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2026-02-19 - 09:00
[ 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 #b, slot #7

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.

Note that this system runs a non-RT kernel.
Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackbslot7s.osadl.org (updated Thu Feb 19, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21800286815,800sleep020861-21/usr/sbin/munin22:15:050
21800286815,800sleep020861-21/usr/sbin/munin22:15:050
919027005,684sleep230374-1kworker/2:2H23:19:572
21536252017,478sleep321581-40ogrotate23:59:313
30484234060,266sleep130516-21irqstats22:44:541
27789233213,223sleep027796-21kworker/u8:000:19:310
264623176,273sleep02687-21basename22:59:520
264623176,273sleep02687-21basename22:59:520
19098231536,261sleep219076-21/usr/sbin/munin22:09:342
5881227120,232sleep15903-21idleruntime-cro19:44:321
6854226911,59sleep00-21swapper/019:45:040
27050225433,208sleep00-21swapper/019:09:420
2918722458,35sleep00-21swapper/022:40:010
281962234109,104sleep028234-21fschecks_count00:19:510
281962234109,104sleep028234-21fschecks_count00:19:510
32266223111,205sleep332330-21awk22:50:013
2781622200,103sleep127822-21kworker/u8:000:19:311
1708222043,85sleep026869-21cyclictest00:39:340
1708222043,85sleep026869-21cyclictest00:39:340
7959221411,117sleep00-21swapper/023:15:020
30176221146,114sleep030212-21ntp_kernel_pll_21:00:110
30176221146,114sleep030212-21ntp_kernel_pll_21:00:110
1417821977,175sleep014297-21date21:54:340
29867219214,163sleep229923-21interrupts00:24:542
20255219260,62sleep00-21swapper/020:29:500
23796219121,122sleep023945-21latency_hist22:24:340
645821909,23sleep00-21swapper/021:29:340
23169217644,49sleep00-21swapper/000:04:330
12499217223,126sleep212584-21fschecks_time20:04:522
416421716,45sleep00-21swapper/021:20:010
29872217016,65sleep329739-21/usr/sbin/munin21:00:063
29872217016,65sleep329739-21/usr/sbin/munin21:00:063
32665216910,141sleep032743-21mailstats19:25:010
1373921688,144sleep013888-21latency_hist20:09:350
28452216720,18sleep10-21swapper/122:39:331
3185216417,136sleep00-21swapper/021:18:480
30990216316,128sleep331128-21unixbench_singl22:45:053
17827216236,73sleep00-21swapper/023:45:030
14423215714,128sleep00-21swapper/021:54:500
25577215542,89sleep225616-21cut19:04:522
16080215519,37sleep00-21swapper/021:59:510
27349215114,112sleep127436-21latency19:09:551
11764214930,74sleep00-21swapper/020:00:140
16172214857,76sleep016320-21grep20:15:040
16172214857,76sleep016320-21grep20:15:040
14302214623,104sleep00-21swapper/020:09:550
31772214515,25sleep00-21swapper/021:04:590
26223214123,95sleep126251-21grep00:14:311
20376213932,91sleep00-21swapper/023:54:520
971213728,91sleep01005-21fschecks_count22:54:510
3113521337,77sleep00-21swapper/022:45:060
2858621329,108sleep028622-21ntpq20:54:580
801721318,109sleep07912-21cron21:34:350
6455213015,75sleep06560-21timerandwakeup23:10:340
2639821300,6sleep30-21swapper/320:49:353
24818213032,85sleep024822-21find20:44:440
14605212640,47sleep026869-21cyclictest23:35:010
24282212517,94sleep324298-21kernelversion22:24:543
9682212411,24sleep00-21swapper/023:20:150
789021240,12sleep30-21swapper/323:15:003
4856212417,53sleep00-21swapper/019:40:270
2651921248,58sleep00-21swapper/022:30:360
3643212320,83sleep13720-21fschecks_time21:19:501
25761212324,81sleep125822-21/usr/sbin/munin19:04:551
19932212013,60sleep020014-21latency_hist20:29:340
27978211920,46sleep00-21swapper/022:35:040
26663211916,84sleep126729-21sort20:50:101
5192211825,71sleep35250-21fschecks_count21:24:533
19840211842,46sleep00-21swapper/022:10:010
5904211717,66sleep25929-21systemd-run19:44:332
3991211728,42sleep20-21swapper/223:04:422
9350211421,76sleep39440-21fschecks_time19:54:523
8179211443,50sleep00-21swapper/019:50:000
1308321148,43sleep00-21swapper/023:30:170
22222211223,75sleep322240-21latency_hist22:19:333
22222211223,75sleep322240-21latency_hist22:19:333
19445211211,78sleep019602-21grep23:50:030
4228211143,24sleep04436-21cat19:39:340
31201211116,66sleep00-21swapper/000:29:450
10260211142,55sleep010328-21mailstats21:40:000
396211011,38sleep00-21swapper/021:09:440
8867210914,80sleep38989-21timerwakeupswit21:35:033
14436210820,71sleep314485-21awk23:34:563
11448210844,51sleep011595-21head23:25:040
12481210619,69sleep211996-21apt-get23:29:422
2430621058,38sleep00-21swapper/022:24:550
15319210523,60sleep215349-21systemctl23:39:312
14118210512,78sleep114175-21basename20:09:521
29113210412,76sleep229116-21sshd20:55:162
11688210313,15sleep20-21swapper/221:44:552
11688210313,15sleep20-21swapper/221:44:552
4015210111,75sleep026869-21cyclictest23:04:440
30157210130,37sleep00-21swapper/019:17:420
25977210127,58sleep326063-21cut19:05:013
21804210030,48sleep00-21swapper/020:34:510
2349929914,67sleep323510-21/usr/sbin/munin00:04:483
3265929824,52sleep3347-21latency_hist21:09:353
2505029818,64sleep225100-21if_eth020:44:542
2422329827,60sleep00-21swapper/020:40:160
464629715,65sleep14775-21timerwakeupswit23:05:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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