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2026-02-11 - 09:58
[ 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 Wed Feb 11, 2026 00:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14490253819,5360sleep26624-21kworker/2:022:07:252
14490253819,5360sleep26624-21kworker/2:022:07:252
25467280322,767sleep124913-21kworker/u8:019:20:201
85826817,656sleep1194-1kworker/1:2H19:45:041
2743239911,370sleep12827-21fw_packets19:50:211
2834023179,270sleep228488-21latency_hist19:30:022
18839231151,73sleep20-21swapper/222:20:302
8682229513,265sleep28815-21grep23:30:322
1981122697,252sleep0362-21snmpd00:06:130
312522658,183sleep23219-21grep19:50:302
16268226261,185sleep216309-21apt-config22:15:002
743225439,200sleep2797-21cpuspeed21:25:172
11011225032,206sleep211055-21ntp_kernel_err20:15:262
11011225032,206sleep211055-21ntp_kernel_err20:15:262
24112224846,147sleep224173-21sendmail_mailqu19:15:282
2923722429,195sleep229214-21latency_hist22:55:022
4498221054,72sleep24529-21fschecks_count19:55:232
6101220838,112sleep26128-21modprobe23:24:592
32681220214,29sleep20-21swapper/223:05:162
2711921917,165sleep00-21swapper/000:30:280
195921898,168sleep21640-21apt.systemd.dai19:45:372
21277218210,158sleep221422-21modprobe22:30:022
21277218210,158sleep221422-21modprobe22:30:022
23739217835,118sleep20-21swapper/222:35:322
25939216626,119sleep125960-21grep21:05:001
18118216347,75sleep20-21swapper/222:20:012
17724215817,43sleep20-21swapper/220:35:372
26771215410,100sleep226850-21latency_hist19:25:012
4173215330,60sleep20-21swapper/221:35:222
22931215243,94sleep222960-21sh19:15:002
23540215065,41sleep20-21swapper/200:20:122
15411215065,20sleep20-21swapper/220:30:242
10775214757,71sleep20-21swapper/221:55:302
29660214678,54sleep229715-21if_err_eth022:55:232
22124214518,104sleep20-21swapper/220:50:312
60572142105,23sleep16059-21sshd23:24:251
23177213912,111sleep023181-21diskstats20:55:180
32374213751,48sleep232506-21grep21:20:322
32374213751,48sleep232506-21grep21:20:322
30566213624,59sleep20-21swapper/219:35:272
26461213627,20sleep10-21swapper/121:05:121
20379213684,40sleep220419-21uname22:25:302
18038213620,97sleep018051-21kworker/u8:422:19:590
5748213315,97sleep15873-21latency_hist20:00:021
30189213116,100sleep130328-21unixbench_singl22:55:341
23608213121,89sleep123627-21apt-get19:15:111
2886213014,99sleep32594-21/usr/sbin/munin19:50:233
25070212955,35sleep20-21swapper/200:25:132
13231212916,90sleep10-21swapper/122:05:021
13231212916,90sleep10-21swapper/122:05:021
29533212713,98sleep029590-21apt-config21:15:010
29533212713,98sleep029590-21apt-config21:15:010
28959212750,43sleep228997-21ntpq19:30:272
13143212746,45sleep212197-21/usr/sbin/munin20:20:392
1261021278,55sleep20-21swapper/223:45:142
18610212648,43sleep218609-21munin-run00:05:012
14737212646,45sleep214820-21sed23:50:322
29554212414,95sleep329560-21diskstats22:55:203
27249212425,85sleep227331-21grep00:30:302
325321237,50sleep20-21swapper/223:15:142
7677212242,21sleep20-21swapper/221:45:282
7677212242,21sleep20-21swapper/221:45:282
2212821228,76sleep222167-21idleruntime00:15:192
2212821228,76sleep222167-21idleruntime00:15:192
11880212222,83sleep20-21swapper/222:00:142
11880212222,83sleep20-21swapper/222:00:142
544212124,73sleep3650-21apt-config19:45:023
29678212114,85sleep20-21swapper/221:15:032
29678212114,85sleep20-21swapper/221:15:032
11638212126,79sleep211710-21switchtime23:40:302
2066921208,72sleep220724-21latency00:10:222
10989211818,80sleep111130-21unixbench_multi21:55:331
10123211864,38sleep20-21swapper/223:35:332
15901211718,42sleep115975-21cat20:30:351
482211610,59sleep21-21systemd19:45:012
30373211617,21sleep10-21swapper/119:35:221
7826211412,66sleep27910-21sshd20:05:242
31052211413,85sleep031122-21/usr/sbin/munin23:00:130
31052211413,85sleep031122-21/usr/sbin/munin23:00:130
22921211425,31sleep223060-21modprobe20:55:042
3234211320,40sleep20-21swapper/221:30:542
15796211312,30sleep20-21swapper/223:55:202
25404211025,26sleep20-21swapper/221:00:332
17869210924,62sleep317944-21grep00:00:303
10067210812,79sleep310207-21cut21:55:023
8850210513,77sleep38945-21latency_hist20:10:023
17482210516,72sleep017576-21sed20:35:350
6440210427,20sleep26443-21ntp_states20:00:272
31407210221,58sleep031532-21grep21:20:020
18932210212,69sleep118991-21sendmail_mailqu20:40:371
22997210128,51sleep123088-21fschecks_time19:15:031
20081210131,19sleep220157-21cut20:45:222
1893210126,14sleep20-21swapper/223:10:212
1893210126,14sleep20-21swapper/223:10:212
26104210015,50sleep00-21swapper/021:05:030
52142984,11sleep00-21swapper/021:38:190
260892968,15sleep00-21swapper/019:20:470
1872629615,65sleep318784-21latency20:40:313
508129516,62sleep05199-21timerwakeupswit19:55:370
3231929337,26sleep10-21swapper/123:04:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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