Re: [Qemu-discuss] [Qemu-devel] Apple hyphervisor.framework availability

[Paolo Bonzini]

On 07/02/2018 12:41, Brendan Simon (eTRIX) wrote:
> 
> I've been pulling qemu master, building and invoking a Win 7 Pro guest
> with hvf acceleration (running on a MacBook Pro host with i7, 16GB DRAM,
> 1TB SSD).
> 
> My impression is it is not as fast as it should/could be.  My baseline
> is Veertu Desktop (which also uses Apples Hypervisor Framework).  Veertu
> is blindingly fast compared to qemu/hvf, VirtualBox and even VMWare.
> 
> Also, qemu seems to crash if left for a period of time (in the order of
> hours).  No response at all.  No cursor movement or anything.  I have to
> force quit the application.

Hmm, it would be interesting to get a debugger backtrace when that happens.

> I'm reasonably happy with Veertu, but it has a few bugs (networking
> stops, and lack of usb support).  The biggest problem is that there is
> very little development on it.
> 
> My hope is that qemu/hvf will be able to match the performance of Veertu
> (I presume that's possible) and have good stability with networking and
> usb support, as well as obviously being an active project.
> 
> Is anyone actively working/testing/profiling the hvf accelerator to
> improve it's performance and robustness?
> 
> What can users do to provide information for developers to make such
> improvements?

No one is working on QEMU/HVF right now, I don't even own a computer
that can run it.  However I hope that the Android emulator developers
take it up.

Paolo