Re: [PATCH 0/4] target/ppc: Use probe_access

[Aleksandar Markovic]

On Thu, Jan 30, 2020 at 5:09 PM Richard Henderson
<address@hidden> wrote:
>
> On 1/29/20 5:35 PM, Aleksandar Markovic wrote:

> > My additional concern, of course, is: Are other targets exposed to 
> > performance
> > degradation, and why?
>
> Potentially, yes.  However:
>
> It requires lots of loads in a loop, on a hot path.  I would not have guessed
> that the ppc32 Load Multiple Word (et al) was on a hot path at all, since the
> instructions are deprecated.  But that's what an ancient os gets you, I 
> suppose.
>

OK.

>
> r~