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2026-02-05 - 10:06
[ 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 05, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2903824948,0sleep10-21swapper/119:03:251
2916524132,0sleep20-21swapper/219:04:502
2895023828,0sleep30-21swapper/319:02:233
2280123524,0sleep00-21swapper/019:00:040
29244991212,0cyclictest0-21swapper/021:06:250
292469976,0cyclictest1053-21grep20:20:132
339960,0migration/327148-21sh21:43:193
339960,0migration/313331-21kthreadcore23:15:123
339960,0migration/31291-21runrttasks21:05:193
29725060,0irq/27-eth0-tx-5797-21munin-node20:00:140
29715060,0irq/26-eth0-rx-9352-21memory21:30:153
29715060,0irq/26-eth0-rx-3835-21entropy22:10:083
29715060,0irq/26-eth0-rx-27645-21cut22:25:083
29715060,0irq/26-eth0-rx-0-21swapper/323:46:073
292459965,0cyclictest2788-21ssh22:09:031
292459960,0cyclictest0-21swapper/120:25:091
259960,0migration/22943-21sh21:28:212
149960,0migration/027467-21sh21:24:170
4150,0ktimersoftd/00-21swapper/021:27:360
339950,0migration/39681-21unixbench-2d19:10:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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