Re: RFC 35 / Re: perl6-internals-gc sublist

[Nick Ing-Simmons]

Chaim Frenkel <[EMAIL PROTECTED]> writes:
>
>And why carry around IV/NV and ptr? Make it into a union, to allow room.

_my_ original "ramblings" posting did.

I kept the triple to pad the thing to 8 words.
Partly as devil's advocate against the "squeeze it all into one word" camp ;-)

Essentially what I am proposing is removing the sv_any indirection for 
the simple scalar cases this reduces housekeeping, indirections 
and keeps actual data near "SV/PMC" for cache reasons.

>
>The string/number duality should be handled by the vtbl. So a string
>that is never accessed as a number, doesn't waste the space. And
>numbers that are rarely accessed as a string save some room. And
>as needed the vtbl can be promoted to a duality version that maintains
>both.

All true - but we can minimize the malloc-ing that such conversions entail
if we have a "reasonable" amount of (multi-purpose) storage in the root.

-- 
Nick Ing-Simmons