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2026-02-14 - 11:36
[ 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 #7, slot #4

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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack7slot4s.osadl.org (updated Sat Feb 14, 2026 00:45:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31707996411,10cyclictest131rcu_preempt22:20:120
3170799587,7cyclictest131rcu_preempt22:55:140
31719995621,11cyclictest10629-21apt-get00:25:121
31719995621,11cyclictest10629-21apt-get00:25:121
31719995437,10cyclictest11396-21apt-get22:55:131
3170799523,4cyclictest131rcu_preempt23:30:120
3170799516,35cyclictest29404-21ssh23:05:140
3172799473,33cyclictest6447-21ssh21:40:142
3171999453,36cyclictest18831-21ssh22:05:121
3171999452,5cyclictest131rcu_preempt21:00:141
3170799452,8cyclictest12-21ksoftirqd/022:40:120
31735994426,11cyclictest28366irq/58-eth021:50:123
3173599431,39cyclictest0-21swapper/322:40:123
31719994232,6cyclictest15156-21apt-get20:00:131
3170799422,30cyclictest31293-21ssh22:30:130
3171999412,31cyclictest19570-21ssh00:30:131
3171999412,31cyclictest19570-21ssh00:30:121
31719994118,9cyclictest3017-21/usr/sbin/munin22:30:301
31719994112,12cyclictest30789-21fw_packets00:00:151
31707994127,8cyclictest12-21ksoftirqd/022:18:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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