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2026-02-16 - 20:05
[ 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 Mon Feb 16, 2026 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17993282042,729sleep218067-21/usr/sbin/munin10:39:412
17993282042,729sleep218067-21/usr/sbin/munin10:39:412
11454274416,710sleep011467-21/usr/sbin/munin08:35:050
2618025210,24sleep215492-21cyclictest11:04:592
28199249774,399sleep228356-21tail07:45:132
24417232825,292sleep224458-21ntpq09:15:052
15725231566,192sleep215747-21cut08:49:412
10121227267,185sleep210267-21unixbench_singl11:55:112
21325225258,172sleep221404-21mailstats07:25:102
17771225151,179sleep217804-21fschecks_count07:15:002
17771225151,179sleep217804-21fschecks_count07:15:002
1622222711,202sleep31630-21ntp_states09:45:063
12531222434,144sleep212677-21apt-config08:39:432
23435221918,186sleep123497-21/usr/sbin/munin10:55:101
23498220728,74sleep20-21swapper/210:55:112
10143220615,116sleep210228-21threads08:30:112
11139220115,171sleep113441-21snmpd10:15:131
22485220010,168sleep215898-1kworker/2:1H09:09:522
21822219920,107sleep221842-21munin-plugin-st12:34:402
1681219719,110sleep20-21swapper/209:45:092
25874219418,154sleep126028-21latency_hist11:04:431
2164221877,170sleep013441-21snmpd12:32:200
134021809,69sleep20-21swapper/211:29:442
5271217886,74sleep20-21swapper/211:40:092
5271217886,74sleep20-21swapper/211:40:092
29342217711,141sleep00-21swapper/011:15:000
2844217770,21sleep20-21swapper/208:09:442
20252217715,80sleep20-21swapper/209:02:452
9902217170,80sleep20-21swapper/210:10:452
25735215948,94sleep225851-21sed07:39:442
3216721538,132sleep032168-21/usr/sbin/munin07:59:520
3121921539,126sleep00-21swapper/011:20:090
28669215319,112sleep028697-21idleruntime-cro09:29:410
13008215215,119sleep213069-21sendmail_mailqu12:05:082
30799215159,74sleep20-21swapper/207:55:022
23419214233,96sleep223471-21chmod12:39:412
6135214054,67sleep20-21swapper/208:19:412
4336213936,64sleep24349-21cron08:14:402
13386213536,78sleep20-21swapper/210:24:422
23940213436,82sleep224070-21cut07:34:432
12535213415,105sleep112536-21cpu12:04:551
20181213311,93sleep30-21swapper/307:20:143
25538212926,12sleep20-21swapper/211:01:212
7379212846,22sleep27391-21apt-get10:04:522
22611212814,97sleep122698-21tune2fs09:10:191
1858721289,14sleep00-21swapper/007:15:140
1858721289,14sleep00-21swapper/007:15:140
1923212644,22sleep21977-21latency11:30:122
18311212643,20sleep20-21swapper/210:39:572
21167212421,83sleep321316-21latency_hist10:49:433
15828212321,21sleep20-21swapper/210:30:122
15828212321,21sleep20-21swapper/210:30:122
19452212219,76sleep20-21swapper/207:20:012
17316212262,44sleep017426-21store12:19:440
16189212024,78sleep316196-21ntp_states07:10:083
1430021199,50sleep214422-21timerwakeupswit10:25:112
29035211813,53sleep215492-21cyclictest09:29:592
22575211814,91sleep022097-21apt-get07:29:480
16817211718,77sleep016863-21fschecks_count10:34:580
16817211718,77sleep016863-21fschecks_count10:34:580
5472211416,77sleep34839-21/usr/sbin/munin08:15:343
25657211328,22sleep20-21swapper/209:19:572
25657211328,22sleep20-21swapper/209:19:572
16317211222,72sleep316463-21unixbench_multi12:15:103
4411211114,82sleep04540-21cat08:14:420
32541211014,81sleep332550-21ntp_states09:40:103
19618211011,83sleep219699-21timerandwakeup12:25:112
17199211018,71sleep117264-21ps10:35:071
17199211018,71sleep117264-21ps10:35:071
12814211020,68sleep012945-21grep10:20:120
10663211013,79sleep3588-21cron11:59:403
306210912,82sleep3377-21ps11:25:083
30524210911,39sleep230612-21wc11:19:422
17497210911,22sleep20-21swapper/212:20:182
26043210713,71sleep326079-21ntp_states09:20:073
26043210713,71sleep326079-21ntp_states09:20:073
1699921079,82sleep217102-21cat12:19:422
17966210511,34sleep218013-21ntpq08:55:062
6581210412,73sleep215492-21cyclictest11:45:022
31848210428,14sleep20-21swapper/209:39:442
2772421037,14sleep30-21swapper/309:25:323
19113210210,77sleep319118-21acpi08:59:513
11104210024,57sleep20-21swapper/211:59:592
11104210024,57sleep20-21swapper/211:59:592
2696829927,11sleep20-21swapper/207:41:212
1451929917,65sleep114125-21/usr/sbin/munin07:05:061
1537929818,61sleep20-21swapper/212:14:412
1537929818,61sleep20-21swapper/212:14:412
329429719,16sleep20-21swapper/211:35:012
2775029713,66sleep327836-21fw_packets11:09:583
1547929616,15sleep20-21swapper/207:09:432
1540829635,38sleep015423-21modprobe07:09:410
645829520,59sleep16528-21df08:19:561
1602029325,19sleep216084-21df08:49:572
1602029325,19sleep216084-21df08:49:572
10812938,20sleep21231-21apt-config08:04:432
2778529218,50sleep127801-21/usr/sbin/munin07:45:041
1990929215,25sleep00-21swapper/007:20:110
1049729226,15sleep20-21swapper/210:14:572
165529118,54sleep31611-21/usr/sbin/munin11:30:053
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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