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2026-03-01 - 18:49
[ 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 Sun Mar 01, 2026 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23509275088,7488sleep315908-21kworker/3:209:31:233
23509275088,7488sleep315908-21kworker/3:209:31:233
146372176817,1729sleep014638-21apt-get12:29:380
3843249011,463sleep33906-21fschecks_time08:29:133
3843249011,463sleep33906-21fschecks_time08:29:133
26183239522,291sleep316455-21kworker/u8:211:23:573
3011423038,280sleep030158-21ntpq08:09:200
30136228516,204sleep330177-21proc_pri11:34:223
10149228077,126sleep310209-21sendmail_mailqu12:14:273
27320227793,113sleep327467-21unixbench_multi07:59:253
3529226622,215sleep33619-21fschecks_time11:54:123
3529226622,215sleep33619-21fschecks_time11:54:123
31175225981,96sleep331325-21unixbench_singl09:54:253
26988223613,208sleep327033-21ntp_offset11:24:253
31002223313,203sleep323232-21kworker/u8:208:13:553
1474222278,207sleep314797-21fschecks_time12:29:533
9738222419,189sleep00-21swapper/008:48:570
23179222423,42sleep10-21swapper/111:14:061
23179222423,42sleep10-21swapper/111:14:061
25255221122,114sleep325294-21modprobe09:38:543
25255221122,114sleep325294-21modprobe09:38:543
17511220719,111sleep317652-21latency_hist12:38:583
19199220275,112sleep319335-21timerwakeupswit10:59:263
6376220082,22sleep30-21swapper/312:03:573
8138218416,99sleep38154-21apt08:43:553
11377218321,136sleep111532-21grep07:09:281
40721829,13sleep30-21swapper/311:44:113
8116218118,150sleep00-21swapper/012:09:070
8116218118,150sleep00-21swapper/012:09:070
20789218120,140sleep020937-21unixbench_multi11:04:240
25673218085,75sleep30-21swapper/307:54:243
17398217914,142sleep30-21swapper/310:54:413
27270217319,129sleep127425-21grep11:24:311
19521217057,92sleep30-21swapper/309:19:163
18610216345,103sleep318758-21latency_hist07:33:573
84272161122,19sleep30-21swapper/308:44:113
11291216169,75sleep30-21swapper/308:53:563
5579215172,60sleep30-21swapper/310:18:563
5579215172,60sleep30-21swapper/310:18:563
14444215154,82sleep314594-21cat09:03:583
1261921476,13sleep00-21swapper/007:14:120
9372214254,71sleep30-21swapper/310:29:223
28742214212,116sleep328857-21timerandwakeup11:29:263
27315214261,17sleep30-21swapper/309:44:153
10875214131,90sleep30-21swapper/307:09:183
16827214018,72sleep216969-21grep12:34:252
5670213858,19sleep3357-21ntpd08:34:183
1747213747,70sleep30-21swapper/310:04:263
14209213547,23sleep30-21swapper/312:28:563
19578213453,68sleep319728-21unixbench_singl07:34:263
17481213146,24sleep317513-21munin-run09:13:553
31251213014,22sleep30-21swapper/311:39:103
24554213015,103sleep024625-21cat11:18:570
24554213015,103sleep024625-21cat11:18:570
29400212953,60sleep129415-21/usr/sbin/munin09:49:431
26473212944,69sleep310453-21cyclictest09:39:273
2580212722,94sleep32615-21ntp_kernel_err08:24:213
2580212722,94sleep32615-21ntp_kernel_err08:24:213
10838212750,39sleep30-21swapper/310:34:193
8306212613,101sleep013441-21snmpd10:24:510
12702212630,83sleep312758-21tune2fs07:14:153
31294212514,25sleep30-21swapper/308:14:113
7239212413,25sleep30-21swapper/312:04:263
27909212313,95sleep127950-21systemd-run08:03:551
27665212120,42sleep00-21swapper/009:44:250
15989212116,86sleep316141-21latency_hist09:08:583
9426211723,77sleep19475-21latency_hist12:13:571
9426211723,77sleep19475-21latency_hist12:13:571
24015211717,83sleep30-21swapper/307:49:243
848211513,86sleep00-21swapper/010:03:550
848211513,86sleep00-21swapper/010:03:550
6297211415,82sleep26359-21find10:19:232
6297211415,82sleep26359-21find10:19:232
28196211310,80sleep328170-21/usr/sbin/munin08:04:103
5301211021,45sleep00-21swapper/008:34:070
19135210921,64sleep119285-21latency_hist09:18:581
7453210816,72sleep17540-21fschecks_time10:24:151
62121089,13sleep30-21swapper/308:19:003
1984210813,80sleep31868-21/usr/sbin/munin11:49:163
15800210818,20sleep30-21swapper/310:49:293
14374210710,81sleep014395-21awk09:03:550
953721067,84sleep00-21swapper/007:04:230
28271210513,25sleep128278-21diskstats08:04:121
22678210528,17sleep30-21swapper/307:44:273
632210421,63sleep132582-21apt-get08:19:061
31475210313,67sleep00-21swapper/008:14:160
1172321029,46sleep10-21swapper/112:19:221
7149210021,64sleep27237-21cat12:04:252
2147629623,27sleep310453-21cyclictest09:24:253
1823529626,50sleep018241-21modprobe10:58:540
1659329615,28sleep10-21swapper/112:34:201
118632969,36sleep311942-21grep12:19:243
253402959,69sleep125403-21switchtime11:19:221
146692956,11sleep30-21swapper/310:45:573
1655529419,17sleep30-21swapper/307:24:283
2632429321,50sleep126352-21awk07:58:551
1039229333,38sleep21264-1kworker/2:1H07:08:572
95329219,31sleep00-21swapper/011:44:240
2816929215,60sleep228171-21/usr/sbin/munin08:04:052
1932229116,51sleep019385-21sendmail_mailqu07:34:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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