Re: [Qemu-devel] Network Performance between Win Host and Linux Guest

[Lars Bakker]

Hello!

Did you find out why qemu's networking is so slow?
Is that a general issue or is it just happening when running qemu on
windows?
What has actually been changed in version 0.7.2? (The changelog says
that improvements were made in user-mode-networking)

> I guess the best way is to understand why the network is so slow. 
> This is a bug in SLIRP ou the NE2000 emulated card, not > > something
> due to the CPU emulation itself.

I saw some patches that add support for other NICs in qemu. Did anyone
experience an improvement in network performance when using these patches?

Sorry for asking so many questions, but I would really like to use qemu.
Network performance is quite important to me and I don't like the idea 
of using another hard disk image to access data from the host system,
because you cannot use it while qemu is running.

If someone gave me a hint on where to look to solve this problem, I
would be very grateful and I would certainly try to help.

Regards,
Lars