21latency_hist19:09:590
3105275994134,5cyclictest3354700-21latency_hist23:10:010
3105288994033,5cyclictest3178276-21latency_hist20:20:013
3105276993732,3cyclictest3401407-21apt-get23:55:101
3105288993630,4cyclictest3303418-21/usr/sbin/munin22:20:143
3105275993531,3cyclictest3209956-21apt-get20:50:120
3105288993428,4cyclictest3110664-21kworker/u8:0+flush-259:019:40:123
3105276993427,5cyclictest3396006-21latency_hist23:50:011
3105276993328,3cyclictest3261485-21/usr/sbin/munin21:40:151
3105275993329,3cyclictest3448652-21gpgv00:40:010
3105288993227,4cyclictest3157453-21kworker/u8:1+flush-259:020:35:003
3105288993124,4cyclictest3146050-21ntpq19:45:233
3105276993126,4cyclictest3157492-21apt-get20:00:111
3105276993121,8cyclictest3152354-21apt-get19:55:141
3105288993024,4cyclictest3433280-21/usr/sbin/munin00:25:163
3105288993023,5cyclictest3251210-21/usr/sbin/munin21:30:143
3105276993024,4cyclictest3298298-21/usr/sbin/munin22:15:141
3105288992923,4cyclictest3245779-21latency_hist21:25:003
3105288992922,5cyclictest3302926-21kworker/u8:3+flush-259:022:50:173
3105275992925,3cyclictest3385674-21kworker/u8:3+flush-259:000:05:170
3105275992923,4cyclictest3287779-21latency_hist22:05:000
3105275992923,4cyclictest3287779-21latency_hist22:05:000
3105276992822,4cyclictest3365005-21latency_hist23:20:011
3105275992814,13cyclictest507-21in:imuxsock21:55:000
3105288992723,3cyclictest3324014-21kworker/u8:2+events_unbound22:40:143
3105288992720,5cyclictest3318614-21latency_hist22:35:013
3105276992722,3cyclictest3225469-21apt-get21:05:111
3105275992721,4cyclictest3298059-21latency_hist22:15:000
3105288992623,2cyclictest3209708-21kworker/u8:4+flush-259:021:10:223
3105288992619,5cyclictest3214893-21latency_hist20:55:013
3105283992621,3cyclictest3411562-21latency_hist00:05:012
3105283992621,3cyclictest3354966-21apt-get23:10:122
3105283992620,5cyclictest3422301-21apt-get00:15:002
3105275992622,3cyclictest3188882-21apt-get20:30:120
3105275992619,5cyclictest3177421-21ntpq20:15:220
3105288992521,3cyclictest3105492-21/usr/sbin/munin19:10:133
3105288992518,4cyclictest252-21systemd-journal21:10:003
3105283992519,4cyclictest3199067-21cp20:40:012
3105283992519,4cyclictest3167546-21latency_hist20:10:012
3105283992518,2cyclictest0-21swapper/219:50:002
3105276992519,4cyclictest3208840-21ntpq20:45:231
3105288992420,3cyclictest3308361-21kworker/u8:0+flush-259:022:25:263
3105288992419,3cyclictest3172700-21kworker/u8:0+events_unbound20:45:013
3105276992421,2cyclictest3209708-21kworker/u8:4+flush-259:021:00:161
3105276992418,4cyclictest3438197-21latency_hist00:30:011
3105275992318,4cyclictest3246054-21apt-get21:25:130
310528399223,6cyclictest3369435-21/usr/sbin/munin23:20:232
3105283992217,4cyclictest3380740-21/usr/sbin/munin23:35:162
3105283992216,4cyclictest3173328-21/usr/sbin/munin20:15:202
3105276992218,3cyclictest3235747-21/usr/sbin/munin21:15:201
3105276992217,4cyclictest252-21systemd-journal23:15:001
3105275992220,1cyclictest3303189-21idleruntime-cro22:20:000
3105275992217,3cyclictest3256112-21latency_hist21:35:000
3105288992117,3cyclictest3324014-21kworker/u8:2+events_unbound23:00:253
3105288992115,4cyclictest3151236-21ntpq19:50:223
310528399214,4cyclictest3125056-21ntpq19:25:242
3105283992110,6cyclictest3246214-21diskstats21:25:162
310527699219,10cyclictest0-21swapper/119:35:001
3105275992117,3cyclictest0-21swapper/019:15:000
3105275992116,3cyclictest252-21systemd-journal22:37:060
3105275992115,4cyclictest3271071-21ntpq21:45:210
310527599210,19cyclictest3427878-21turbostat00:20:000
3105288992016,3cyclictest3364751-21kworker/u8:0+flush-259:023:25:173
3105288992015,4cyclictest3204545-21kworker/u8:2+flush-259:020:45:283
3105288992014,4cyclictest3364751-21kworker/u8:0+flush-259:023:35:183
3105288992013,5cyclictest3292922-21latency_hist22:10:003
3105283992016,3cyclictest3282217-21apt-get22:00:022
3105283992016,3cyclictest3282217-21apt-get22:00:022
3105283992016,3cyclictest3141363-21apt-get19:45:002
3105283992015,3cyclictest3412071-21base6400:05:002
3105283992014,4cyclictest3147191-21apt-get19:50:112
310527599208,10cyclictest0-21swapper/021:10:160
310527599205,13cyclictest3167749-21sed20:10:010
3105275992015,4cyclictest3313765-21apt-get22:30:110
3105288991916,2cyclictest3411586-21gpgv00:05:003
3105288991916,2cyclictest3324014-21kworker/u8:2+flush-259:023:15:173
3105288991915,3cyclictest3448756-21gpgv00:40:003
3105288991915,2cyclictest0-21swapper/319:25:003
3105288991914,4cyclictest3375605-21kworker/u8:1+flush-259:023:50:253
3105288991913,4cyclictest3277312-21kworker/u8:0+flush-259:022:15:203
310528399194,5cyclictest3346763-21cat23:00:152
310528399193,4cyclictest3400256-21ntpq23:50:202
310527699194,5cyclictest3260379-21ntpq21:35:211
310527699191,9cyclictest3282223-21latency_hist22:00:001
310527699191,9cyclictest3282223-21latency_hist22:00:001
310527699191,3cyclictest3427880-21awk00:20:001
3105276991913,4cyclictest252-21systemd-journal21:15:001
310527699190,3cyclictest3193176-21timerwakeupswit20:30:291
3105275991915,3cyclictest3339480-21/usr/sbin/munin22:55:200
3105275991914,3cyclictest252-21systemd-journal23:38:070
3105275991911,7cyclictest61150irq/133-enp0s29f1:tx-000:30:100
310527599190,4cyclictest3292024-21ntpq22:05:200
310527599190,17cyclictest3370157-21turbostat23:25:000
3105288991814,3cyclictest3142014-21kworker/u8:4+flush-259:020:25:003
3105283991815,2cyclictest3271962-21kworker/u8:1+flush-259:021:55:002
3105283991814,3cyclictest3157453-21kworker/u8:1+flush-259:020:50:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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