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2026-01-26 - 09:06
[ 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 Mon Jan 26, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
121725140,0sleep20-21swapper/219:03:422
304450460,0irq/25-eth10-21swapper/319:04:393
117223523,0sleep00-21swapper/019:03:080
113523523,0sleep10-21swapper/119:02:451
35160,0ktimersoftd/30-21swapper/321:20:433
339960,0migration/36040-21sh22:49:103
339960,0migration/34986-21sh00:30:493
339960,0migration/331385-21sh22:05:183
339960,0migration/331148-21sh21:23:033
339960,0migration/321561-21sh22:57:363
339960,0migration/312602-21sh23:52:413
29715060,0irq/26-eth0-rx-972-21if_err_eth1.321:26:063
259960,0migration/26399-21idleruntime20:46:062
259960,0migration/26399-21idleruntime20:46:062
259960,0migration/219754-21sh23:56:152
179960,0migration/131116-21sh22:04:311
14769960,0cyclictest0-21swapper/200:02:502
14749966,0cyclictest0-21swapper/122:11:081
14739965,0cyclictest10611-21kthreadcore22:51:080
14739960,0cyclictest6025-21ssh22:28:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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