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2026-01-14 - 07:03
[ 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 #e, slot #8

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 rackeslot8s.osadl.org (updated Wed Jan 14, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7368049913230,1319cyclictest10550462sleep33
736804996461,640cyclictest951643-21sleep3
736804992760,273cyclictest1119890-21turbostat3
7908472181,3sleep00-21swapper/00
73680499188,6cyclictest932079-21sleep3
73680499176,7cyclictest8293032sleep33
301798170,3rtkit-daemon667-21lldpd2
301798170,3rtkit-daemon667-21lldpd2
73680499168,5cyclictest764934-21sleep3
73680499168,5cyclictest1067941-21turbostat3
736804991613,1cyclictest0-21swapper/33
736804991613,1cyclictest0-21swapper/33
736804991613,1cyclictest0-21swapper/33
301798160,2rtkit-daemon0-21swapper/22
73680499154,8cyclictest1035782-21taskset3
736804991513,1cyclictest0-21swapper/33
736804991513,1cyclictest0-21swapper/33
736804991513,1cyclictest0-21swapper/33
736804991512,1cyclictest0-21swapper/33
73680499151,11cyclictest874010-21taskset3
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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