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2026-02-05 - 04:59
[ 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 Thu Feb 05, 2026 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28211274822,707sleep128273-21/usr/sbin/munin19:20:031
2151827237,708sleep016226-1kworker/0:0H00:15:390
29585271964,593sleep229722-21grep21:10:072
3876260117,563sleep33900-21/usr/sbin/munin19:50:223
1209325717,552sleep212128-21ntpq20:15:002
2965324236,411sleep010319-1kworker/0:0H22:56:010
9373241412,385sleep113200-1kworker/1:2H21:50:521
11109240525,341sleep211148-21ntpq21:56:222
11109240525,341sleep211148-21ntpq21:56:222
1061523647,347sleep34579-1kworker/3:1H21:55:383
27052235844,270sleep227135-21latency_hist21:04:382
27052235844,270sleep227135-21latency_hist21:04:382
323623579,205sleep23343-21timerandwakeup21:30:052
28847235724,322sleep229090-21snmpd22:52:152
16152232041,204sleep216206-21systemd23:59:342
27221231718,282sleep027223-21sshd19:17:080
2410623068,285sleep024144-21ntpq00:25:000
19184229549,197sleep21-21systemd20:39:352
19184229549,197sleep21-21systemd20:39:352
17464229256,174sleep20-21swapper/222:15:042
22194229120,256sleep322195-21sshd20:48:083
25863227225,225sleep20-21swapper/219:14:392
5231226748,159sleep25321-21latency_hist19:54:372
22870224751,136sleep223006-21unixbench_singl00:20:052
14483224450,101sleep214627-21unixbench_singl22:05:072
13527224412,208sleep013627-21latency_hist22:04:360
10241223081,66sleep210294-21fschecks_count20:09:552
26481222827,188sleep226495-21grep22:44:562
26481222827,188sleep226495-21grep22:44:562
391122279,67sleep23979-21grep19:50:252
13854222072,54sleep20-21swapper/220:20:052
13854222072,54sleep20-21swapper/220:20:052
25528221945,86sleep20-21swapper/200:29:582
19754221712,145sleep219879-21latency_hist22:24:372
7498221014,103sleep20-21swapper/223:29:582
26718220115,169sleep326794-21wc19:15:053
5935219112,164sleep35972-21ps19:55:073
2191421816,139sleep222030-21cut00:19:372
31745218019,133sleep30-21swapper/321:19:363
9935217027,48sleep09960-21latency_hist23:39:330
9935217027,48sleep09960-21latency_hist23:39:330
20899216944,83sleep220984-21gpgv00:14:362
1989721688,144sleep219933-21ntpq20:39:592
24757215991,13sleep20-21swapper/220:55:052
12394215821,93sleep20-21swapper/223:45:042
22307215514,121sleep0630-21cron20:49:340
31455215348,15sleep20-21swapper/219:30:062
28033214315,113sleep328056-21kernelversion22:49:543
8311214037,88sleep2296-21in:imuxsock20:04:342
654214052,48sleep20-21swapper/223:09:352
594721387,91sleep20-21swapper/223:24:582
7483213514,49sleep20-21swapper/221:44:552
7483213514,49sleep20-21swapper/221:44:552
11430213219,96sleep111584-21unixbench_multi21:56:291
11430213219,96sleep111584-21unixbench_multi21:56:291
4444213027,45sleep20-21swapper/221:34:582
11563212920,52sleep20-21swapper/223:44:362
4528212718,84sleep14637-21sed19:50:401
6235212615,89sleep26308-21mailstats21:40:022
32349212624,41sleep20-21swapper/219:34:462
3046921266,12sleep20-21swapper/221:14:512
5838212513,95sleep15933-21perl21:39:531
23171212514,91sleep323240-21/usr/sbin/munin20:50:053
23784212446,23sleep223805-21fschecks_count00:24:542
28849212341,46sleep00-21swapper/021:09:480
17636212329,57sleep217675-21modprobe20:34:342
1582212327,81sleep21654-21mailstats21:25:052
9243212118,32sleep20-21swapper/221:50:492
21335212111,93sleep320872-21apt-get00:14:413
21043212122,11sleep20-21swapper/220:44:472
912421209,96sleep09079-21apt-get21:50:140
23385211922,77sleep123522-21/usr/sbin/munin19:05:061
21636211832,48sleep221742-21tune2fs22:29:542
422211614,78sleep00-21swapper/019:35:050
16185211620,80sleep20-21swapper/222:10:072
10015211626,68sleep20-21swapper/223:39:352
10015211626,68sleep20-21swapper/223:39:352
29526211411,60sleep229544-21apt-get22:54:452
12064211421,77sleep112092-21/usr/sbin/munin20:14:591
30374211316,83sleep030378-21find21:14:450
2355921138,63sleep223620-21find22:35:032
32251211226,43sleep20-21swapper/221:19:562
8853211020,31sleep10-21swapper/121:49:381
8853211020,31sleep10-21swapper/121:49:381
16944211015,81sleep317033-21grep22:14:533
22889210927,54sleep022909-21kernelversion19:04:570
897210724,41sleep20-21swapper/223:09:482
7443210616,16sleep00-21swapper/020:00:000
31542210628,42sleep231562-21munin-run23:04:352
27551210625,69sleep227566-21kernelversion21:04:582
27551210625,69sleep227566-21kernelversion21:04:582
16452210542,44sleep20-21swapper/223:59:422
3057210442,45sleep20-21swapper/223:15:052
13172210325,39sleep213309-21modprobe23:49:362
27740210221,64sleep00-21swapper/022:49:430
9256210139,46sleep29360-21sshd20:05:072
26223210015,71sleep026287-21cpuspeed22:44:500
26223210015,71sleep026287-21cpuspeed22:44:500
25971210014,45sleep20-21swapper/222:44:362
25971210014,45sleep20-21swapper/222:44:362
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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