From: "Hal E. Fulton" <hal9000@...>
Date: 2002-12-18T02:07:02+09:00
Subject: Re: Speedy Ruby (was: Re: help -- persuade my boss to adopt ruby)

----- Original Message -----
From: "Wai-Sun Chia" <waisun.chia@hp.com>
To: "ruby-talk ML" <ruby-talk@ruby-lang.org>
Sent: Tuesday, December 17, 2002 10:42 AM
Subject: Re: Speedy Ruby (was: Re: help -- persuade my boss to adopt ruby)


> Dan Sugalski wrote:
> > Unless you got ruby to generate the C code automatically from your ruby
> > source, you're not dealing with what I was talking about.
>
> Nope. Mine was hand-coded.
> But you'd be surprised to find out that the 80-20% rule still hold; i.e.
>   80% of the time was spent in 20% of the code, so if you just optimize
> the 20%, you'd see immediate significant speedups.

It is worth mentioning that the 20% can be
very un-intuitive. Programmers are usually
very bad at guessing where the inefficiencies
are in their code, which is why a profiler
is a good idea.

Hal