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2026-01-26 - 16:12
[ 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 Mon Jan 26, 2026 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22893062259187,24sleep00-21swapper/007:07:550
22893842238177,46sleep40-21swapper/407:09:044
22893902231167,22sleep10-21swapper/107:09:091
22892292221164,45sleep60-21swapper/607:06:496
22893292218162,18sleep50-21swapper/507:08:165
22891782216180,23sleep20-21swapper/207:06:032
22893782211176,22sleep70-21swapper/707:08:597
22891522209181,18sleep30-21swapper/307:05:413
23191312680,1sleep10-21swapper/108:00:001
2289870993024,5cyclictest0-21swapper/712:00:007
228986199290,28cyclictest2347978-21dump-pmu-power08:50:004
228986199290,28cyclictest2347978-21dump-pmu-power08:50:004
228984699270,2cyclictest2457366-21sleep12:00:000
228984699270,22cyclictest0-21swapper/009:25:140
228985899260,25cyclictest2397068-21idleruntime-cro10:15:013
228984699260,2cyclictest2360092-21apt-get09:10:120
228986399250,24cyclictest0-21swapper/508:45:115
228986399250,24cyclictest0-21swapper/508:45:105
228986199250,21cyclictest0-21swapper/412:10:114
228986199250,1cyclictest0-21swapper/411:45:114
228985899250,24cyclictest0-21swapper/309:40:123
228985099250,23cyclictest0-21swapper/112:15:001
228984699250,24cyclictest0-21swapper/012:05:110
228984699250,24cyclictest0-21swapper/010:55:100
228984699250,1cyclictest2431372-21perf11:14:590
228984699250,1cyclictest0-21swapper/008:30:000
228987099240,23cyclictest0-21swapper/707:55:127
228986799240,23cyclictest0-21swapper/610:15:016
228986799240,1cyclictest0-21swapper/611:55:126
228986399240,24cyclictest0-21swapper/510:10:015
228986399240,1cyclictest0-21swapper/508:15:005
2289861992420,3cyclictest0-21swapper/410:40:014
228986199240,23cyclictest0-21swapper/408:24:594
228985899240,1cyclictest0-21swapper/309:25:013
228985599240,23cyclictest2311006-21apt-get07:45:142
228985099240,23cyclictest2333705-21perf08:25:001
228984699240,1cyclictest2377068-21turbostat.cron09:40:010
228984699240,1cyclictest0-21swapper/008:10:120
2289870992323,0cyclictest0-21swapper/711:15:127
2289870992322,0cyclictest0-21swapper/711:50:127
2289870992321,1cyclictest2426082-21apt-get11:05:127
2289870992321,1cyclictest2411803-21apt-get10:40:117
2289870992321,1cyclictest0-21swapper/709:20:117
228987099230,22cyclictest0-21swapper/708:00:127
228987099230,0cyclictest0-21swapper/710:30:107
228986799230,22cyclictest2445916-21munin-run11:40:006
228986799230,22cyclictest2307692-21cron07:40:006
228986799230,22cyclictest2289835-21cyclictest09:05:136
228986399230,22cyclictest2331274-21http08:20:135
2289861992323,0cyclictest0-21swapper/409:55:104
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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