[m-rev.] for review: reduce the parser's memory consumption

[Zoltan Somogyi]

On Fri, 2 Aug 2019 19:39:34 +1000 (AEST), Julien Fischer <jfischer at opturion.com> wrote:
> > For tryout and review by Julien. My laptop's timing variability is bigger
> > than the performance effect of this change; I hope you can measure its impact
> > using Opturion's server class machines.
> 
> Sure, did you have a specific test in mind?

Just tools/speedtest.

Zoltan.