Re: [Qemu-devel] Re: Qemu 2D performance plunges below acceptable levels

[malc]

On Wed, 18 Feb 2009, Stefano Stabellini wrote:

> malc wrote:
> 
> >> As usual two good tests are to check the vnc case and a guest in 32bpp too.
> > 
> > This doesn't happen on the very same machine running very same guest but
> > host OS being Linux.
> > 
> 
> 
> 
> Uhm.. are you using one of those infamous 20-inch iMac with a resolution
> of 6 bits per pixel?
> That would explain the slow down.
> Please try this patch and let me know if it makes a difference:
> 

It doesn't. FWIW not quite "value preserving" operation of removing call
to SDL_UpdateRect from sdl_update and putting SDL_Flip into sdl_refresh
does.

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