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different speed of ODE benchmark with and without MATLAB gui

Asked by Michal Kvasnicka on 16 Jul 2018
Latest activity Edited by Michal Kvasnicka on 17 Jul 2018
When I ran matlab benchmark on Linux at MATLAB GUI and at MATLAB command line (without gui) I get the different speed of ODE benchmark:
MATLAB GUI:
time_gui = bench(50);time_meam = mean(time_gui,1)
0.0824 0.1204 *0.0489* 0.0871 0.4029 0.4236
MATLAB cmdline:
time_cmd = bench(50);time_meam = mean(time_cmd,1)
0.0829 0.1214 *0.0142* 0.0948 0.3838 0.4166
Why is ODE (only!!!) benchmark 4x slower at MATLAB with GUI than at MATLAB without GUI (3rd number) at averaged benchmark results?

  2 Comments

When you say "GUI" or "cmdline", are you referring to running with the desktop or -nodesktop ?
Situation getting be more complicated...
When I run MATLAB by desktop launcher:
[Desktop Entry]
Version=1.0
Type=Application
Terminal=true
Exec=/usr/local/MATLAB/R2018a/bin/matlab -desktop
Name=MATLAB
Icon=/home/x/.local/share/icons/matlab.png
Categories=Development;Math;Science
Comment=Scientific computing environment
StartupNotify=true
Path=/home/x/Documents/MATLAB
I observed ~4x slow down of ODE benchmark compare to the following two cases:
$ matlab -desktop
or
$ matlab -nodesktop
from command line (terminal)
For these two cmdline (terminal) commands ODE benchmark performs significantly faster.

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