Re: [Qemu-devel] [PATCH] Improve -net user (slirp) performance by 4x

[Fabrice Bellard]

Fabrice Bellard wrote:
> Ed Swierk wrote:
>
> > 3. qemu sleeps soundly while packets back up in slirp's buffers. slirp
> > socket fds should be added to the main qemu select() loop to avoid
> > unnecessary delays.
>
>
> I agree, but your patch does not suppress the slirp select(). I tried to 
> do it with the following patch but slirp becomes twice slower and I 
> cannot get a good explanation. Maybe you could look at that problem so 
> that a real correction can be commited.
>
> Regards,
>
> Fabrice.

I finally found the problem. Now slirp is even faster !

Fabrice.