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2026-02-05 - 23:52
[ 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 #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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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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackeslot4s.osadl.org (updated Thu Feb 05, 2026 00:44:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
604954995145,4cyclictest770705-21/usr/sbin/munin21:50:130
604968995046,3cyclictest728888-21kworker/u8:0+flush-259:022:00:003
604968994946,2cyclictest572709-21kworker/u8:4+events_unbound19:15:143
604968994744,2cyclictest641436-21kworker/u8:0+flush-259:020:05:113
604968994642,3cyclictest713462-21kworker/u8:3+flush-259:021:20:213
604961994640,3cyclictest728888-21kworker/u8:0+events_unbound21:55:261
604968994542,2cyclictest744754-21kworker/u8:1+flush-259:021:35:143
604964994539,4cyclictest604895-21latency_hist19:10:002
604968994440,3cyclictest827564-21kworker/u8:0+flush-259:023:15:203
604961994339,3cyclictest848633-21kworker/u8:2+flush-259:023:20:201
604954994332,9cyclictest672617-21apt-get20:15:110
604968994239,2cyclictest827564-21kworker/u8:0+flush-259:023:35:203
604968994239,2cyclictest662023-21kworker/u8:1+events_unbound20:10:203
604964994238,3cyclictest662023-21kworker/u8:1+flush-259:020:10:262
604964994236,4cyclictest703137-21latency_hist20:45:012
604968994138,2cyclictest728888-21kworker/u8:0+flush-259:021:50:213
604968994137,3cyclictest641436-21kworker/u8:0+flush-259:020:15:263
604968994037,2cyclictest1741588-21kworker/u8:0+flush-259:019:20:243
604968994037,2cyclictest1741588-21kworker/u8:0+events_unbound19:10:223
604961994035,4cyclictest636302-21latency_hist19:40:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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