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

[David Gibson <david@gibson.dropbear.id.au>]

[-- Attachment #1: Type: text/plain, Size: 1026 bytes --]

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 <rth@twiddle.net> 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

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 819 bytes --]