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2026-01-29 - 17:34
[ 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 #8, 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 50 highest latencies:
System rack8slot4s.osadl.org (updated Thu Jan 29, 2026 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7666672234175,47sleep10-21swapper/107:09:001
7665482228171,46sleep30-21swapper/307:07:173
7667112227174,17sleep60-21swapper/607:09:376
7666522222163,45sleep40-21swapper/407:08:474
7665542221188,21sleep00-21swapper/007:07:210
7667032215179,22sleep70-21swapper/707:09:297
7664732205177,18sleep20-21swapper/207:06:112
7667102202168,21sleep50-21swapper/507:09:365
76696899270,22cyclictest0-21swapper/107:50:101
766984992621,4cyclictest0-21swapper/607:50:106
76698499260,21cyclictest0-21swapper/608:50:026
76697499250,24cyclictest842944-21cron09:20:003
76698699240,2cyclictest825665-21taskset08:50:027
766984992419,4cyclictest857514-21munin-run09:45:006
76698499240,23cyclictest866509-21apt-get10:00:116
76697999240,23cyclictest0-21swapper/509:45:125
76697499240,1cyclictest0-21swapper/311:25:123
766968992422,2cyclictest0-21swapper/109:20:101
766968992419,5cyclictest920627-21turbostat.cron11:35:001
766986992323,0cyclictest0-21swapper/710:55:127
766986992322,1cyclictest880792-21apt-get10:25:127
766986992321,1cyclictest788038-21apt-get07:45:127
76698699230,23cyclictest937783-21idleruntime-cro12:05:007
76698699230,23cyclictest0-21swapper/709:20:027
766984992320,2cyclictest690-21gdbus10:19:596
766984992320,2cyclictest0-21swapper/610:10:106
76698499230,22cyclictest869361-21apt-get10:05:126
76698499230,22cyclictest0-21swapper/611:55:126
76698499230,0cyclictest0-21swapper/608:10:116
766979992321,1cyclictest883644-21apt-get10:30:125
766979992321,1cyclictest840514-21apt-get09:15:135
766979992320,2cyclictest888918-21sh10:40:005
76697999230,22cyclictest0-21swapper/512:15:105
766977992322,1cyclictest897760-21idleruntime-cro10:54:594
766977992322,1cyclictest0-21swapper/412:40:004
76697799230,22cyclictest819317-21awk08:40:014
76697499230,22cyclictest866109-21awk10:00:003
76697299230,22cyclictest906354-21perf11:10:002
76697299230,22cyclictest0-21swapper/212:20:142
76697299230,22cyclictest0-21swapper/211:40:122
76697299230,22cyclictest0-21swapper/207:25:122
766968992320,3cyclictest0-21swapper/109:25:111
766968992319,3cyclictest0-21swapper/108:30:001
76696899230,1cyclictest0-21swapper/111:00:001
76696899230,0cyclictest0-21swapper/111:40:181
766963992321,1cyclictest863635-21apt-get09:55:120
76698699220,22cyclictest0-21swapper/711:05:117
76698699220,21cyclictest0-21swapper/711:20:117
76698699220,21cyclictest0-21swapper/710:30:127
76698699220,21cyclictest0-21swapper/708:25:127
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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