[maemo-developers] Bad Xephyr OpenGL performance

[From: Roger WANG]

On Thu, 2009-12-03 at 18:53 +0800 Murray Cumming wrote:
> Everyone knows that OpenGL (Accelerated 3D) performance in Xephyr (on
> the host PC) is bad, so you only see the smooth Maemo effects when
> running on an actual device. But nobody I ask seems to know _why_. It's
> maybe only a problem on Intel graphics hardware, but again, nobody I ask
> knows why.
> 
> I wonder if it's related to specific effects that Maemo uses, because
> the simple glxgears demo (in the mesa tarball) happily gets me around
> 1500 fps, or around 700fps using the -fullscreen option.

How about a clutter application in Xephyr? Maybe it helps locate the
problem in this way.

> 
> Can someone enlighten me, ideally with bug report URLs?
> 

-- 
Roger WANG