Re: [libcvd-members] libcvd Makefile.in configure.in cvd/fast_corner...

[Georg Klein]

Edward Rosten wrote:
> On Wed, 25 Jul 2007, Georg Klein wrote:
>
> > Hmm, I'm having a bit of trouble with the new FAST code - it's just a
> > compilation issue really:
> > the fast_score_foo.cxx files take a _long_ time to compile and the
> > resulting .o files can be huge.
>
> Generally, yes.
>
> > e.g, fast_8_score compiles to a 13-meg .o file - after strip it's
> > still 88k (which is substantial!)
> >
> > fast_7_score is still compiling after 10 minutes, with gcc taking up
> > 1.4 gigabytes of RAM. hefty.
>
> It takes me 30 seconds and a few hudred MB on my compiler.

Few hundred MB per gcc task seems standard these days (be wary of compiling 
with -j).


I think mine finished after an hour - the resulting .o file is 68 megabytes. 
This seems excessive for a single function. (After strip it's 160K). 
libcvd.a ends up a whopping 100 meg, libcvd.so 30 meg.

Oddly, compiling without -g makes no difference.

FWIW, the fedora 6 compiler (4.1.2) behaves the same way, all on 64-bit 
machines.

> I've added some configure options so you can disable some FAST
> detectors.
> Try this:
>
> --enable-missingfast=7,8,10,11,12

Cool.