From: Victor Shepelev <vshepelev@...>
Date: 2006-05-24T16:06:02+09:00
Subject: Re: How use Profiling, a Quick Guide.

From: John Carter [mailto:john.carter@tait.co.nz]
Sent: Wednesday, May 24, 2006 1:10 AM
> On Tue, 23 May 2006, Mark Somerville wrote:
> > Can anyone recommend some good or tutorials on profiling and
> benchmarking?
> > Although I have used them both (from the standard library), I feel I
> lack
> > fundamental knowledge about how to go about it.
> 
> I don't know of any Good one but here are some things I do...

Outstanding point! Some things that are worth mentioning:

1. Unfortuantely, Windows users have lack of Unix power tools, which are
always helpful for analysys. But some of them can be found at
http://gnuwin32.sourceforge.net/

2.
>   * 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.)

Here can help my Module#add_tracer, described here
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/192291

Victor.