From: Paul [mailto:[EMAIL PROTECTED]]
>
> Anybody know offhand *why* my() lexicals are supposedly faster?
Because a dynamic variable allocates a "new" value at runtime which occludes
the global value until it's scope expires. In contrast, a lexical variable
is unique to its code value's (CV) context which was determined at parse
time. However, if you recursively call that CV, then Perl has to allocate a
new value for the lexical.
Urban legend says that lexicals are on average 10% faster than dynamic
variables. I wonder if that is true... and what difference recursion makes.
I wonder how you'd write a script to benchmark that and actually benchmark
the right thing...