Compile Ruby code?

thomthom · 11 Jun 2009, 12:02

From http://code.google.com/intl/nb/apis/sketchup/docs/faq.html - "My script is slow. How can I improve performance?"

Use a compiled Ruby extension module to do the work in compiled code.

How do you do that?

tbd · 11 Jun 2009, 12:11

you don't compile Ruby code, you need to write the code in C (or other language that creates a DLL on Windows). take a look at http://www.rubyinside.com/how-to-create-a-ruby-extension-in-c-in-under-5-minutes-100.html

thomthom · 11 Jun 2009, 12:20

Ah. I had seen some .so files some times and I thought maybe these where "compiled ruby scripts".

tomasz · 11 Jun 2009, 17:46

@unknownuser said:

you don't compile Ruby code, you need to write the code in C (or other language that creates a DLL on Windows)

What about Mac? Is it more complicated?

tbd · 11 Jun 2009, 18:02

@unknownuser said:

What about Mac? Is it more complicated?

if you don't use Windows specific code than you just compile for Mac and done. in the article it said "this was all tested on OS X"

AdamB · 11 Jun 2009, 18:38

But before you go down the C++ route, I'd really suggest looking carefully at your Ruby and ensuring its as fast as it can be.

Make sure you're not creating lots of objects. Make sure you cache intermediate results. Make sure you don't use the fancy Ruby expressions for loops which are slow. Make sure you avoid at all costs any Struct stuff which is insanely slow.
And on..

Adam

thomthom · 11 Jun 2009, 18:48

@adamb said:

Make sure you don't use the fancy Ruby expressions for loops which are slow.

Which are these?

@adamb said:

Make sure you avoid at all costs any Struct stuff which is insanely slow.

Structs?

I'm not planning on compiling C++ stuff, not my cup of tea. I was just curious about this "compiled ruby" stuff.

tomasz · 29 Jul 2009, 20:05

@unknownuser said:

take a look at http://www.rubyinside.com/how-to-create-a-ruby-extension-in-c-in-under-5-minutes-100.html

I am on completely unknown territory and have stopped on the 'make' command.
I presume it is the command responsible for compiling the C code with the makefile created in a previous step.

I would like to recreate the MyTest in VC++ 2008 Express Edition... and I am lost. I will dig through internet to understand the whole process, but if someone can explain me in few words how to compile the example with VC++2008 will be thankful.

Tomasz