On Sat, Jan 09, 2010 at 01:25:52PM +0000, Jon Harrop wrote:
> On Tuesday 05 May 2009 13:45:18 dmitry grebeniuk wrote:
> > 2009/5/5 Christoph Bauer <christoph.bauer@lmsintl.com>:
> > > what is the best option to do memory profiling with ocaml?
> > > Is there a patch of ocaml-memprof for 3.11.0? What about
> > > objsize?
> >
> >   If you want to use objsize with ocaml 3.11, you should get
> > the new version of objsize -- 0.12:
> > http://forge.ocamlcore.org/frs/?group_id=3
> >   OCaml has new heap since 3.11...
> 
> Can anyone elaborate on this?

Not sure about "new heap", but the way that heap pages are tracked
changed from 3.10 -> 3.11.  In 3.10 a flat bitmap was used.  This was
unsuitable for 64 bit address spaces[1] and in 3.11 a sparse structure
is used (a hash table).

Rich.

[1] https://bugzilla.redhat.com/show_bug.cgi?id=445545#c9

-- 
Richard Jones
Red Hat