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2026-02-25 - 11:08
[ 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
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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack1slot6s.osadl.org (updated Wed Feb 25, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
193512900,3sleep041ktimersoftd/021:05:450
14230998335,27cyclictest14501-21gltestperf21:45:503
6432810,13sleep11422899cyclictest22:14:071
14230998128,32cyclictest22136-21crond21:10:313
14230997929,42cyclictest21442-21latency21:55:513
14230997719,49cyclictest0-21swapper/323:05:023
14230997719,33cyclictest0-21swapper/319:25:533
187302750,16sleep2281ktimersoftd/221:05:192
14230997530,27cyclictest8181-21aten_r1power_cu22:25:393
14230997529,39cyclictest11853-21timerandwakeup21:41:033
14230997527,40cyclictest0-21swapper/321:35:593
14230997518,42cyclictest0-21swapper/322:06:263
14230997429,29cyclictest32223-21munin-run21:25:313
14230997429,28cyclictest5530-21grep19:55:523
14230997429,28cyclictest5530-21grep19:55:523
14230997428,29cyclictest13128-21fschecks_time20:55:503
14230997329,27cyclictest7229-21cut18:51:033
14230997329,26cyclictest18995-21turbostat.cron18:10:383
14230997229,37cyclictest3163-21gltestperf20:40:523
14230997229,37cyclictest3163-21gltestperf20:40:523
14230997226,28cyclictest5054-21cpuspeed22:20:413
14230997223,17cyclictest8669-21sendmail_mailqu20:01:053
14230997222,17cyclictest0-21swapper/322:39:433
14230997221,44cyclictest0-21swapper/323:10:523
14230997129,26cyclictest4748-21missed_timers21:30:553
14230997128,36cyclictest17929-21unixbench-2d23:25:593
14230997126,29cyclictest0-21swapper/320:05:453
14230997126,26cyclictest26600-21ssh21:15:503
14230997126,26cyclictest26600-21ssh21:15:503
14230997123,32cyclictest0-21swapper/322:57:583
1422999714,46cyclictest0-21swapper/223:03:382
14230997027,26cyclictest623-21yum20:36:083
14230997027,26cyclictest1419-21runrttasks18:46:113
14230997025,38cyclictest13038-21ssh22:31:003
14230997025,29cyclictest18036-21iostat_ios21:50:543
14230997024,29cyclictest20836-21ssh22:43:363
14230997024,29cyclictest20836-21ssh22:43:363
14230997022,40cyclictest7402-21ssh20:46:053
14230997016,35cyclictest0-21swapper/320:15:453
14230996925,37cyclictest13606-21fschecks_time23:20:463
14230996923,30cyclictest16308-21diskstats21:00:483
14230996922,38cyclictest1099-21iostat21:25:543
14230996921,40cyclictest0-21swapper/318:25:383
14230996921,32cyclictest0-21swapper/320:26:593
14230996921,29cyclictest0-21swapper/320:52:003
14230996917,34cyclictest0-21swapper/320:20:463
14230996916,46cyclictest0-21swapper/321:10:393
1423099689,52cyclictest0-21swapper/322:49:413
14230996826,35cyclictest704-21gltestperf19:45:543
14230996824,36cyclictest13871-21fschecks_count19:05:533
14230996823,29cyclictest0-21swapper/322:15:553
14230996822,39cyclictest30464-21ssh22:10:403
14230996819,43cyclictest0-21swapper/323:18:213
14230996723,35cyclictest20426-21needreboot18:11:013
14230996722,38cyclictest26166-21cat22:50:533
14230996717,42cyclictest0-21swapper/318:15:563
14230996625,26cyclictest24607-21hddtemp_smartct22:00:493
14230996625,26cyclictest24607-21hddtemp_smartct22:00:493
14230996624,35cyclictest29708-21users20:31:063
14230996623,27cyclictest2829-21rm23:05:383
14230996621,29cyclictest0-21swapper/318:35:493
14230996619,32cyclictest0-21swapper/320:10:463
14230996512,45cyclictest0-21swapper/318:01:023
1422999654,54cyclictest0-21swapper/221:50:522
14230996424,33cyclictest16630-21iostat_ios19:10:593
14230996424,25cyclictest27703-21pluginstate18:26:063
1422999648,49cyclictest281ktimersoftd/222:43:242
1422999648,49cyclictest281ktimersoftd/222:43:242
14230996317,39cyclictest0-21swapper/318:30:583
14229996326,30cyclictest15392-21unixbench_multi21:46:032
309352624,13sleep20-21swapper/219:40:552
14230996224,32cyclictest27825-21cpuspeed_turbos19:35:483
14230996221,34cyclictest0-21swapper/319:50:483
14230996214,41cyclictest0-21swapper/319:43:173
14230996214,41cyclictest0-21swapper/318:41:063
14229996221,34cyclictest0-21swapper/222:21:392
154362613,50sleep20-21swapper/221:00:322
14230996127,28cyclictest19741-21unixbench_singl19:16:083
14230996127,28cyclictest19741-21unixbench_singl19:16:083
37542603,50sleep20-21swapper/222:17:352
240652602,20sleep20-21swapper/222:48:112
14230996023,31cyclictest0-21swapper/319:04:083
15102594,47sleep10-21swapper/118:40:531
14230995911,41cyclictest0-21swapper/319:21:073
14229995942,11cyclictest7750-21tail18:51:122
1422699595,28cyclictest0-21swapper/020:20:540
14226995921,23cyclictest0-21swapper/023:01:130
14230995825,27cyclictest10179-21unixbench_singl18:56:103
1422999588,40cyclictest0-21swapper/222:55:282
1422999584,23cyclictest0-21swapper/220:14:172
1422999583,41cyclictest0-21swapper/223:09:282
1422699583,49cyclictest0-21swapper/022:16:240
14230995722,28cyclictest0-21swapper/319:35:253
14228995723,8cyclictest22829-21unixbench_multi20:21:071
1422699575,35cyclictest0-21swapper/020:09:140
264812563,45sleep00-21swapper/021:15:500
264812563,45sleep00-21swapper/021:15:500
1422999568,30cyclictest0-21swapper/220:17:272
1422999568,29cyclictest0-21swapper/222:03:002
1422999568,29cyclictest0-21swapper/222:03:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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