On Tue, Aug 27, 2013 at 04:17:56PM +0300, Gleb Natapov wrote:
> On Tue, Aug 27, 2013 at 03:18:16PM +0200, Benoît Canet wrote:
> >
> > Hello Eduardo,
> >
> > I read a bit about caches on wikipedia.
> >
> > If I understand correctly changing the CPUID L3 cache infos in QEMU will
> > change
> > the value displayed in the guest /proc/cpuinfo but will not change the size
> > of
> > the l3 cache used by the hardware. So I am chasing a cosmetic bug.
> > If it right ?
> >
> Right.
>
Well, actually not entirely. An application can query cache sizes and
adjust its algorithms accordingly in which case performance can be
suboptimal if information in a guest is not accurate.
--
Gleb.
