Re: [Qemu-devel] Monitor Memory Accesses

[Andrea Pellegrini]

I agree.
I only need a basic timing simulation, I can start simply with CPI=1,
issue one instruction per clock, assume a perfect branch predictor and
calling good for right now.
Thanks for the link to the code, I'll take a look at your patch in the
afternoon,
~Andrea

Vince Weaver wrote:
> On Wed, 18 Feb 2009, Andrea Pellegrini wrote:
> > nice to talk to you again. I figured that we are trying to do 
> > basically the same thing. Are you able to use the traces from Qemu 
> > with Dinero? If so, in case of cache miss, can you stall the 
> > execution of Qemu for some cycles?
>
> You can use Qemu to generate traces for Dinero, patches for that were 
> previously mentioned in this thread.
>
> Stalling is meaningless though... Qemu is not cycle-accurate.
>
> If you really want cycle accurate values, you're going to have to feed 
> the traces from Qemu into a timing simulator.  It might be possible to 
> create a simple mips timing simulator that hooks into Qemu (see my 
> wddd 2008 paper) but that would involve significant hacking that's not 
> really related to Qemu development.
>
> Vince