[MacRuby] #1142: Array#pack performance while converting array of ASCII values to string
MacRuby
ruby-noreply at macosforge.org
Mon Jan 31 14:08:12 PST 2011
#1142: Array#pack performance while converting array of ASCII values to string
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Reporter: justin@… | Owner: lsansonetti@…
Type: defect | Status: new
Priority: major | Milestone:
Component: MacRuby | Keywords:
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It takes MacRuby over 1600x longer than CRuby 1.9.2 to convert an array of
ASCII characters to a 1MB string using Array#pack.
Simular to ticket 1136:
https://www.macruby.org/trac/ticket/1136
Using MacRuby r5214 that includes the fix from ticket 1136.
test.rb:
{{{
require 'benchmark'
ary = Array.new(1024*1024,0)
ret = Benchmark.measure do
ary.pack('C*')
end
puts ret
}}}
benchmarks:
{{{
~ > ruby ./test.rb
0.040000 0.000000 0.040000 ( 0.043437)
~ > macruby ./test.rb
87.690000 26.300000 113.990000 ( 69.515317)
}}}
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Ticket URL: <http://www.macruby.org/trac/ticket/1142>
MacRuby <http://macruby.org/>
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