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2026-01-29 - 02:16
[ 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 #3, slot #3

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 rack3slot3s.osadl.org (updated Thu Jan 29, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
255216421880,2sleep00-21swapper/021:30:490
2383044212657,64sleep30-21swapper/319:09:033
26995512980,2sleep00-21swapper/022:59:400
238283128960,13sleep00-21swapper/019:06:210
238300728555,10sleep10-21swapper/119:08:341
238297528469,9sleep20-21swapper/219:08:102
26403332330,2sleep10-21swapper/122:24:301
26218612271,10sleep12512175-21diskmemload22:12:241
2383238992420,2cyclictest0-21swapper/321:47:223
238323899241,18cyclictest2721906-21taskset23:10:343
238323899241,12cyclictest2596712-21chrt21:58:183
28284012236,8sleep12829915-21tr00:15:151
238323899232,13cyclictest2611884-21taskset22:05:383
2383238992320,1cyclictest0-21swapper/320:15:013
238323899231,18cyclictest0-21swapper/300:28:233
238323899222,12cyclictest2572017-21taskset21:44:313
2383238992219,1cyclictest0-21swapper/300:30:133
2383238992217,3cyclictest0-21swapper/323:20:173
2383238992212,7cyclictest67150irq/132-enp1s0-TxRx-322:31:243
238323899212,14cyclictest2588280-21taskset21:53:333
2383238992118,1cyclictest0-21swapper/320:55:163
2383238992117,2cyclictest0-21swapper/321:15:173
238323899211,15cyclictest2827132-21turbostat00:15:003
2383238992110,5cyclictest27294822sleep323:15:193
28145802201,5sleep02814680-21ntpq00:05:200
28145802201,5sleep02814680-21ntpq00:05:190
238323899208,9cyclictest2448197-21chrt20:08:073
238323899201,9cyclictest2637441-21chrt22:20:273
238323899201,15cyclictest0-21swapper/323:36:133
238323899201,14cyclictest0-21swapper/321:10:103
238323899201,14cyclictest0-21swapper/300:35:293
28499352191,2sleep20-21swapper/200:26:062
28413442191,4sleep02512175-21diskmemload00:20:470
238323899197,8cyclictest2552441-21taskset21:31:113
238323899192,12cyclictest2809184-21taskset00:03:533
238323899192,12cyclictest2809184-21taskset00:03:533
238323899192,11cyclictest2708697-21taskset23:05:113
2383238991916,1cyclictest0-21swapper/319:25:113
2383238991916,1cyclictest0-21swapper/300:21:063
2383238991915,2cyclictest0-21swapper/323:55:173
2383238991915,2cyclictest0-21swapper/323:40:123
2383238991915,2cyclictest0-21swapper/323:00:173
2383238991915,2cyclictest0-21swapper/321:25:133
238323899191,15cyclictest2689531-21chrt22:52:383
238323899191,14cyclictest2757617-21chrt23:33:073
238323899191,14cyclictest2432636-21sleep19:55:003
238323899191,14cyclictest0-21swapper/323:51:033
238323899191,14cyclictest0-21swapper/322:12:053
2383238991911,4cyclictest0-21swapper/321:20:193
238323899191,14cyclictest0-21swapper/320:54:563
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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