Re: [Qemu-devel] qemu-fast target removal ?

[Fabrice Bellard]

Herbert Poetzl wrote:

> I would _really_ appreciate not to spend almost
> three times the amount of time and a lot more
> of cpu power to wait for the kernel to boot ...

I will just disable its compilation by default, but the code will still 
be there for some time, so you will be able to enable it with the 
--target-list option.

> > This target is replaced by the standard QEMU with soft mmu support. The 
> > QEMU Kernel Acceleration Layer which will be unveiled very soon will 
> > give much more performance while working with unpatched guest OSes.
>
>
> any numbers for that? will it be compareable?

All I can say is that for Linux or Windows user code (such as nbench), 
the performance is the same as the native one.

> what will it require?

A small host kernel module is needed. It works with 2.4 and 2.6 Linux 
kernels.

Fabrice.