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2026-02-04 - 13:28
[ 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 #3, slot #5

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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  Eltec
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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 10 highest latencies:
System rack3slot5s.osadl.org (updated Wed Feb 04, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
121880ksoftirqd/11549750irq/29-eth0_g0_21:36:000
121870ksoftirqd/11549750irq/29-eth0_g0_23:14:130
30912730sleep11549850irq/30-eth0_g0_21:15:001
121560ksoftirqd/11549850irq/30-eth0_g0_22:57:031
121550ksoftirqd/11549850irq/30-eth0_g0_21:57:251
121520ksoftirqd/11549850irq/30-eth0_g0_22:08:451
121520ksoftirqd/11549750irq/29-eth0_g0_23:29:300
121520ksoftirqd/11549750irq/29-eth0_g0_22:24:271
1549750510irq/29-eth0_g0_0-21swapper/022:59:190
121510ksoftirqd/11549850irq/30-eth0_g0_23:29:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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