On Sunday 02 November 2008 02:52:49 Michał C wrote: > Hi! > > I'm working on a physical based ray(path) tracer and the performance > is one of my top priorities (just after the image quality). > So I have a question about optimization: can You share some tips or > maybe optimizing strategies to improve the speed of programs? > > here is my code: http://neos1.ovh.org/ray3.ml, > > and here is how I compile it: > ocamlopt -inline 100 -unsafe -ffast-math str.cmxa -I +lablgl > lablgl.cmxa lablglut.cmxa -o ray ray.ml
Looks good but get rid of -unsafe and use records to represent vectors instead of arrays and compile in 64-bit and get rid of -ffast-math. I don't know if it affects performance but get rid of conditions returning bool constants: if hc2 < 0. then false else true Should be: hc2 >= 0. > Maybe You can take a look, sure I don't expect You to look through it > in some hardcore way, but You know, maybe there are some obvious > mistakes or unnecessary boxing which will spot your eye. > > Thanks in advance, > oh and if you possibly want to see the development or how the program > works - http://neos1.wordpress.com May I have an example scene description file that I can use for profiling? Without it, I have no way to direct my effort... -- Dr Jon Harrop, Flying Frog Consultancy Ltd. http://www.ffconsultancy.com/?e _______________________________________________ Caml-list mailing list. Subscription management: http://yquem.inria.fr/cgi-bin/mailman/listinfo/caml-list Archives: http://caml.inria.fr Beginner's list: http://groups.yahoo.com/group/ocaml_beginners Bug reports: http://caml.inria.fr/bin/caml-bugs
