From: Josh Cheek <josh.cheek@...>
Date: 2009-08-20T03:45:22+09:00
Subject: Re: Confirm my Performance Test Against Java?

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My previous version would probably be better like this:

start = Time.now
puts "Starting to read file ..."
puts "The number of tokens is: %d." % File.open(ARGV[0]){|f|
f.inject(0){|a,l| a+l.split.length } } ,
  "It took #{(Time.now - start) * 1000} ms"

That way if the file is enormous, it prints the "starting to read file ..."
immediately.


On Wed, Aug 19, 2009 at 1:17 PM, Josh Cheek <josh.cheek@gmail.com> wrote:

> A version of Mike Sassak's gist
>
> start = Time.now
> printf "Starting to read file ...\nThe number of tokens is: %d.\nIt took
> %.2f ms\n" , File.open(ARGV[0]){|f| f.inject(0){|a,l| a+l.split.length } } ,
> (Time.now - start) * 1000
>
> I won't call it elegant, that seems subjective to me, but I do appreciate
> brevity.
>
>
>
> On Wed, Aug 19, 2009 at 12:52 PM, Ben Christensen <
> benjchristensen@gmail.com> wrote:
>
>> pharrington, in your response you stated:
>>
>> "as the code that happens is neither the most "elegant" *nor* fastest
>> Ruby can do."
>>
>> Can you please provide me a re-write of the Ruby code I used that is
>> elegant and fast so I can learn from you?
>>
>> I consider myself quite advanced in Java (14 years of experience there)
>> but obviously do not have experience in Ruby for performance tuning and
>> optimization.
>>
>> I would appreciate your demonstration of how to perform the task I have
>> attempted in Ruby using an appropriate "Ruby" approach that achieves the
>> highest performance possible and the "elegance" spoke of.
>>
>> Thank you.
>>
>> Ben
>>
>> --
>> Posted via http://www.ruby-forum.com/.
>>
>>
>

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