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Contributor
Contributor
877 Views
Registered: ‎01-24-2013

Mali graphics performance on Ubuntu

I've booted up one of the Ubuntu example designs on my ZCU102, and am experimenting with the graphics performance.  I found that running glmark2 (the software version) gives a glmark score of 5.  glmark2-es2 (the hardware-accelerated version) shows that the Mali driver is running, but also gives a score of 5.  This is, to put it nicely, a little less than I had hoped for.  Is this lack of performance expected, or is something wrong with my setup or the reference design?

Thanks!

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2 Replies
Newbie zhangyifei
Newbie
742 Views
Registered: ‎12-17-2017

Re: Mali graphics performance on Ubuntu

I also have the same problem. Mali GPU's driver is ok, but it seems to have no effect.

Do you solve this problem?

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Contributor
Contributor
730 Views
Registered: ‎01-24-2013

Re: Mali graphics performance on Ubuntu

I think the problem has to do with X11/XFCE.  If I run it with the --off-screen option, I get much higher performance (>100fps).  If I run the software version with --off-screen, it still gets about the same performance (~5fps).

 

Basically, even if the window is accelerated, the window manager/X11/something still has to copy the pixels to the screen, and this happens very slowly.  As far as I can tell, the only solution is to run applications in fullscreen mode without any desktop environment (as is done by the "tricube" demo on the UltraZed), or to use a composited desktop (e.g., compiz or kwin).

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