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2026-02-19 - 07:31
[ 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 #1, slot #6

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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  Intel
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack1slot6s.osadl.org (updated Thu Feb 19, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2587721040,5chrt15-21rcuc/022:42:070
89032990,6sleep18905-21grep20:41:301
2480799934,39cyclictest0-21swapper/221:31:222
2480799924,27cyclictest0-21swapper/220:31:462
2480799918,22cyclictest0-21swapper/222:18:032
2480799914,26cyclictest0-21swapper/220:19:502
2480799914,26cyclictest0-21swapper/220:19:502
2480799904,25cyclictest0-21swapper/223:06:302
2480799904,25cyclictest0-21swapper/223:06:302
2480799885,35cyclictest0-21swapper/219:48:462
2480799883,35cyclictest0-21swapper/220:49:332
2480799883,35cyclictest0-21swapper/218:51:282
24807998728,10cyclictest1818-21tr22:56:192
2480799865,25cyclictest0-21swapper/223:05:582
2480799865,25cyclictest0-21swapper/223:05:582
2480799865,23cyclictest0-21swapper/221:49:062
2480799863,25cyclictest0-21swapper/218:41:282
2480799854,25cyclictest0-21swapper/222:08:442
2480799853,20cyclictest0-21swapper/223:21:432
2480799844,26cyclictest0-21swapper/221:17:592
24807998431,10cyclictest20652-21taskset20:11:302
2480799834,36cyclictest0-21swapper/222:41:382
24807998329,12cyclictest0-21swapper/221:01:262
2480799823,27cyclictest0-21swapper/222:11:372
2480799813,31cyclictest0-21swapper/222:28:482
2480799813,24cyclictest0-21swapper/221:14:242
24807998120,12cyclictest0-21swapper/219:06:342
2480799804,25cyclictest0-21swapper/221:21:282
2480799803,41cyclictest0-21swapper/220:06:342
2480799786,24cyclictest0-21swapper/221:29:302
2480799784,27cyclictest0-21swapper/219:36:462
2480799784,27cyclictest0-21swapper/219:36:462
2480799773,27cyclictest0-21swapper/223:16:062
24807997728,13cyclictest0-21swapper/221:41:292
24807997728,13cyclictest0-21swapper/221:41:292
24807997632,9cyclictest27505-21tune2fs20:21:322
2480799763,25cyclictest0-21swapper/220:43:422
2480799754,35cyclictest0-21swapper/220:51:442
2480799754,26cyclictest0-21swapper/223:30:502
2480799754,22cyclictest0-21swapper/222:40:592
248599670,4rtkit-daemon2484-21rtkit-daemon22:29:333
2480899674,57cyclictest0-21swapper/321:56:303
2480699655,50cyclictest6005-21aten_r1power_po21:26:191
2480899645,52cyclictest6155-21sendmail_mailqu20:36:403
24806996446,9cyclictest21838-21ssh22:36:331
2480699643,55cyclictest0-21swapper/121:31:291
2480899634,52cyclictest0-21swapper/320:48:523
220482633,52sleep122177-21fschecks_time19:06:331
248599620,19rtkit-daemon2484-21rtkit-daemon19:30:483
2480899624,52cyclictest0-21swapper/323:16:183
24806996242,13cyclictest0-21swapper/120:06:391
24806996242,13cyclictest0-21swapper/119:46:251
2480199627,47cyclictest16803-21grep21:41:300
2480199627,47cyclictest16803-21grep21:41:300
2480899614,23cyclictest0-21swapper/321:04:173
2480799613,20cyclictest0-21swapper/221:37:342
2480199615,48cyclictest0-21swapper/020:11:260
2480199613,35cyclictest0-21swapper/021:33:440
40172604,48sleep10-21swapper/122:11:211
327432603,11sleep30-21swapper/320:28:593
2480899605,48cyclictest17284-21fschecks_time20:06:303
2480899605,37cyclictest0-21swapper/320:21:223
2480899604,49cyclictest0-21swapper/320:16:313
2480899604,49cyclictest0-21swapper/320:16:313
2480899604,48cyclictest0-21swapper/321:06:313
2480899604,11cyclictest11011-21unixbench_multi21:31:433
24808996021,21cyclictest30382-21if_eth022:01:293
2480899602,53cyclictest0-21swapper/323:05:463
2480899602,53cyclictest0-21swapper/323:05:463
2480699604,48cyclictest0-21swapper/120:29:271
2480699603,51cyclictest0-21swapper/123:21:021
24801996020,27cyclictest0-21swapper/023:33:440
2480899594,48cyclictest0-21swapper/322:48:353
2480899594,36cyclictest0-21swapper/322:59:363
2480899594,36cyclictest0-21swapper/322:34:153
2480899593,47cyclictest12642-21munin-node21:36:213
2480699594,48cyclictest0-21swapper/121:41:361
2480699594,48cyclictest0-21swapper/121:41:361
2480699593,50cyclictest0-21swapper/122:34:241
2480699593,50cyclictest0-21swapper/121:09:241
2480199594,47cyclictest0-21swapper/021:06:210
24801995911,13cyclictest0-21swapper/021:26:410
243442593,48sleep30-21swapper/323:29:213
2480899585,45cyclictest0-21swapper/321:21:443
2480899585,35cyclictest0-21swapper/322:55:093
2480899584,48cyclictest12544-21fschecks_time18:46:343
2480899584,47cyclictest0-21swapper/322:41:303
2480899584,46cyclictest0-21swapper/322:06:183
2480899584,46cyclictest0-21swapper/321:00:313
2480899584,46cyclictest0-21swapper/321:00:313
2480899584,28cyclictest0-21swapper/321:16:313
2480899583,49cyclictest0-21swapper/320:51:393
24808995824,14cyclictest0-21swapper/321:11:423
2480899582,9cyclictest0-21swapper/321:41:343
2480899582,9cyclictest0-21swapper/321:41:343
24808995818,24cyclictest0-21swapper/321:46:103
2480699583,49cyclictest0-21swapper/122:49:561
2480699583,49cyclictest0-21swapper/121:23:181
2480699583,47cyclictest0-21swapper/122:01:321
24806995819,10cyclictest26496-21processes23:31:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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