[MacRuby] #1077: Performance of String

[MacRuby]

#1077: Performance of String
----------------------------------+-----------------------------------------
 Reporter:  yasuimao@…            |       Owner:  lsansonetti@…        
     Type:  defect                |      Status:  new                  
 Priority:  blocker               |   Milestone:                       
Component:  MacRuby               |    Keywords:                       
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 The performance of the following script improved dramatically with r4964,
 but the changes made on 12/17 seem to affect the performance again.

 '''Script'''
 {{{
 freq = Hash.new(0)
 10.times{File.read("test.txt").scan(/\w+/){|word| freq[word] += 1}}
 }}}

 '''File''': 1553 English words; times are all in seconds

 MacRuby 0.9 nightly 2010/12/17
 {{{
 0.54  0.52  0.52
 }}}

 MacRuby 0.9 nightly 2010/12/24
 {{{
 34.42 34.55 34.50
 }}}

 Ruby 1.8.7
 {{{
 0.28  0.26  0.26
 }}}

 I ran the script 4 times and the first one was dropped to eliminate the
 effect of MacRuby start-up time.  My Mac is Mac mini C2D 2.0GHz.

-- 
Ticket URL: <http://www.macruby.org/trac/ticket/1077>
MacRuby <http://macruby.org/>