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2026-02-23 - 05:43
[ 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 #8

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 rackeslot8s.osadl.org (updated Mon Feb 23, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24030789911420,1138cyclictest25474632sleep33
2403078994000,397cyclictest2431037-21turbostat3
2403078994000,397cyclictest2431037-21turbostat3
2403078993210,318cyclictest2579540-21turbostat3
24396022340,1sleep10-21swapper/11
240307899201,16cyclictest2521218-21turbostat3
240307899181,13cyclictest2740586-21turbostat3
240307899181,13cyclictest2489069-21turbostat3
240307899181,13cyclictest2469826-21turbostat3
240307899171,13cyclictest0-21swapper/33
240307899171,13cyclictest0-21swapper/33
240307899170,14cyclictest2675603-21taskset3
24497542160,8sleep12449871-21python31
240307899165,8cyclictest25340822sleep33
240307899164,9cyclictest2573374-21taskset3
240307899162,10cyclictest2598795-21turbostat3
2403078991613,1cyclictest0-21swapper/33
240307899161,13cyclictest0-21swapper/33
240307899161,12cyclictest2830461-21turbostat3
240307899161,12cyclictest2810666-21taskset3
240307899161,12cyclictest2540778-21turbostat3
240307899161,12cyclictest0-21swapper/33
240307899161,12cyclictest0-21swapper/33
240307899161,12cyclictest0-21swapper/33
240307899161,12cyclictest0-21swapper/33
240307899161,12cyclictest0-21swapper/33
240307899161,12cyclictest0-21swapper/33
240307899161,12cyclictest0-21swapper/33
240307899161,12cyclictest0-21swapper/33
240307899161,12cyclictest0-21swapper/33
240307899161,11cyclictest2779468-21taskset3
240307899161,11cyclictest0-21swapper/33
25279012151,4sleep02527933-21apt-get0
240307899153,9cyclictest2778789-21taskset3
240307899153,9cyclictest2733801-21taskset3
240307899151,2cyclictest0-21swapper/33
240307899151,12cyclictest0-21swapper/33
240307899151,11cyclictest0-21swapper/33
240307899151,11cyclictest0-21swapper/33
240307899151,11cyclictest0-21swapper/33
240307899151,11cyclictest0-21swapper/33
240307899151,11cyclictest0-21swapper/33
240307899151,11cyclictest0-21swapper/33
240307899151,11cyclictest0-21swapper/33
240307899151,11cyclictest0-21swapper/33
240307899151,11cyclictest0-21swapper/33
240307899151,11cyclictest0-21swapper/33
240307899151,11cyclictest0-21swapper/33
240307899151,11cyclictest0-21swapper/33
240307899151,11cyclictest0-21swapper/33
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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