Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window

[Samuel Thibault]

Paul Brook, le Sun 07 Sep 2008 16:35:54 +0100, a écrit :
> It also depends what testcase you're benchmarking. A few pixels changing 
> every 
> frame is IMHO not a particularly interesting case.

But we shouldn't spend time on it.  For qemu it's trivial to get the
dirtyness of course. For Xen/KVM it's far less.

> The interesting cases are guest completely idle,

Which needs to be somehow detected.

> and large screen updates.

In that case, why blitting from main memory to video memory?  Sure video
memory is slow.  But the guest already does tricky stuff to cope with
that...

Samuel