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2026-02-16 - 18:26
[ 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 #5, slot #4

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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  Intel
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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: ondemand
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack5slot4s.osadl.org (updated Mon Feb 16, 2026 12:44:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
340361922270,4sleep3584-21kworker/3:2-events10:56:043
31772452590,5sleep3471rcuc/307:06:183
3177750995647,6cyclictest3368439-21latency_hist10:20:001
3177747995348,4cyclictest3481553-21kworker/u8:3+events_unbound12:16:170
3177747995341,4cyclictest3168018-21kworker/u8:2+events_unbound07:15:010
3177747995246,4cyclictest3210483-21kworker/u8:3+events_unbound08:26:120
3177747994944,3cyclictest3502639-21kworker/u8:2+events_unbound12:36:190
3177747994944,3cyclictest3502639-21kworker/u8:2+events_unbound12:36:190
3177747994943,4cyclictest3210483-21kworker/u8:3+events_unbound08:56:130
3177747994842,4cyclictest3209872-21apt-get07:40:370
3177747994742,3cyclictest3457374-21kworker/u8:0+events_unbound11:56:030
3177750994642,3cyclictest3239249-21kworker/u8:0+events_unbound08:25:011
3177747994541,3cyclictest3472522-21kworker/u8:2+events_unbound12:26:070
3177747994540,4cyclictest3487630-21kworker/u8:0+events_unbound12:31:070
3177747994539,4cyclictest3279000-21kworker/u8:1+events_unbound09:36:130
3177752994436,6cyclictest274-21systemd-journal11:40:002
3177750994434,7cyclictest3209580-21latency_hist07:40:001
3177750994434,7cyclictest3209580-21latency_hist07:40:001
3177747994440,3cyclictest3447490-21kworker/u8:1+events_unbound11:46:180
3177747994440,3cyclictest3168018-21kworker/u8:2+events_unbound07:36:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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