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2026-02-16 - 12:02
[ 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 #f, 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.
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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rackfslot7s.osadl.org (updated Mon Feb 16, 2026 00:44:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
304741499356417,3543cyclictest3060091-21kworker/3:1+events19:59:593
304740499310615,3088cyclictest3074480-21kworker/0:0+events20:35:190
304740799303315,3013cyclictest3105087-21kworker/1:1+events22:25:141
30474149927987,2787cyclictest3053810-21kworker/3:0+events19:35:203
304740799279813,2781cyclictest3064790-21kworker/1:2+events20:05:141
304740799273314,2715cyclictest3096854-21kworker/1:2+events21:45:011
304741299272113,2704cyclictest3102156-21kworker/2:0+events22:20:142
304741299262112,2606cyclictest3143990-21kworker/2:0+events00:10:002
304741299260913,2592cyclictest3148893-21kworker/2:0+events00:35:122
304741299259612,2581cyclictest3071302-21kworker/2:1+events20:45:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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