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Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window
From: |
Samuel Thibault |
Subject: |
Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window |
Date: |
Mon, 8 Sep 2008 02:21:55 +0200 |
User-agent: |
Mutt/1.5.12-2006-07-14 |
Anthony Liguori, le Sun 07 Sep 2008 19:08:30 -0500, a écrit :
> Samuel Thibault wrote:
> >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.
>
> It's actually pretty simple with KVM.
Well, you still have to ask the kernel for the dirty pages
(qemu_kvm_get_dirty_pages). Much less simple and efficient than just
reading from qemu's dirty array.
> FWIW, I don't see guests consume a tremendous amount of CPU when idle
> with KVM. Can ya'll post some numbers with OpenGL and QEMU that show
> reduced CPU consumption?
I wasn't arguing for OpenGL, but for DGA (and thus have no numbers since
it doesn't work any more).
Samuel
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window, (continued)
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window, Jamie Lokier, 2008/09/06
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window, Samuel Thibault, 2008/09/07
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window, Paul Brook, 2008/09/07
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window, Samuel Thibault, 2008/09/07
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window, Paul Brook, 2008/09/07
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window, Samuel Thibault, 2008/09/07
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window, Paul Brook, 2008/09/07
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window, Samuel Thibault, 2008/09/07
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window, Paul Brook, 2008/09/07
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window, Anthony Liguori, 2008/09/07
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window,
Samuel Thibault <=
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window, Jamie Lokier, 2008/09/07
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window, Stefano Stabellini, 2008/09/08
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window, Jamie Lokier, 2008/09/08
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window, Stefano Stabellini, 2008/09/05
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window, Daniel P. Berrange, 2008/09/05
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window, Stefano Stabellini, 2008/09/05
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window, Anthony Liguori, 2008/09/06
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window, Stefano Stabellini, 2008/09/08
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window, Jamie Lokier, 2008/09/08
- Re: [Qemu-devel] [PATCH] opengl rendering in the sdl window, Stefano Stabellini, 2008/09/08