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[Caml-list] Stopping a value from getting GC'd

Jonathan Roewen
- Bardur Arantsson
  - Nathaniel Gray
    - Alain Frisch
      - Nathaniel Gray
    - Markus Mottl
      - skaller
    - Richard Jones

Date:	-- (:)
From:	Markus Mottl <markus.mottl@g...>
Subject:	Re: [Caml-list] Cost of register_global_root (was: Stopping a value from getting GC'd)

On 8/17/05, Nathaniel Gray <n8gray@gmail.com> wrote:
> One thing that the FM doesn't mention is how expensive it is to
> register a global root.  Can I register thousands of them or will
> there be performance problems?

There is a severe performance penalty for registering many thousands
of roots as I have seen in one of our applications.  AFAIK, they are
scanned at each minor collection.  This will drive up CPU-usage even
if your program doesn't do much otherwise.  Maybe the GC could be
improved in that area.

Regards,
Markus

-- 
Markus Mottl        http://www.ocaml.info        markus.mottl@gmail.com