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2026-02-12 - 17:54
[ 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 #c, slot #8

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 rackcslot8s.osadl.org (updated Thu Feb 12, 2026 12:46:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
297242650,0sleep60-21swapper/610:00:166
111391630,5ptp4l0-21swapper/407:05:124
179702610,0sleep50-21swapper/507:45:115
111391610,5ptp4l0-21swapper/007:07:290
20252580,0sleep50-21swapper/511:36:135
154382570,0sleep10-21swapper/108:50:111
124622560,0sleep30-21swapper/311:50:213
3261125544,7sleep20-21swapper/207:06:162
31125534,6sleep60-21swapper/607:08:286
3099325343,6sleep70-21swapper/707:05:107
111391480,0ptp4l2041-21sh11:36:161
43224736,7sleep30-21swapper/307:09:473
3259624635,6sleep50-21swapper/507:06:035
3257224535,6sleep10-21swapper/107:05:431
111391340,0ptp4l0-21swapper/409:55:214
111391310,0ptp4l0-21swapper/410:56:424
111391310,0ptp4l0-21swapper/011:00:130
111391310,0ptp4l0-21swapper/009:17:540
111391310,0ptp4l0-21swapper/007:10:130
111391300,0ptp4l0-21swapper/411:00:194
111391300,0ptp4l0-21swapper/109:31:411
111391300,0ptp4l0-21swapper/011:45:000
111391300,0ptp4l0-21swapper/010:05:150
111391290,1ptp4l12587-21ssh10:20:300
111391290,0ptp4l0-21swapper/410:32:434
111391290,0ptp4l0-21swapper/409:45:284
111391290,0ptp4l0-21swapper/012:31:180
111391290,0ptp4l0-21swapper/012:17:550
111391290,0ptp4l0-21swapper/011:13:400
111391280,0ptp4l0-21swapper/411:31:214
111391280,0ptp4l0-21swapper/411:18:324
111391280,0ptp4l0-21swapper/411:10:494
111391280,0ptp4l0-21swapper/409:50:334
111391280,0ptp4l0-21swapper/409:18:224
111391280,0ptp4l0-21swapper/310:48:103
111391280,0ptp4l0-21swapper/111:49:431
111391280,0ptp4l0-21swapper/010:48:510
111391280,0ptp4l0-21swapper/010:37:570
111391270,0ptp4l24063-21diskmemload09:40:123
111391270,0ptp4l0-21swapper/709:15:237
111391270,0ptp4l0-21swapper/510:57:475
111391270,0ptp4l0-21swapper/412:29:264
111391270,0ptp4l0-21swapper/412:08:594
111391270,0ptp4l0-21swapper/412:08:584
111391270,0ptp4l0-21swapper/410:28:394
111391270,0ptp4l0-21swapper/410:15:214
111391270,0ptp4l0-21swapper/410:10:144
111391270,0ptp4l0-21swapper/407:15:204
111391270,0ptp4l0-21swapper/310:53:483
111391270,0ptp4l0-21swapper/110:27:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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