On Wed, Apr 27, 2016 at 12:44 PM, Chris Marshall <[email protected]>
wrote:
> Hi David-
>
> I did forget another component which may be applicable to the PDL
> script performance: the move to 64bit indexing which while very general,
> will clearly impact the memory overhead etc. from the indexing and
> computations. I would guess that we may have exceeded the cache
> line size which would definitely slow things down as well.
>
>
I just checked on my cygwin/win7 PDL-2.015 install and the pdl struct is a
cache-busting 328 bytes. I wonder how much difference if we whittled it
down to 256 or less?
--Chris
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