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2026-01-21 - 06:17
[ 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 #e, slot #3

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.

Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackeslot3s.osadl.org (updated Wed Jan 21, 2026 00:45:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27864869910379,22cyclictest0-21swapper/023:05:020
2786486999789,5cyclictest2869731-40mandb00:00:020
278648699838,57cyclictest2789974-21latency_hist20:15:030
2786486998011,34cyclictest2791434-21latency_hist20:45:020
278649699791,23cyclictest131rcu_preempt21:45:022
2786486997923,28cyclictest2794918-21cron21:15:000
278648699789,40cyclictest2872108-21latency_hist00:05:020
2786486997818,20cyclictest2832954-21ssh22:38:450
2786496997765,9cyclictest0-21swapper/219:10:002
278648699777,38cyclictest0-21swapper/022:46:560
278648699768,33cyclictest0-21swapper/000:15:020
278648699768,33cyclictest0-21swapper/000:15:020
2786486997638,5cyclictest2885698-21munin-run00:35:000
2786486997623,17cyclictest2840319-21latency_hist22:55:020
2786486997523,22cyclictest2787871-21cat19:35:020
2786500997452,19cyclictest37-21ksoftirqd/323:40:023
2786486997327,9cyclictest2831215-21munin-run22:35:000
2786486997327,9cyclictest2831215-21munin-run22:34:590
2786486997227,40cyclictest2842573-21cron23:00:000
2786486997224,13cyclictest2848558-21sh23:12:590
2786490997147,17cyclictest23-21ksoftirqd/119:50:021
278648699716,35cyclictest0-21swapper/022:09:250
2786486997019,15cyclictest2866996-21ssh23:53:430
2786486997019,15cyclictest2866996-21ssh23:53:430
2786486997017,21cyclictest2835086-21sh22:43:220
2786486997017,20cyclictest2810375-21ssh21:48:520
2786486997017,20cyclictest2810375-21ssh21:48:520
2786486996923,15cyclictest2881575-21ssh00:25:420
2786486996917,15cyclictest2792301-21cat21:00:020
278648699686,30cyclictest0-21swapper/000:08:310
2786486996832,5cyclictest2851584-21ssh23:20:000
2786486996712,11cyclictest0-21swapper/021:52:200
2786486996623,14cyclictest2825742-21ssh22:22:420
2786486996622,39cyclictest2863888-21ssh23:46:410
2786486996622,10cyclictest2822497-21ssh22:15:200
2786486996434,20cyclictest3467602-21systemd-journal19:20:010
2786486996434,20cyclictest3467602-21systemd-journal19:20:010
2786486996416,17cyclictest2792640-21diskmemload21:22:210
2786486996320,9cyclictest2860682-21munin-run23:39:590
278648699629,23cyclictest0-21swapper/000:23:210
2786486996229,29cyclictest364-21snmpd00:16:200
2786486996222,14cyclictest2855343-21ssh23:27:530
2786486996215,19cyclictest0-21swapper/022:28:220
2786486996214,14cyclictest2814717-21ssh21:58:290
278649699617,39cyclictest291rcuc/223:25:012
2786486996147,10cyclictest2856540-21ssh23:30:250
2786486996123,9cyclictest2789509-21sshd20:07:060
2786486996123,33cyclictest48-21kcompactd021:29:280
2786486996118,18cyclictest2792640-21diskmemload23:24:110
2786486996023,15cyclictest2845456-21ssh23:05:550
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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