I replaced call of 'malloc' in 'caml_alloc_for_heap' function to mmap, and
'free' in 'caml_free_for_heap' to unmap. Unused memory is freed after
Gc.compaction.

On Sat, Apr 21, 2012 at 11:26 AM, <rixed@happyleptic.org> wrote:

> There is a commit dating from a few days ago that might
> be related to your problem (commit msg was :
> PR#5389: compaction sometimes leaves a very large heap)
>
>
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