Re: LuaJIT roadmap 2008

[Jean-Claude Wippler <jcw@...>]

On 1 Feb 2008, at 22:22, Mike Pall wrote:

> If, on the other hand:
>
> a) the loop you mention is re-written in Lua,
> b) the variable r is a table, and
> c) r.a is a plain table field lookup.
>
> ... then the compiler could probably optimize most of the
> overhead away.

Yes, I figured that would be more effective. Well, I can't alter b)  
and c), but I *could* switch to a Lua loop. Will report back once I  
know more.

> Rules of thumb: write all of it in Lua, use Lua tables
> exclusively for data structures, avoid frequent upcalls from C to
> Lua, avoid calling "black-box" C functions in tight loops.


Interesting. Thanks,

-jcw