[OpenJDK 2D-Dev] [9] request for review: 8087201: OGL: rendering of lcd text is slow

[Phil Race]

On 06/25/2015 03:33 AM, Andrew Brygin wrote:
>
>> Given that it is a unified driver it sounds like we may be want
>> to disable this code path when on windows at least for NV but I guess we
>> may also want to validate that on some other cards - from Nvidia - to
>> see if it is a driver or h/w limitation.
> Probably, we should to run the text benchmarks on relatively big set 
> of windows
> machines, and if we see that good performance of glCopyTexSubImage() 
> is sooner
> a rule than an exception, then we can just disable the new code path 
> on windows.
>
> Wat do you think? 

Yes.

Also it occurs to me to wonder why we have not had the same performance 
complaints
when using D3D on Windows .. different APIs but they have the same 
limitation.
It would be interesting to know if objective performance tests on the 
same hardware
show that Windows users are more forgiving or it really is not a problem 
there ...

-phil.