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2026-01-26 - 01:26
[ 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 #5, 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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack5slot3s.osadl.org (updated Sun Jan 25, 2026 12:44:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
303312235163,24sleep20-21swapper/207:08:562
301112235165,57sleep10-21swapper/107:06:061
303862202165,25sleep00-21swapper/007:09:390
301802202165,25sleep30-21swapper/307:06:593
2097821810,5sleep03050299cyclictest09:10:250
348921570,4sleep23051499cyclictest09:45:182
520321490,3sleep23051499cyclictest12:15:242
30519998683,2cyclictest0-21swapper/310:01:243
45692640,2sleep14572-21unixbench_multi11:00:271
77222570,2sleep00-21swapper/011:10:130
167922490,4sleep341-21ksoftirqd/310:15:213
70832480,1sleep10-21swapper/109:55:131
101802480,1sleep10-21swapper/111:15:161
78602450,2sleep2311ktimersoftd/211:10:152
30502993812,12cyclictest3207-21munin-run07:20:010
3051499365,3cyclictest12050irq/123-ahci[0009:00:012
30502993510,9cyclictest913-21sssd_nss09:35:010
30502993510,13cyclictest4041-21/usr/sbin/munin08:35:140
3051499349,2cyclictest88150irq/126-enp1s0-09:40:202
30514993412,2cyclictest7824-21/usr/sbin/munin07:30:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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