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2026-02-19 - 11:25
[ 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 #1, slot #2

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 20 highest latencies:
System rack1slot2s.osadl.org (updated Thu Feb 19, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
304450460,0irq/25-eth10-21swapper/318:59:383
469524332,0sleep20-21swapper/218:59:012
542823725,0sleep00-21swapper/019:03:030
538123424,0sleep10-21swapper/119:02:281
8215060,0irq/24-0000:00:21703-21dump-pmu-power20:28:372
339960,0migration/39045-21sh00:29:053
339960,0migration/330402-21sh21:41:473
339960,0migration/328847-21kthreadcore19:18:543
339960,0migration/322690-21sh21:37:353
339960,0migration/321490-21sh22:17:073
339960,0migration/310420-21munin-node23:08:553
29725060,0irq/27-eth0-tx-31571-21munin-node21:03:560
29715060,0irq/26-eth0-rx-30831-21cut22:43:533
29715060,0irq/26-eth0-rx-0-21swapper/321:29:043
149960,0migration/013141-21sh21:49:200
8215050,0irq/24-0000:00:6637-21dump-pmu-power21:48:372
8215050,0irq/24-0000:00:6489-21awk19:28:372
8215050,0irq/24-0000:00:12159-21python22:08:582
55529955,0cyclictest0-21swapper/123:33:051
55529955,0cyclictest0-21swapper/121:23:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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