Re: [gentoo-user] best cflags and cpu for gentoo qemu virtual machine

[Kfir Lavi]

On Sun, Jul 17, 2011 at 7:19 PM, Daniel da Veiga <danieldaveiga@×××××.com>wrote:

> On Sat, Jul 16, 2011 at 10:54, Kfir Lavi <lavi.kfir@×××××.com> wrote:
>
>> Hi,
>> I'm creating a router based on Gentoo, that needs to run as a vm using
>> qemu.
>> The mother machine will be Core I7 4 cores.
>> What cpu and CFLAGS should I use to get the best performance out of this
>> vm?
>>
>>
> If you intend to run this VM on different hardware or distribute it in any
> way (so you don't really know on what hardware it will run) your best bet is
> to set a generic arch like i686 or lower, OR hope the VM is run on software
> based emulation (slow) so you don't have to worry about what CPU is running
> it.
>
> From my experience with qemu, you'll have a lot of requirements too, like
> bridging and kernel module for virtual interfaces (tun/tap).
>
> Now, if this will run on your machine, with kqemu, you'll set march on your
> guest  as your host is...
>
> --
> Daniel da Veiga
>

I'll build each router for its box. I don't want to use i686 as I'll run
also on Atom, and this comp is really really slow with kvm support.

Kfir