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2026-02-05 - 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 #0, 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 rack0slot4s.osadl.org (updated Thu Feb 05, 2026 00:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
197207925654,1sleep110-21swapper/1119:06:093
197241525333,1sleep120-21swapper/1219:09:544
197215525047,2sleep30-21swapper/319:07:049
197210124930,2sleep90-21swapper/919:06:2315
197202624543,1sleep50-21swapper/519:05:2911
418998440,42rtkit-daemon0-21swapper/119:06:411
197293399420,17cyclictest2074842-21diskmemload21:39:380
197233824240,1sleep140-21swapper/1419:09:086
1972975994118,11cyclictest1617353-21thunderbird22:19:076
1972975994118,11cyclictest1617353-21thunderbird22:19:076
197233723836,1sleep130-21swapper/1319:09:075
197213723836,1sleep70-21swapper/719:06:5313
197236223735,1sleep100-21swapper/1019:09:202
197206823735,1sleep20-21swapper/219:05:598
197296399360,35cyclictest0-21swapper/1022:40:142
1972954993635,1cyclictest1972927-21cyclictest21:53:5813
197240923633,2sleep80-21swapper/819:09:5014
197224223634,1sleep00-21swapper/019:08:050
197297599354,18cyclictest0-21swapper/1420:51:146
197220323533,1sleep40-21swapper/419:07:3710
196889623533,1sleep150-21swapper/1519:05:087
197297599340,9cyclictest0-21swapper/1421:02:136
1972947993431,1cyclictest661irq_work/520:25:1411
197202823432,1sleep60-21swapper/619:05:3112
1972947993329,4cyclictest1774-21snmpd23:30:0611
1972963993229,1cyclictest2263254-21kworker/10:2+events00:00:272
1972963993229,1cyclictest2065997-21kworker/10:1+events21:32:042
197296399320,29cyclictest0-21swapper/1019:45:142
1972957993226,6cyclictest1774-21snmpd23:14:1714
197295499320,29cyclictest0-21swapper/700:00:1513
197294499320,3cyclictest1614972-21WRRende~kend#2022:00:1510
197293399320,32cyclictest0-21swapper/000:33:460
197297899310,30cyclictest2230608-21ssh23:09:027
197297899310,30cyclictest0-21swapper/1522:45:397
197297899310,30cyclictest0-21swapper/1519:58:387
197297899310,1cyclictest0-21swapper/1523:17:177
197297599310,30cyclictest0-21swapper/1421:59:186
1972965993128,2cyclictest1617353-21thunderbird20:31:273
1972963993130,1cyclictest2293985-21kworker/10:0+events00:26:112
1972963993130,1cyclictest2293985-21kworker/10:0+events00:06:172
1972963993130,1cyclictest2263254-21kworker/10:2+events23:52:312
1972963993130,1cyclictest2184578-21kworker/10:1+events23:26:512
1972963993130,1cyclictest2184578-21kworker/10:1+events23:22:512
1972963993130,1cyclictest2184578-21kworker/10:1+events23:09:172
1972963993130,1cyclictest2184578-21kworker/10:1+events22:58:152
1972963993130,1cyclictest2184578-21kworker/10:1+events22:33:502
1972963993130,1cyclictest2137765-21kworker/10:2+events22:06:032
1972963993130,1cyclictest2065997-21kworker/10:1+events21:45:242
1972963993130,1cyclictest2065997-21kworker/10:1+events21:25:522
1972963993130,1cyclictest1946987-21kworker/10:2+events20:51:422
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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