Re: [Qemu-devel] [PATCH] kvm: Set default accelerator to "kvm" if the host supports it

[Paolo Bonzini]

> But libguest can set it's accelerator option to whatever it wants.
> 
> If your running QEMU under a VM, it's pretty reasonable to have to
> use a special option IMHO.

It's also reasonable to have consecutive releases change defaults in
a more "friendly" way (i.e. from tcg to kvm:tcg), especially since
we'll get users that formerly used qemu-kvm and never had to specify
neither -machine accel nor --enable-kvm.

> > IMHO, default to KVM, fallback to TCG is the most friendly default
> > behaviour.
> 
> Except if a user expects good network performance and can't
> understand why they're getting 100kb/s.

libguestfs doesn't need network at all (though I wonder if they could
use lxc instead...).

Paolo