Re: [Caml-list] ocaml-3.05: a performance experience

["Alexander V. Voinov" <avv@quasar.ipa.nw.ru>]

Hi Gerd,

Gerd Stolpmann wrote:
> I think you observe GC compaction. You can turn it off:
> OCAMLRUNPARAM="O=1000000" (or Gc.set).

Thank you. This eliminated 2/3 of the difference and adding
Gc.space_overhead = 95 returned the app to the numbers of 3.04, both for
the speed and for the footprint.

> If XML validation is not needed, you could also rewrite your program
> to use the new event-based parsing in PXP-1.1.90. That would completely
> avoid to represent the XML tree in memory (and increase the speed, because
> GC of large memory footprints is expensive).

thanks again, but it's not yet officially announced, is it? I managed to
download it, but I didn't find any direct link. Also, it this parsing
mode mentioned in the manual?

Alexander
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