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2026-01-23 - 22:38
[ 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 100 highest latencies:
System rackcslot8s.osadl.org (updated Fri Jan 23, 2026 12:46:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12379917080,7cyclictest83192irq/26-enp1s0-T12:27:416
12379912522,44cyclictest0-21swapper/612:24:136
111391980,0ptp4l0-21swapper/412:25:494
1229998425,0cyclictest0-21swapper/512:28:525
1229997337,0cyclictest0-21swapper/512:24:135
1192996663,1cyclictest799-21NetworkManager12:23:440
1209996233,29cyclictest11252-21kworker/2:112:26:302
1222996160,0cyclictest0-21swapper/412:24:134
111391610,5ptp4l0-21swapper/407:05:034
111391610,5ptp4l0-21swapper/007:06:480
224572600,0sleep30-21swapper/311:30:143
111391600,29ptp4l0-21swapper/107:08:511
51925735,7sleep20-21swapper/207:05:332
1881915735,7phc2sys0-21swapper/507:05:345
189892560,0sleep50-21swapper/510:30:005
1243995616,39cyclictest0-21swapper/712:24:147
78725545,6sleep70-21swapper/707:08:357
41422550,0sleep60-21swapper/612:35:146
1192995454,0cyclictest37150irq/28-ahci[00012:26:280
68725332,7sleep30-21swapper/307:07:343
1209995126,24cyclictest28372-21kworker/2:212:23:452
244652500,1sleep724472-21munin-plugin-st09:09:597
80124938,6sleep60-21swapper/607:08:426
124399490,48cyclictest0-21swapper/712:26:447
1201994615,15cyclictest0-21swapper/112:25:341
1201994429,14cyclictest799-21NetworkManager12:23:431
1216993633,2cyclictest1061-21snmpd12:23:443
111391330,0ptp4l0-21swapper/510:55:115
111391330,0ptp4l0-21swapper/510:00:125
111391330,0ptp4l0-21swapper/409:20:214
111391320,1ptp4l23905-21users09:50:190
111391320,0ptp4l0-21swapper/409:00:154
111391310,0ptp4l0-21swapper/412:12:444
111391310,0ptp4l0-21swapper/411:55:134
111391310,0ptp4l0-21swapper/408:35:184
111391310,0ptp4l0-21swapper/407:50:144
111391310,0ptp4l0-21swapper/012:00:400
111391310,0ptp4l0-21swapper/010:56:410
111391310,0ptp4l0-21swapper/010:01:180
111391310,0ptp4l0-21swapper/009:31:230
111391310,0ptp4l0-21swapper/008:35:130
111391300,0ptp4l0-21swapper/511:10:215
111391300,0ptp4l0-21swapper/510:42:095
111391300,0ptp4l0-21swapper/412:33:234
111391300,0ptp4l0-21swapper/411:32:454
111391300,0ptp4l0-21swapper/409:50:174
111391300,0ptp4l0-21swapper/311:03:163
111391300,0ptp4l0-21swapper/112:31:131
111391300,0ptp4l0-21swapper/109:10:341
111391300,0ptp4l0-21swapper/012:19:290
111391300,0ptp4l0-21swapper/008:18:160
111391300,0ptp4l0-21swapper/008:10:180
111391300,0ptp4l0-21swapper/008:10:180
111391300,0ptp4l0-21swapper/007:50:180
1216992912,16cyclictest799-21NetworkManager12:27:413
111391290,0ptp4l10289-21ssh09:33:221
111391290,0ptp4l0-21swapper/512:35:395
111391290,0ptp4l0-21swapper/511:21:275
111391290,0ptp4l0-21swapper/509:52:245
111391290,0ptp4l0-21swapper/509:24:595
111391290,0ptp4l0-21swapper/412:36:224
111391290,0ptp4l0-21swapper/412:09:254
111391290,0ptp4l0-21swapper/412:00:114
111391290,0ptp4l0-21swapper/411:28:444
111391290,0ptp4l0-21swapper/410:49:164
111391290,0ptp4l0-21swapper/410:49:154
111391290,0ptp4l0-21swapper/410:02:024
111391290,0ptp4l0-21swapper/211:26:442
111391290,0ptp4l0-21swapper/110:59:101
111391290,0ptp4l0-21swapper/110:11:351
111391290,0ptp4l0-21swapper/012:36:130
111391290,0ptp4l0-21swapper/009:42:510
111391280,4ptp4l0-21swapper/511:51:445
111391280,0ptp4l0-21swapper/512:31:335
111391280,0ptp4l0-21swapper/511:42:165
111391280,0ptp4l0-21swapper/511:29:565
111391280,0ptp4l0-21swapper/508:20:205
111391280,0ptp4l0-21swapper/507:23:155
111391280,0ptp4l0-21swapper/409:46:454
111391280,0ptp4l0-21swapper/409:26:304
111391280,0ptp4l0-21swapper/408:10:184
111391280,0ptp4l0-21swapper/408:10:184
111391280,0ptp4l0-21swapper/408:00:204
111391280,0ptp4l0-21swapper/110:32:371
111391280,0ptp4l0-21swapper/110:27:121
111391280,0ptp4l0-21swapper/109:46:041
111391280,0ptp4l0-21swapper/109:37:131
111391280,0ptp4l0-21swapper/010:14:280
111391270,3ptp4l0-21swapper/510:48:245
111391270,3ptp4l0-21swapper/510:48:235
111391270,3ptp4l0-21swapper/410:16:484
111391270,0ptp4l0-21swapper/611:26:396
111391270,0ptp4l0-21swapper/609:44:556
111391270,0ptp4l0-21swapper/509:45:355
111391270,0ptp4l0-21swapper/508:58:175
111391270,0ptp4l0-21swapper/411:07:564
111391270,0ptp4l0-21swapper/411:00:064
111391270,0ptp4l0-21swapper/409:35:214
111391270,0ptp4l0-21swapper/409:15:154
111391270,0ptp4l0-21swapper/407:10:184
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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