[Mesa-dev] [Bug 40401] Cogs is slow

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Aug 26 23:17:40 PDT 2011


Pavel Ondračka <pavel.ondracka at email.cz> changed:

           What    |Removed                     |Added
             Status|NEW                         |RESOLVED
         Resolution|                            |NOTOURBUG

--- Comment #2 from Pavel Ondračka <pavel.ondracka at email.cz> 2011-08-26 23:17:40 PDT ---
(In reply to comment #1)
> (In reply to comment #0)
> > The game Cogs is very slow with the r300g (and r600g) driver. This was
> > originally mentioned in bug 39572, however that bug was about different problem
> > and is already closed. There are two experimental patches for r300g and r600g
> > in that bug, so I'm opening a new bug to keep track of them. Setting component
> > to mesa core because the problem seems to be in u_vbuf_manager.
> > 
> I think it's not a mesa problem, it's a problem of the game which uses opengl
> in the way which is clearly described in the gl spec as the way to get reduced
> performance. This patch is a workaround for the game problem and it was written
> just to check that I located the problem correctly. All other (properly
> optimized) apps won't benefit from this patch, probably they'll become a bit
> slower due to additional overhead with this workaround. That's why I'm not sure
> that I want to submit such patches to mesa.
> The best solution is to fix the game itself, so I think it makes sense to ask
> the game developers about it (or to open the sources).

OK, I've posted about this at Cogs forums:
we shall see what can Cogs developers say about this.

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