From: Daniel Carrera <dcarrera@...>
Date: 2003-01-23T04:53:11+09:00
Subject: Re: Single vs double quotes and performance?

On Thu, Jan 23, 2003 at 03:40:22AM +0900, E F van de Laar wrote:
> Is my nitpicking going to help me out in the long run or am I just
> waisting my time here.  This minor issue has been itching my brain
> for a while now. :)

$ cat single_quotes  
100_000.times { puts 'Hello World' }
$ cat double_quotes 
100_000.times { puts "Hello World" }

$ time ruby single_quotes
[snip]
real    0m22.812s
user    0m2.220s
sys     0m1.660s
$ time ruby double_quotes
real    0m21.614s
user    0m2.100s
sys     0m1.600s

The significant measure is 'user'.  You can expect to save 0.1 seconds 
after printing 100 thousand strings.

I hope this helps.  :)

-- 
Daniel Carrera
Graduate Teaching Assistant.  Math Dept.
University of Maryland.  (301) 405-5137