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2026-02-22 - 21:16
[ 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 #c, slot #3

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 50 highest latencies:
System rackcslot3s.osadl.org (updated Sun Feb 22, 2026 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
287822336314,4sleep20-21swapper/207:08:242
286782331306,23sleep30-21swapper/307:07:053
286132317307,8sleep00-21swapper/007:06:140
29173993160,315cyclictest16221-21kworker/u16:2+efi_rts_wq08:40:131
29173993150,312cyclictest16221-21kworker/u16:2+efi_rts_wq08:10:121
29172993150,312cyclictest16221-21kworker/u16:2+efi_rts_wq10:40:130
29173993140,313cyclictest8263-21kworker/u16:0+efi_rts_wq12:10:131
29173993140,313cyclictest16221-21kworker/u16:2+efi_rts_wq08:55:121
286292314307,5sleep10-21swapper/107:06:271
29173993130,312cyclictest20567-21kworker/u16:4+efi_rts_wq11:25:151
29172993130,311cyclictest20567-21kworker/u16:4+efi_rts_wq10:25:130
29174993120,311cyclictest20567-21kworker/u16:4+efi_rts_wq10:23:112
29173993100,309cyclictest20304-21kworker/u16:3+efi_rts_wq07:50:131
29172993100,307cyclictest15402-21kworker/u16:2+efi_rts_wq12:00:120
29173993090,308cyclictest16221-21kworker/u16:2+efi_rts_wq09:45:121
29173993090,307cyclictest16221-21kworker/u16:2+efi_rts_wq07:30:141
29175993070,306cyclictest8263-21kworker/u16:0+efi_rts_wq12:30:123
29173993060,305cyclictest27930-21kworker/u16:3+efi_rts_wq11:53:291
29173993060,305cyclictest20567-21kworker/u16:4+efi_rts_wq09:25:121
29173993060,305cyclictest16221-21kworker/u16:2+efi_rts_wq10:15:111
29175993050,304cyclictest20567-21kworker/u16:4+efi_rts_wq08:22:503
29173993050,303cyclictest18136-21kworker/u16:1+efi_rts_wq11:40:141
29174993020,301cyclictest20567-21kworker/u16:4+efi_rts_wq11:20:132
29175993010,300cyclictest16221-21kworker/u16:2+efi_rts_wq07:17:373
29172993010,300cyclictest15402-21kworker/u16:2+efi_rts_wq11:55:120
29175992990,298cyclictest20304-21kworker/u16:3+efi_rts_wq07:45:153
29175992990,298cyclictest16221-21kworker/u16:2+efi_rts_wq08:32:513
29173992990,298cyclictest20567-21kworker/u16:4+efi_rts_wq08:37:521
29173992990,298cyclictest16221-21kworker/u16:2+efi_rts_wq09:58:071
29172992980,297cyclictest16221-21kworker/u16:2+efi_rts_wq07:32:400
29172992970,296cyclictest20567-21kworker/u16:4+efi_rts_wq09:33:010
29175992960,295cyclictest16221-21kworker/u16:2+efi_rts_wq08:07:473
29174992950,294cyclictest27930-21kworker/u16:3+efi_rts_wq11:43:262
29173992950,294cyclictest8263-21kworker/u16:0+efi_rts_wq12:25:121
29173992950,294cyclictest20567-21kworker/u16:4+efi_rts_wq08:00:131
29175992940,293cyclictest16221-21kworker/u16:2+efi_rts_wq10:55:133
29173992940,293cyclictest16221-21kworker/u16:2+efi_rts_wq07:15:011
29172992940,293cyclictest16221-21kworker/u16:2+efi_rts_wq10:15:120
29172992940,291cyclictest16221-21kworker/u16:2+efi_rts_wq10:50:140
29175992930,292cyclictest16221-21kworker/u16:2+efi_rts_wq07:57:453
29174992930,292cyclictest20567-21kworker/u16:4+efi_rts_wq08:35:132
29173992930,292cyclictest20304-21kworker/u16:3+efi_rts_wq07:55:131
29173992930,292cyclictest16221-21kworker/u16:2+efi_rts_wq10:05:141
29172992930,292cyclictest16221-21kworker/u16:2+efi_rts_wq10:35:130
29173992910,290cyclictest20304-21kworker/u16:3+efi_rts_wq07:45:151
29174992900,289cyclictest16221-21kworker/u16:2+efi_rts_wq09:05:132
29172992900,289cyclictest20567-21kworker/u16:4+efi_rts_wq09:15:140
29174992880,287cyclictest16221-21kworker/u16:2+efi_rts_wq09:12:582
29173992880,287cyclictest18136-21kworker/u16:1+efi_rts_wq11:45:131
29172992870,286cyclictest20567-21kworker/u16:4+efi_rts_wq11:15:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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