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2026-03-05 - 17:36
[ 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 #2, 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 all highest latencies:
System rack2slot7s.osadl.org (updated Thu Mar 05, 2026 07:55:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3720231995746,8cyclictest349864-21sh06:10:422
3720230995746,7cyclictest3957045-21sh05:40:281
3720229995541,11cyclictest354032-21sh06:10:560
3720230995446,5cyclictest395829-21sh06:12:341
3720231995343,6cyclictest4030385-21execl05:50:272
3720231995043,4cyclictest3708774-21kworker/u8:9-xprtiod05:50:022
3720231995042,5cyclictest293969-21sh06:08:202
3720229995035,12cyclictest4017707-21sh05:43:040
3720229994941,5cyclictest299130-21od06:08:320
3720231994832,5cyclictest372024250kworker/u8:16+xprtiod05:41:152
3720230994740,4cyclictest322162-21sh06:09:271
3720230994739,5cyclictest1166-21mta-sts-daemon06:15:311
372023099452,34cyclictest3725195-21execl05:20:291
3720231994336,4cyclictest3723209-21cut05:15:002
3720230994235,4cyclictest0-21swapper/105:50:341
3720231994131,8cyclictest3723202-21Run06:01:402
3720230994132,5cyclictest3720242-21kworker/u8:16-rpciod05:33:101
3720229994131,8cyclictest4029372-21ld05:45:280
3720231994032,4cyclictest3950874-21cron05:40:002
3720230994032,5cyclictest4034332-21pipe06:00:321
3720229994032,5cyclictest4030386-21execl05:50:250
3720229994027,10cyclictest3601624-21cups-browsed06:35:250
3720230993932,4cyclictest408776-21logrotate06:25:011
3720229993910,21cyclictest151ktimers/006:20:260
3720231993832,3cyclictest0-21swapper/205:20:312
3720230993831,4cyclictest4030136-21execl05:49:341
3720229993729,6cyclictest4073720-21spawn06:02:580
3720231993628,5cyclictest3727802-21timerwakeupswit05:25:372
3720231993627,6cyclictest3601624-21cups-browsed05:33:152
3720229993628,5cyclictest411885-21latency_hist06:35:020
3720230993527,5cyclictest3950895-21munin-plugin-st05:40:001
3720229993529,4cyclictest4033420-21Run05:59:320
3720231993427,4cyclictest408780-21cut06:25:012
3720231993425,6cyclictest3601624-21cups-browsed06:35:362
3720230993426,5cyclictest4032008-21fstime05:55:251
3720229993421,11cyclictest0-21swapper/006:20:010
3720231993325,5cyclictest4033345-21Run05:58:402
3720230993325,4cyclictest0-21swapper/105:05:311
3720229993327,4cyclictest3951283-21sh05:40:020
3720229993223,6cyclictest812-21cron05:30:020
372022999321,24cyclictest3725195-21execl05:20:350
3720231993126,2cyclictest0-21swapper/206:20:012
3720231993125,3cyclictest0-21swapper/206:25:282
3720230993123,5cyclictest409300-21grep06:25:181
372022999312,25cyclictest3726746-21fstime05:25:290
3720229993024,4cyclictest3724940-21munin-run05:20:000
3720231992920,6cyclictest3601624-21cups-browsed06:30:282
3720229992921,6cyclictest3721030-21needreboot05:05:220
3720230992822,3cyclictest0-21swapper/105:20:011
3720230992821,4cyclictest0-21swapper/105:15:011
3720230992820,5cyclictest3720407-21latency_hist05:05:021
3720229992816,6cyclictest3606321-21systemd-journal05:15:000
3720231992719,5cyclictest3724930-21cron05:20:002
3720229992722,3cyclictest151ktimers/006:25:290
3720231992619,5cyclictest3717554-21kworker/u8:10+xprtiod05:05:012
3720231992618,5cyclictest3601624-21cups-browsed05:09:112
3720230992519,3cyclictest0-21swapper/105:25:291
3720230992516,6cyclictest3601624-21cups-browsed06:31:551
3720230992215,4cyclictest413265-21idleruntime-cro06:40:011
3720229992113,6cyclictest191rcuc/005:05:010
372023299191,6cyclictest0-21swapper/305:25:293
372023299172,6cyclictest0-21swapper/306:00:263
372023299171,6cyclictest0-21swapper/306:15:333
372023299161,6cyclictest0-21swapper/306:20:303
372023299153,6cyclictest0-21swapper/306:10:383
372023299152,7cyclictest0-21swapper/305:40:243
372023299152,4cyclictest0-21swapper/305:30:253
372023299151,5cyclictest0-21swapper/305:35:263
372023299141,7cyclictest0-21swapper/306:05:293
372023299141,7cyclictest0-21swapper/305:55:323
372023299141,7cyclictest0-21swapper/305:50:323
372023299141,5cyclictest0-21swapper/306:30:303
372023299141,5cyclictest0-21swapper/305:10:273
372023299133,5cyclictest0-21swapper/305:45:253
372023299132,4cyclictest0-21swapper/305:05:273
372023299121,6cyclictest0-21swapper/305:20:273
372023299121,6cyclictest0-21swapper/305:15:243
372023299112,4cyclictest0-21swapper/306:25:253
372023299101,5cyclictest0-21swapper/306:40:013
37202329981,4cyclictest0-21swapper/305:05:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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