Re: Game engine test

[Mike Woodworth <mike at divergentmedia dot com>]

On Mar 25, 2006, at 3:49 PM, Lo Saeteurn wrote:

> > If you're running through byte-by-byte (or vector by vector) the  
> > function call overhead really adds up, and until RB can manipulate  
> > memory directly it has no chance of beating or even approaching  
> > the speed of C code in this area.
> Is memoryblock.byte(offset) not equivalent to characters of myarray 
> [offset] in C? Why the difference in speed?
huge!  the problem is, .byte has the overhead of a function plus the  
cost of rb's constant bounds checking, endian checks/conversions,  
etc.  doing this in veclib pushes all this, plus the loop costs into  
highly optimized code.
mike
--
Mike Woodworth
mike at divergentmedia dot com


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