[Xquartz-dev] Lastest X11 is slow in video output?

[Jeremy Huddleston]

On Jul 25, 2009, at 19:32, Jordan K. Hubbard wrote:

> Let me ask a different question:  If someone else were willing to do  
> the work of repairing and bringing rlAccel up to date, would it be  
> welcome in the tree?

If someone found out why rlAccel is crashing and handed off a fix, I'd  
certainly welcome it, and if someone is interested in tacking such  
work, please speak up as it's a nice compact task that can help you  
get involved...   Unfortunately, I don't see myself devoting any time  
specifically to rlAccel. "the right way" will involve rewriting the 2D  
operations using the EXA framework which was designed to do exactly  
what we were using rlAccel for.


>
> On Jul 25, 2009, at 3:40 PM, Jeremy Huddleston wrote:
>
>> rlAccel was disabled around 2.1.x and hasn't been on since.  It  
>> actually
>> isn't a big concern.  The fastpaths that it enabled are nice, but the
>> pixman fastpaths are similar in nature, so I don't think we're  
>> suffering
>> a big hit.  Sure, it would be nicer to offload some of that from  
>> the CPU
>> to the GPU, but it's not that critical.  This is the first case  
>> where it
>> has actually come up.  I did some testing and actually re-enabled
>> rlAccel and reran the xscreensaver, and it was only 9fps (as  
>> opposed to
>> 7).  So it is a slight improvement, but the bottleneck is certainly
>> elsewhere.
>
> _______________________________________________
> Xquartz-dev mailing list
> Xquartz-dev at lists.macosforge.org
> http://lists.macosforge.org/mailman/listinfo.cgi/xquartz-dev