Another huge difference between guile-1.8.8 versus guile-2.0.9 is the startup time, which makes guile-2.0.9 not at all suitable for shell scripting where guile-1.8.8 starts extremely fast. So it seems as guile-1.8.8 is something to value high in a very special way. (I've copied it to many machines, just to assure that I won't lose it)
By the way, the original problem I mentioned, i.e. lack of docs for making dynamically linked modules, where the only docs I've ever found is the make files for the box example e.g. examples/box-dynamic-module those makefiles are missing also for guile-2.0.9 OK, there is a Makefile examples/Makefile which is possibly intended to replace the separate makefiles in box, box-dynamic, box-dynamic-module but then the README files under the box directories need to be updated. On Thu, Jul 11, 2013 at 1:52 AM, Roland Orre <roland.o...@gmail.com> wrote: > On Thu, Jul 11, 2013 at 12:10 AM, Ludovic Courtès <l...@gnu.org> wrote: > >> Hello, and welcome back! :-) >> >> Roland Orre <roland.o...@gmail.com> skribis: >> >> > I now intended to start using guile again. I used guile daily for my R&D >> > from 1995 to 2008. The last guile I built for was guile-1.8.5 >> > >> > However, my old module build does no longer work with guile-1.8.8 >> > (the latest stable downloaded from savannah.gnu.org) >> >> No no no, the latest stable is 2.0.9, and it’s like night & day compared >> to 1.8. So while you’re at it, jump directly to 2.0.9. ;-) >> > > I did a few performance tests, and so far 2.0.9 performs much worse than > 1.8.8. > I do not know why, but one simple first test I did was > (define foo (fac 10000)) > which for guile-1.8.8 has as average around 60 ms but for guile-2.0.9 has > as > average around 212 ms (almost no time in gc in average). I also checked > by removing libgmp that libgmp was really used. Then I tried to run the > benchmark-suite which was also quite tedious, as they are not directly > compatible between 1.8.8 2.0.9, but those tests I succeded to run indicated > much worse performance, around 10 times slower for 2.0.9. I also checked > the results 35660 digits, and they were identical. > > I suspect something strange to be hidden there, which I'll check with some > standard benchmark tests. I found a set at > > http://www.cs.cmu.edu/afs/cs/project/ai-repository/ai/lang/scheme/code/benc > h/gabriel/gabriel.tgz > that I will try with later. > However, as guile-1.8.8 goes very very fast to build compared to > guile-2.0.9, > mostly due to compilation of ice-9 and my programs certainly need quite a > lot of adaptation for 2.0.9 I'll start with guile-1.8.8 (there was a lot > of work to > adapt them from guile-1.7 to guile-1.8 earlier). > > The fac I used above was defined as: > (define (fac n) > (define (iter n res) > (if (> n 1) > (iter (1- n) (* n res)) > res)) > (iter n 1)) > > /Roland > > >> >> Ludo’. >> >> >> >
