Re: [Qemu-devel] Parallel thread execution on QEMU

[Paolo Bonzini]

Il 13/06/2014 15:21, Peter Maydell ha scritto:
> On 13 June 2014 13:49, kostas kotzak <address@hidden> wrote:
> > > It seems that COREMU multi-thread approach is very simple and effective. Is
> > > there a reason that QEMU org does not adopt any of these solutions? At least
> > > for the two most popular architectures x86 and ARM?
> The short answer is "because there's a big difference between
> 'a research project that aims to show feasibility and run some
> benchmarks' and 'a portable and robust product-quality implementation
> that we could maintain and release'". So far nobody has shown
> much interest in working on the latter.

FWIW, I hope to pick up again the work that I talked about at KVM Forum 
2013.  If completed, this should make multithreaded TCG much simpler 
(though not easy by any means).  I don't plan to work on multithreaded 
TCG myself, though.

http://www.linux-kvm.org/wiki/images/1/17/Kvm-forum-2013-Effective-multithreading-in-QEMU.pdf

Paolo