From: "ara.t.howard" <ara.t.howard@...>
Date: 2007-10-27T14:18:47+09:00
Subject: Re: How fast does your Ruby run?


On Sep 20, 2007, at 4:49 PM, SpringFlowers AutumnMoon wrote:

> How fast does your Ruby run?
>
> I got 53648 iterations per second running the following program,
> on an Intel 3.2 GHz HT, Win XP machine:
>
> --------
>
> C:\> ruby calculate.rb
> 55
>
> Ruby 1.8.6 patch 0 on i386-mswin32
> It took 18.64 seconds to run. 53648 iterations per second.
>
> --------
>
> n = 1_000_000
>
> start_time = Time.now
>
> for i in 1..n
>   t = (1..10).inject {|x, y| x + y }
> end
>
> finish_time = Time.now
>
> p t
>
> puts
> print "Ruby ", RUBY_VERSION, " patch ", RUBY_PATCHLEVEL, " on ",
> RUBY_PLATFORM
>
> puts
> print "It took #{finish_time - start_time} seconds to run."
> print " #{(n / (finish_time - start_time)).to_i} iterations per
> second.\n"



cfp:~ > cat a.rb
require 'narray'

n = 1_000_000
t = nil

start_time = Time.now

n.times{ t = NArray.int(10).indgen!(1).sum }

finish_time = Time.now

p t

puts
print "Ruby ", RUBY_VERSION, " patch ", RUBY_PATCHLEVEL, " on ",
RUBY_PLATFORM

puts
print "It took #{finish_time - start_time} seconds to run."
print " #{(n / (finish_time - start_time)).to_i} iterations per  
second.\n"


cfp:~ > ruby a.rb
55


2GHz osx

Ruby 1.8.6 patch 0 on i686-darwin8.9.1
It took 2.893815 seconds to run. 345564 iterations per second.



a @ http://codeforpeople.com/
--
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better. simply reflect on that.
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