Benchmarking XRenderComposite() at runtime?

[Matthias Hopf]

On Mar 31, 06 07:50:54 +0200, Olivier Fourdan wrote:
> I'd like to test the speed of XRenderComposite() at runtime (to enable 
> or disable the compositor automatically) so I wrote a function that 
> measures the time it takes to perform a few XRenderComposite() calls.
> 
> Unfortunately, the results computed don't vary much between the 
> accelerated NVidia driver and the Open Source "nv" driver although the 
> compositor is hardly usable with transparency with the "nv" driver, so I 
> must be missing something here.

I doubt that rendering to pixmaps is accelerated by the graphics chip in
either case.

Matthias

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