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2026-02-11 - 01:47
[ 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 Wed Feb 11, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
304450530,0irq/25-eth10-21swapper/319:00:413
1343423423,0sleep00-21swapper/019:02:580
1349323324,0sleep10-21swapper/119:03:431
1336023026,0sleep20-21swapper/219:02:082
4160,0ktimersoftd/00-21swapper/021:45:580
339960,0migration/332738-21sh23:35:063
339960,0migration/327539-21sh21:32:573
339960,0migration/326679-21sh21:51:303
339960,0migration/326279-21sh22:11:023
339960,0migration/31814-21sh22:57:323
339960,0migration/310625-21sh21:41:163
29715060,0irq/26-eth0-rx-12024-21perl22:24:353
149960,0migration/03086-21sh21:58:460
149960,0migration/026440-21sh21:29:480
149960,0migration/017543-21latency_hist00:29:220
149960,0migration/011651-21fschecks_count22:44:360
136229966,0cyclictest0-21swapper/022:39:220
8215050,0irq/24-0000:00:17880-21latency_hist23:49:222
4150,0ktimersoftd/00-21swapper/023:42:540
4150,0ktimersoftd/00-21swapper/000:04:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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