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2026-02-28 - 05:08
[ 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 #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 Sat Feb 28, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25080268915,660sleep125111-21/usr/sbin/munin21:49:241
158922295105,170sleep316040-21unixbench_singl21:19:313
158922295105,170sleep316040-21unixbench_singl21:19:313
6432227914,248sleep16489-21interrupts19:09:211
928223717,48sleep3931-21cron23:58:593
21297223168,145sleep321448-21grep19:54:313
1749222197,201sleep23780-1kworker/2:0H19:44:052
17362221314,181sleep117402-21modprobe23:09:001
23842220819,168sleep323935-21fschecks_time20:04:203
2414622009,177sleep024182-21ntpq20:04:250
27397219020,133sleep36012-21cyclictest20:14:293
26856218713,159sleep226934-21find21:54:292
2918218512,153sleep32942-21latency_hist22:24:013
7467217711,153sleep37511-21ntp_kernel_pll_20:54:253
14792217615,143sleep314379-21/usr/sbin/munin19:34:253
14792217615,143sleep314379-21/usr/sbin/munin19:34:253
820321759,22sleep30-21swapper/300:19:263
820321759,22sleep30-21swapper/300:19:263
10502217215,139sleep310593-21xargs22:45:003
7584216913,131sleep30-21swapper/319:14:033
21181216917,21sleep30-21swapper/323:19:483
9656216811,132sleep30-21swapper/300:24:223
17413216515,123sleep30-21swapper/323:09:023
26012215938,25sleep30-21swapper/321:54:023
13276215738,101sleep312359-21/usr/sbin/munin00:34:323
25344215617,123sleep30-21swapper/320:09:173
19355215612,20sleep30-21swapper/323:14:193
76982155119,16sleep30-21swapper/322:39:033
11575215414,125sleep111655-21cat19:24:221
2238421508,127sleep322444-21if_eth019:59:203
17526215025,23sleep00-21swapper/019:44:150
9558214915,106sleep39750-21gpgv22:44:033
25377214715,114sleep30-21swapper/323:34:013
28567214610,14sleep30-21swapper/323:44:023
14146214313,117sleep314227-21ls21:14:313
30252214115,105sleep030341-21/usr/sbin/munin20:24:230
10603213917,107sleep210569-21latency_hist00:29:022
5149213722,99sleep35242-21mailstats19:04:353
917221368,29sleep39258-21tr20:59:293
1351621369,103sleep30-21swapper/322:54:293
5859213519,101sleep25869-21modprobe00:14:002
8063212815,98sleep08145-21switchtime19:14:120
435321287,22sleep30-21swapper/320:44:243
10220212811,95sleep30-21swapper/319:19:283
3066521279,103sleep330753-21tune2fs23:49:193
1192821278,58sleep312020-21mailstats22:49:283
31606212655,13sleep30-21swapper/320:29:193
611212412,65sleep30-21swapper/320:34:033
611212412,65sleep30-21swapper/320:34:033
52921248,96sleep3609-21mailstats22:14:283
11312212486,21sleep30-21swapper/300:29:273
4867212213,18sleep00-21swapper/000:09:220
20626212213,88sleep220786-21wc23:19:022
2882921218,11sleep30-21swapper/320:19:263
5219212015,52sleep15291-21mailstats22:29:281
3021621209,13sleep30-21swapper/320:24:223
13335212010,18sleep30-21swapper/321:14:023
13387211956,39sleep30-21swapper/319:29:293
13387211956,39sleep30-21swapper/319:29:293
26349211822,76sleep126513-21grep23:34:311
1728421178,96sleep317325-21cut19:44:023
2436211511,70sleep32496-21cpuspeed20:39:163
27599211410,91sleep327704-21date21:59:023
3051921137,72sleep30-21swapper/322:07:183
1964821129,16sleep10-21swapper/123:14:251
1765021129,17sleep30-21swapper/323:09:143
3092221119,15sleep30-21swapper/322:09:113
1258121105,93sleep00-21swapper/022:52:400
12469211017,79sleep212555-21cut00:34:182
719821097,69sleep30-21swapper/300:16:073
719821097,69sleep30-21swapper/300:16:073
6033210910,62sleep30-21swapper/322:34:023
24387210911,30sleep10-21swapper/123:29:221
1820321098,59sleep30-21swapper/319:44:303
1303210822,64sleep2222-21systemd-journal22:18:592
16286210713,79sleep216340-21if_err_eth023:04:212
3024021065,11sleep30-21swapper/323:48:223
16747210612,78sleep016878-21timerwakeupswit23:04:310
2881210513,79sleep12891-21ntpq20:39:261
28300210511,78sleep228332-21/usr/sbin/munin21:59:302
9321210419,58sleep19451-21timerwakeupswit20:59:321
2187321038,13sleep30-21swapper/321:39:573
1918621035,12sleep30-21swapper/321:29:483
17078210355,36sleep317122-21ntpq21:24:233
10596210312,74sleep010734-21unixbench_multi22:45:010
607621028,55sleep30-21swapper/320:49:293
509921027,58sleep30-21swapper/300:09:293
20468210229,50sleep020469-21cron23:19:000
155721017,54sleep30-21swapper/323:59:243
155721017,54sleep30-21swapper/323:59:243
2072721006,60sleep30-21swapper/321:34:443
87672997,58sleep30-21swapper/319:14:313
219429920,63sleep12232-21cat20:39:011
219429920,63sleep12232-21cat20:39:011
2158229911,71sleep221104-21apt-get21:39:072
200822995,16sleep30-21swapper/319:50:483
1865329912,72sleep00-21swapper/023:10:400
35932986,54sleep30-21swapper/322:24:253
225452986,53sleep30-21swapper/323:24:123
1044329837,37sleep210499-21mailstats22:44:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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