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2026-02-11 - 10:00
[ 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 #7, slot #4

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 rack7slot4s.osadl.org (updated Wed Feb 11, 2026 00:45:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
632599551,35cyclictest0-21swapper/200:10:132
631799447,26cyclictest21-21ksoftirqd/119:25:141
6317993625,5cyclictest0-21swapper/123:20:111
633499351,18cyclictest28366irq/58-eth023:10:143
631799351,26cyclictest4510-21ssh22:45:131
6325993419,8cyclictest6299-21cyclictest23:30:132
632599341,19cyclictest9242-21ssh22:30:122
630999336,23cyclictest26795-21ssh23:15:150
6309993328,3cyclictest121ksoftirqd/021:40:130
6309993328,3cyclictest10141-21sh21:55:150
632599320,21cyclictest24213-21ssh21:45:112
631799322,24cyclictest21673-21ssh23:30:121
631799321,22cyclictest19310-21sh22:00:141
6325993111,6cyclictest0-21swapper/200:37:182
630999306,9cyclictest131rcu_preempt21:25:140
632599299,15cyclictest27-21ksoftirqd/221:30:122
631799293,17cyclictest24326-21diskmemload21:45:131
630999294,23cyclictest16631-21ssh23:45:130
630999294,23cyclictest16631-21ssh23:45:130
632599282,20cyclictest0-21swapper/219:20:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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