Re: [Qemu-devel] [PATCH RFC] accel: default to an actually available accelerator

[Cornelia Huck <cohuck@redhat.com>]

On Thu, 7 Sep 2017 10:14:27 +0200
Thomas Huth <thuth@redhat.com> wrote:

> On 07.09.2017 10:11, Kevin Wolf wrote:
> [...]
> > But the real reason why I'm replying: Should we add changing the default
> > to "kvm:tcg" to the list of planned 3.0 changes? I am part of the group
> > that intentionally uses TCG occasionally, but I think the majority of
> > users wants to use KVM (or whatever the fastest option is on their
> > system) whenever it is available.  
> 
> If you consider how often people are getting this wrong (they want to
> use KVM but end up with TCG in the first try), I think that's a good idea.

Agreed.

I'm wondering what that means for our tests, though. Some of them work
slightly different under tcg or kvm (cf. iotest 186, as referenced in
the original mail), and sometimes you'll probably explicitly want to
exercise tcg. That does not speak against the change, but we probably
need to look at what we want in more detail.

> Maybe we should start a Wiki page where we collect ideas for QEMU 3.0?

Also a good idea.

[Do we already have any idea about the timeframe for 3.0?]