Re: [Ocaml-lib-devel] Efficiency studies of enums?

[Nicolas C. <nca...@mo...>]

Christian Stork wrote:
> Hi extlibbers,
> 
> Here's a question which came to my mind a long time ago when I first
> looked at the implementation of extlib's enums:
> 
>     What are the measurable benefits of the lazy enum construct compared
>     against the naive alternative of building intermediate data
>     structures?
> 
> I haven't seen any performance measurements.  Obviously, it's a good
> idea for really big arrays/lists, but what should be considered "really
> big" in this context?
> 
> Anyway, just curious,
> Chris

I didn't do any serious benchmarks.
In general, I think that lazy operations tends to be slower than 
imperative ones, especially in OCaml where allocation is very fast. 
Using enums is not a choice of performances but of flexibility.

Nicolas