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2026-01-24 - 06:57
[ 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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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 rack3slot3s.osadl.org (updated Sat Jan 24, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3138661214061,75sleep30-21swapper/319:07:003
313888428959,9sleep10-21swapper/119:09:501
313877228158,20sleep20-21swapper/219:08:232
313869727858,14sleep00-21swapper/019:07:250
33012642430,2sleep20-21swapper/221:26:292
33012642430,2sleep20-21swapper/221:26:292
35792002360,2sleep2421rcuc/200:06:522
3139034992623,1cyclictest0-21swapper/322:55:003
313903499251,18cyclictest3258499-21taskset21:00:133
3139034992421,1cyclictest0-21swapper/300:25:003
3139034992421,1cyclictest0-21swapper/300:25:003
3139034992319,2cyclictest0-21swapper/321:15:173
313903499231,8cyclictest3545902-21taskset23:48:413
313903499231,18cyclictest3475874-21taskset23:08:243
313903499222,15cyclictest3521367-21chrt23:35:103
3139034992219,1cyclictest0-21swapper/320:00:163
3139034992219,1cyclictest0-21swapper/319:45:243
3139034992219,1cyclictest0-21swapper/300:20:003
35946892211,4sleep23594751-21ntpq00:15:192
33618842210,5sleep10-21swapper/122:01:361
3139034992118,1cyclictest0-21swapper/319:30:223
3139034992118,1cyclictest0-21swapper/300:25:233
3139034992117,2cyclictest0-21swapper/319:50:173
3139034992113,4cyclictest36225742sleep300:31:033
313903499211,17cyclictest3423067-21taskset22:37:183
313903499211,16cyclictest3538017-21taskset23:44:323
313903499211,15cyclictest3268403-21sleep21:10:003
313903499202,12cyclictest3310215-21taskset21:32:163
3139034992016,3cyclictest67150irq/132-enp1s0-TxRx-323:12:013
313903499201,15cyclictest0-21swapper/323:26:573
313903499201,15cyclictest0-21swapper/322:30:183
313903499201,14cyclictest0-21swapper/323:20:113
313903499200,16cyclictest67150irq/132-enp1s0-TxRx-321:46:563
313903499200,13cyclictest0-21swapper/322:44:143
334353921911,2sleep20-21swapper/221:50:282
313903499197,8cyclictest3379072-21taskset22:11:163
3139034991916,1cyclictest0-21swapper/322:00:153
3139034991916,1cyclictest0-21swapper/321:10:223
3139034991916,1cyclictest0-21swapper/319:55:163
3139034991915,2cyclictest0-21swapper/323:01:093
3139034991915,2cyclictest0-21swapper/320:15:233
313903499191,15cyclictest0-21swapper/322:47:393
313903499191,14cyclictest0-21swapper/323:50:113
313903499191,14cyclictest0-21swapper/322:17:293
313903499191,14cyclictest0-21swapper/321:25:193
313903499191,14cyclictest0-21swapper/321:25:193
313903499191,14cyclictest0-21swapper/300:08:183
313903499190,2cyclictest0-21swapper/300:10:543
36179282181,8sleep03619142-21cat00:30:160
33621192181,4sleep23362133-21ssh22:01:542
3139034991816,1cyclictest0-21swapper/321:40:163
3139034991816,1cyclictest0-21swapper/321:20:123
3139034991815,1cyclictest0-21swapper/321:50:233
3139034991815,1cyclictest0-21swapper/320:10:243
3139034991814,2cyclictest0-21swapper/319:40:153
3139034991812,3cyclictest3406574-21taskset22:28:323
3139034991812,3cyclictest3406574-21taskset22:28:323
3139034991812,3cyclictest0-21swapper/322:20:343
313903499181,14cyclictest0-21swapper/323:33:283
313903499181,14cyclictest0-21swapper/300:35:463
313903499181,13cyclictest0-21swapper/323:55:473
313903499180,15cyclictest0-21swapper/300:02:503
313903499180,14cyclictest0-21swapper/323:16:223
313903499180,14cyclictest0-21swapper/321:37:033
36046632170,8sleep23604675-21ssh00:20:442
36046632170,8sleep23604675-21ssh00:20:442
35206842171,4sleep03520729-21perf23:35:000
34842662171,3sleep13268382-21diskmemload23:13:001
34749452171,2sleep20-21swapper/223:07:122
34422942171,3sleep20-21swapper/222:49:522
33800052171,4sleep23380017-21ssh22:12:322
33263922171,7sleep03268382-21diskmemload21:40:350
32403982171,11sleep13240451-21ntpq20:40:201
313903499171,3cyclictest0-21swapper/322:57:033
3139034991713,2cyclictest0-21swapper/320:30:213
313903499171,12cyclictest3220910-21chrt20:25:133
313903499171,12cyclictest0-21swapper/321:55:123
313903499171,12cyclictest0-21swapper/320:05:333
313903499170,13cyclictest0-21swapper/322:05:093
35604862161,10sleep13560503-21sensors_temp23:55:251
35526262161,9sleep03268382-21diskmemload23:51:070
35295272161,10sleep23529540-21rm23:39:472
33178382161,10sleep23268382-21diskmemload21:35:482
32744842161,2sleep20-21swapper/221:11:312
31519992161,10sleep03152122-21cut19:20:150
313903499161,13cyclictest0-21swapper/319:28:413
313903499161,12cyclictest0-21swapper/319:15:113
313903499160,13cyclictest0-21swapper/320:35:163
313903499160,13cyclictest0-21swapper/320:20:163
35727802151,4sleep13572795-21ssh00:04:511
35443762150,9sleep13268382-21diskmemload23:46:311
35096682150,1sleep20-21swapper/223:26:482
35003602151,3sleep20-21swapper/223:20:592
34729502151,4sleep13473002-21ntpq23:05:191
34602092151,9sleep13459898-21/usr/sbin/munin23:00:141
34058342151,9sleep23405847-21rm22:27:362
34058342151,9sleep23405847-21rm22:27:362
33654962151,10sleep23366588-21tr22:05:152
32868592151,2sleep03286895-21ssh21:20:110
313903499151,8cyclictest3236384-21taskset20:40:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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