Re: [Qemu-devel] [PATCH v3 03/10] target/ppc: support for 32-bit carry and overflow

[David Gibson]

On Fri, Feb 24, 2017 at 09:34:32AM +1100, Richard Henderson wrote:
> On 02/23/2017 05:40 PM, Nikunj A Dadhania wrote:
> > Richard Henderson <address@hidden> writes:
> > > These functions are becoming quite large.  Are they performance critical 
> > > enough
> > > that they need to stay as inline code, or should they be moved to helpers 
> > > and
> > > share code with cpu_read/write_xer?
> > 
> > Just to boot to login prompt, these are the numbers for gen_read/write_xer:
> > 
> > helper_myprint - rd_count 231103, wr_count 68897
> > 
> > And it keeps on incrementing, maybe scope of optimization here.
> 
> That's not very large considering the total number of instructions executed
> during a boot to prompt.
> 
> Thoughts, David?

Hm, I'm not clear if that's the number of executions, or the number of
translations.

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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