From: Sam Roberts <sroberts@...>
Date: 2006-06-02T05:17:08+09:00
Subject: Re: How use Profiling, a Quick Guide.

On Fri, Jun 02, 2006 at 04:35:28AM +0900, Dave Howell wrote:
> > * Look at the top most items in the profile list. Usually they are
> >   standard library functions. Silly things like [] or +...
> >   Ask your self, "What could be calling these thing so often?
> >   Can I make it do it less often? eg. Cache the result etc.)
> 
> Er, the profile list? Push "Where do I find/how do I generate a 
> 'profile list'?" onto the question_stack

'profile', in the std lib

> question_stack << "[Error: File 'strace' Not Found]"

ktrace on BSD systems

> > * Large number of calls to .size and .length and .count_objects 
> >methods are a
> >   clue some nidjit somewhere is doing something really N^2 stupid 
> >like...
> >    for( i=0; i < container.count_objects(); i++) {
> >    }
> 
> question_stack << "What exactly is stupid about that? And what's the 
> smart alternative?
max=container.count_objects()
for( i=0; i < max; i++) {
}

container.each....

Sam