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2026-01-15 - 04:26
[ 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 50 highest latencies:
System rackbslot7s.osadl.org (updated Thu Jan 15, 2026 00:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
130792448813,4464sleep17621-21kworker/1:020:54:511
11982218379,1811sleep025855-1kworker/0:1H20:52:480
11982218379,1811sleep025855-1kworker/0:1H20:52:480
28532212648,1238sleep025855-1kworker/0:1H20:00:520
28532212648,1238sleep025855-1kworker/0:1H20:00:520
23270212435,1228sleep022966-1kworker/0:0H19:45:460
1920826236,609sleep11074-1kworker/1:1H22:57:141
2318925368,515sleep023232-21ntpq23:09:520
358125229,496sleep03624-21true22:09:290
1775625069,483sleep317800-21ntpq00:34:533
19786237116,337sleep019804-21fschecks_count22:59:470
26475231519,282sleep026556-21latency19:54:510
5817224512,211sleep35859-21ntpq22:14:533
9062224016,209sleep39029-21latency_hist00:09:303
17388222518,128sleep00-21swapper/021:09:310
761422166,177sleep00-21swapper/022:19:590
761422166,177sleep00-21swapper/022:19:590
16093221615,130sleep00-21swapper/022:49:300
16093221615,130sleep00-21swapper/022:49:300
2556221420,172sleep32707-21head20:20:013
9855220922,172sleep29878-21latency_hist22:29:302
9855220922,172sleep29878-21latency_hist22:29:302
12341219620,149sleep212471-21grep22:34:592
15827219121,98sleep015902-21latency_hist21:04:300
6220215965,72sleep00-21swapper/020:34:310
17136215862,75sleep00-21swapper/000:34:300
5211215412,127sleep25285-21find23:55:002
219321539,99sleep02234-21ntpq20:19:540
17321215328,27sleep00-21swapper/019:25:000
20825214919,115sleep111818-21systemd-journal23:02:391
14773214510,120sleep014258-21/usr/sbin/munin00:24:570
12931214481,47sleep00-21swapper/000:20:450
22021213951,74sleep0312-21in:imuxsock21:24:290
22021213951,74sleep0312-21in:imuxsock21:24:290
21680213950,26sleep00-21swapper/019:39:530
13181213918,93sleep113208-21fschecks_count19:14:351
24445213666,18sleep00-21swapper/023:14:490
1136521358,110sleep00-21swapper/000:14:560
11355213325,87sleep311372-21/usr/sbin/munin20:49:403
11355213325,87sleep311372-21/usr/sbin/munin20:49:403
19755213213,106sleep019833-21switchtime21:15:000
1037721329,111sleep010439-21wc22:29:520
26746213013,103sleep026784-21latency_hist21:39:300
2473621307,14sleep00-21swapper/019:49:460
23547212616,86sleep323698-21unixbench_singl23:10:003
12751212622,86sleep212722-21apt-get00:19:552
9591212558,14sleep00-21swapper/020:44:440
23469212415,91sleep323509-21grep19:47:553
13504212220,83sleep213535-21cpu19:14:442
8205212126,40sleep00-21swapper/000:04:550
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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