Original bug ID: 4145
Reporter: Hendrik Tews
Status: closed (set by @damiendoligez on 2006-11-15T12:19:42Z)
Resolution: not fixable
Priority: normal
Severity: feature
Version: 3.09.3
Category: ~DO NOT USE (was: OCaml general)
Monitored by: "Hendrik Tews"

Bug description

caml_oldify_local_roots scans all global C roots at each minor
collection, even if the corresponding data has long been moved to
the major heap. Combined with the small default for minor heap
this gives a big performance hit on programs with lots (~10**6)
of global C roots.

The feature wish is to let caml_oldify_local_roots only scan
roots that point into the minor heap.

Additional information

see ocaml list threads
http://caml.inria.fr/pub/ml-archives/caml-list/2004/07/84cd291931627c13faf56a259026885c.en.html
http://caml.inria.fr/pub/ml-archives/caml-list/2006/10/93f3eece137374dc6f2b3b5149f8ecab.en.html