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Date: Sun, 24 Jun 2007 17:40:22 -0500
From: Anthony Liguori <anthony@codemonkey.ws>
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Subject: Re: [Qemu-devel] [PATCH] starting qemu vnc session on a pre-allocated
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To: qemu-devel@nongnu.org

Shahar Livne wrote:
> Hi Anthony,
>
> Thanks for your comment.
>
> The problem with the solution you suggest is that all VNC traffic will 
> be first sent to the unix domain socket, and then copied to the TCP 
> socket. This double work may be acceptable if we're talking about one 
> instance of qemu, but as I said, I run many concurrent sessions which 
> create too much load. In the solution I suggest, this extra copying is 
> not needed.

You're optimizing prematurely.  The overhead of the copy is negligible 
for something like VNC.  Under normal circumstances, we're talking about 
30-100k/s.  During idle usage, the bandwidth drops to almost nothing.

Regards,

Anthony Liguori

> Regards,
> Shahar
>
>
>