Re: [Qemu-devel] [RFC PATCH v8 08/21] cpu: replay instructions sequence

[Paolo Bonzini]

On 02/02/2015 13:28, Pavel Dovgaluk wrote:
>>> > >                              cpu->exception_index = EXCP_INTERRUPT;
>>> > >                              next_tb = 0;
>>> > > +                            qemu_notify_event();
>> > 
>> > Why is this needed?
> It is needed to wake up iothread in replay mode.
> Otherwise it waits for additional time and replay becomes too slow.

What event (something from a timerlist?) is ready, that has not been
notified to the iothread yet?  qemu_notify_event() should never be
needed in common case.  It's probably missing somewhere else.

Paolo