From: "Florian Groß" <florgro@...>
Date: 2005-04-13T09:18:42+09:00
Subject: Re: Elapsed time -- tiny code snippet

Hal Fulton wrote:

> Here's a poor man's profiler -- only good for finding the
> time in seconds it took to execute a code block. (I used
> this today in a context where I was doing several operations
> that invoked external programs and such.)
> 
> I put it inside Time just for convenience.
> 
>   class Time
>     def self.elapse
>       raise "Need block" unless block_given?
>       t0 = Time.now
>       yield
>       Time.now - t0
>     end
>   end
> 
>   secs = Time.elapse { do_something() }

I'd suggest converting the times to floats (via .to_f) before 
subtracting -- it ought to be quite a bit more precise that way.