From: Victor Shepelev <vshepelev@...>
Date: 2006-04-28T07:49:29+09:00
Subject: nil? takes much time

Hello all.

In one my class I've had very simple method:

...
def stored?
  !@db.nil?
end
...

And I've suddenly noticed (due to profile) that nil? Takes a significant
amount of time here.

Redefining the above method like

def stored?
   @db
end

(in if's it works good) speedups the entire program.

I'm a bit surprized :)

Victor.