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2026-02-26 - 06:59
[ 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 Thu Feb 26, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27663449912500,1246cyclictest30267472sleep33
27663449911080,1103cyclictest2820184-21sleep3
2766344993560,352cyclictest2961875-21turbostat3
2766344991913,3cyclictest3136566-21turbostat3
2766344991815,1cyclictest0-21swapper/33
2766344991714,1cyclictest0-21swapper/33
276634499166,7cyclictest31160682sleep33
2766344991613,1cyclictest0-21swapper/33
2766344991613,1cyclictest0-21swapper/33
276634499161,11cyclictest3091058-21turbostat3
276634499155,7cyclictest2936528-21taskset3
276634499154,8cyclictest30015432sleep33
2766344991512,1cyclictest0-21swapper/33
2766344991512,1cyclictest0-21swapper/33
2766344991512,1cyclictest0-21swapper/33
2766344991512,1cyclictest0-21swapper/33
276634499151,11cyclictest2999943-21chrt3
276634499151,11cyclictest2999943-21chrt3
276634499151,11cyclictest2800844-21chrt3
276634499151,10cyclictest3169018-21taskset3
276634499151,10cyclictest3143019-21taskset3
276634499151,10cyclictest28784482sleep33
28399512142,3sleep02839973-21apt-get0
276634499145,6cyclictest31094502sleep33
276634499145,6cyclictest28592892sleep33
276634499144,7cyclictest2836581-21taskset3
276634499143,8cyclictest3156173-21taskset3
2766344991412,1cyclictest0-21swapper/33
2766344991412,1cyclictest0-21swapper/33
2766344991412,1cyclictest0-21swapper/33
2766344991412,1cyclictest0-21swapper/33
2766344991412,1cyclictest0-21swapper/33
2766344991412,1cyclictest0-21swapper/33
2766344991412,1cyclictest0-21swapper/33
276634499141,10cyclictest3023911-21taskset3
276634499141,10cyclictest2904174-21turbostat3
276634499140,11cyclictest2766679-21chrt3
276634499140,10cyclictest2974972-21taskset3
30157332131,3sleep00-21swapper/00
276634499137,3cyclictest2826297-21taskset3
276634499131,9cyclictest3162941-21taskset3
276634499131,9cyclictest3143242-21taskset3
276634499131,9cyclictest2993770-21taskset3
276634499131,9cyclictest2971035-21chrt3
276634499131,9cyclictest2929558-21chrt3
276634499131,9cyclictest2909813-21taskset3
276634499131,9cyclictest2884922-21taskset3
276634499131,9cyclictest2877429-21taskset3
2766344991312,0cyclictest0-21swapper/33
2766344991312,0cyclictest0-21swapper/33
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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