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2026-02-17 - 21:02
[ 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 Tue Feb 17, 2026 12:43:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25004285867,8566sleep320360-21kworker/3:107:53:383
2985426936,675sleep329890-21ntpq11:35:013
2985426936,675sleep329890-21ntpq11:35:013
192522618366,62sleep30-21swapper/307:34:563
24060248820,443sleep024081-21awk09:34:360
24060248820,443sleep024081-21awk09:34:360
1597247619,441sleep11612-21/usr/sbin/munin10:05:031
1597247619,441sleep11612-21/usr/sbin/munin10:05:031
14602243353,303sleep314664-21fschecks_time07:19:583
19395235540,211sleep319398-21cron09:19:373
10135235312,285sleep310240-21fschecks_time08:49:563
7129226677,137sleep30-21swapper/308:39:593
28211225123,209sleep028336-21head09:45:070
6052224667,101sleep36194-21grep08:35:103
25608223633,187sleep325610-21cron09:39:363
25608223633,187sleep325610-21cron09:39:363
216282235145,70sleep30-21swapper/309:25:023
216282235145,70sleep30-21swapper/309:25:023
20846222921,193sleep320986-21unixbench_multi11:05:093
24601222537,88sleep324686-21latency_hist11:19:393
29572222227,161sleep229637-21uniq11:34:562
29572222227,161sleep229637-21uniq11:34:562
4085221727,178sleep34103-21grep10:14:383
5681221568,115sleep30-21swapper/310:19:393
32496221571,58sleep30-21swapper/308:15:113
15105220754,93sleep315143-21fschecks_count09:04:593
16229220411,177sleep216188-21apt-get12:35:122
289222006,158sleep33013-21cat08:25:083
10271219951,102sleep310311-21http10:34:373
10271219951,102sleep310311-21http10:34:373
12493219711,121sleep30-21swapper/307:14:413
8853218940,107sleep39007-21unixbench_multi12:10:103
8853218940,107sleep39007-21unixbench_multi12:10:103
26168218772,52sleep30-21swapper/311:24:393
1980221798,16sleep00-21swapper/011:03:450
17540217718,68sleep117567-21cat12:39:391
12565217529,135sleep312687-21sed08:55:383
12565217529,135sleep312687-21sed08:55:383
3588216930,99sleep33610-21fschecks_count11:55:033
3588216930,99sleep33610-21fschecks_count11:55:033
31158216446,59sleep30-21swapper/311:39:573
27554216116,84sleep30-21swapper/309:44:533
18289216115,129sleep318303-21modprobe10:59:363
2074216011,132sleep32114-21grep11:50:033
32698215911,132sleep332750-21fschecks_count11:44:583
12576215516,108sleep10-21swapper/107:14:431
1071521558,132sleep310845-21date07:09:403
14601215345,25sleep30-21swapper/310:45:073
14601215345,25sleep30-21swapper/310:45:073
9425215029,111sleep313441-21snmpd08:45:283
12460214622,49sleep30-21swapper/310:39:543
12460214622,49sleep30-21swapper/310:39:543
1298214410,122sleep31360-21switchtime08:20:083
746821438,16sleep30-21swapper/310:24:523
32224214314,55sleep30-21swapper/309:59:563
27041214111,16sleep00-21swapper/007:59:570
25860214035,59sleep30-21swapper/307:55:083
24437214015,111sleep024463-21fschecks_count09:34:570
24437214015,111sleep024463-21fschecks_count09:34:570
20667213734,49sleep30-21swapper/309:20:463
28891213636,83sleep30-21swapper/311:30:453
460521307,13sleep00-21swapper/010:14:590
1701121299,107sleep117012-21/usr/sbin/munin10:54:501
29235212618,38sleep129245-21unin-run11:34:381
1737021249,54sleep317459-21ls07:29:393
1097321247,104sleep310996-21cpu07:09:523
1097321247,104sleep310996-21cpu07:09:523
27182212112,49sleep327225-21true09:44:373
27182212112,49sleep327225-21true09:44:373
25374212019,83sleep125428-21cpuspeed07:54:531
1083521197,55sleep310802-21apt-get10:35:103
23577211821,80sleep30-21swapper/307:49:383
30139211710,44sleep30-21swapper/308:09:583
22883211543,58sleep322781-21/usr/sbin/munin09:29:553
22883211543,58sleep322781-21/usr/sbin/munin09:29:553
16236211421,51sleep30-21swapper/312:35:173
26478211316,81sleep126560-21cut11:24:581
16016211310,49sleep30-21swapper/310:50:073
16016211310,49sleep30-21swapper/310:50:073
24354211021,66sleep124326-21/usr/sbin/munin09:34:541
24354211021,66sleep124326-21/usr/sbin/munin09:34:541
13094211018,65sleep113217-21grep10:40:081
13094211018,65sleep113217-21grep10:40:081
11488210917,76sleep211692-21latency_hist08:54:402
17242210625,66sleep317365-21cat09:10:083
11436210515,24sleep111520-21perl12:19:571
16668210315,21sleep00-21swapper/012:35:300
14873210315,31sleep310728-21cyclictest12:30:043
21236210113,76sleep221252-21awk09:24:492
21236210113,76sleep221252-21awk09:24:492
3899210018,64sleep13939-21grep11:55:101
3899210018,64sleep13939-21grep11:55:101
2975829927,54sleep229775-21modprobe08:09:362
2975829927,54sleep229775-21modprobe08:09:362
3062929819,20sleep20-21swapper/208:10:092
2042329715,23sleep00-21swapper/009:20:110
1326229714,69sleep213299-21ntpq12:25:022
2991629620,60sleep028995-21/usr/sbin/munin09:50:110
2991629620,60sleep028995-21/usr/sbin/munin09:50:110
2227829614,18sleep10-21swapper/107:44:521
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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