[gambit-list] Gambit-C Debian 4.0.b17 Packages Available

[Kurt B. Kaiser]

Bradley Lucier <lucier at math.purdue.edu> writes:

> With later versions of gcc, --enable-single-host is not so bad.  (I  
> did a *lot* of benchmarking with Gambit-generated C files and the gcc  
> developers were responsive.)  And leaving it off absolutely *kills*  
> performance for many programs.

I ran the package build w/o it:

12 min 37 sec  Max memory 187M during compile.

And with it:

19 min 6  sec  Max memory 396M during compile of _io.c

gcc (GCC) 4.0.3 20060304 (prerelease) (Debian 4.0.2-10)

The overall average memory use during compile is a lot higher.

But it doesn't seem ridiculous, so I will add this config option.

> If you wanted to reduce the resources needed to compile Gambit, you  
> might be better off setting
>
> [lindv2:~/Desktop] lucier% diff -p  /usr/local/Gambit-C/include/ 
> gambit.h gambit.h
> *** /usr/local/Gambit-C/include/gambit.h        Thu Jan 19 15:17:50 2006
> --- gambit.h    Wed Jan 25 13:03:48 2006
> ***************
> *** 1192,1197 ****
> --- 1192,1198 ----
>    * Determine optimization goal.
>    */
>
> + #define ___OPTIMIZE_SPACE

Can I assume that this macro is effective for all gsc compiles, not
just for the build of Gambit-C itself?  If the former, I'd be
reluctant to add it since most people have quite a bit of memory these
days.

-- 
KBK