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2026-02-05 - 02:33
[ 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 Feb 05, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2025676212859,64sleep30-21swapper/319:08:273
202560628656,9sleep10-21swapper/119:07:331
202566328360,6sleep00-21swapper/019:08:160
202553127559,10sleep20-21swapper/219:06:342
2025922992824,2cyclictest0-21swapper/319:15:003
202592299251,10cyclictest2101866-21taskset20:20:013
24202872241,8sleep02154510-21diskmemload23:49:030
23200462241,11sleep02154510-21diskmemload22:48:140
202592299241,18cyclictest2338209-21chrt23:00:113
202592299241,18cyclictest2335396-21taskset22:56:223
24626422231,8sleep02154510-21diskmemload00:15:140
202592299232,13cyclictest2259543-21taskset22:10:363
2025922992320,1cyclictest0-21swapper/322:25:003
23364352221,5sleep02154510-21diskmemload22:58:000
202592299221,8cyclictest2477220-21taskset00:22:453
2025922992218,2cyclictest0-21swapper/321:35:143
2025922992118,1cyclictest0-21swapper/320:50:013
2025922992117,2cyclictest0-21swapper/322:45:013
2025922992117,2cyclictest0-21swapper/300:10:123
2025922992115,3cyclictest0-21swapper/300:00:263
202592299211,15cyclictest2437552-21chrt23:59:523
25026822201,12sleep22154510-21diskmemload00:38:162
24517782201,9sleep02154510-21diskmemload00:06:360
23869182201,2sleep10-21swapper/123:28:401
22254682201,6sleep12225516-21ntpq21:50:181
202592299202,12cyclictest2450093-21taskset00:05:173
2025922992017,1cyclictest0-21swapper/321:25:173
2025922992017,1cyclictest0-21swapper/320:40:133
2025922992015,2cyclictest0-21swapper/323:50:273
202592299201,15cyclictest2487154-21turbostat00:30:003
202592299201,14cyclictest0-21swapper/322:25:133
202592299192,12cyclictest2195173-21taskset21:33:523
202592299192,11cyclictest2392807-21taskset23:30:253
2025922991917,1cyclictest0-21swapper/321:45:163
2025922991916,2cyclictest0-21swapper/322:45:233
2025922991915,2cyclictest0-21swapper/322:05:173
2025922991915,2cyclictest0-21swapper/300:15:143
2025922991913,4cyclictest0-21swapper/322:00:133
202592299191,15cyclictest0-21swapper/323:28:103
202592299191,14cyclictest2413339-21chrt23:45:133
202592299191,14cyclictest2367792-21chrt23:15:343
202592299191,14cyclictest2229490-21chrt21:55:043
202592299191,14cyclictest2226662-21chrt21:51:033
202592299191,14cyclictest0-21swapper/323:21:313
202592299191,14cyclictest0-21swapper/323:10:173
202592299191,14cyclictest0-21swapper/322:51:133
202592299191,14cyclictest0-21swapper/300:35:153
24845652181,4sleep02154510-21diskmemload00:26:210
21772482181,3sleep00-21swapper/021:21:590
21694322181,3sleep10-21swapper/121:17:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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