rational_performance.rb
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require 'benchmark'
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require 'rational'
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$result = nil |
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$tests = <<END |
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Rational(1, 2) + Rational(3, 4) |
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Rational(1, 2) + 10 |
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Rational(1, 3) + 10.6 |
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10 + Rational(1, 2) |
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10.6 + Rational(1, 3) |
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|
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Rational(1, 2) - Rational(3, 4) |
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Rational(1, 2) - 10 |
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Rational(1, 3) - 10.6 |
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10 - Rational(1, 2) |
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10.6 - Rational(1, 3) |
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Rational(1, 2) * Rational(3, 4) |
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Rational(1, 2) * 10 |
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Rational(1, 3) * 10.6 |
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10 * Rational(1, 2) |
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10.6 * Rational(1, 3) |
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Rational(1, 2) / Rational(3, 4) |
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Rational(1, 2) / 10 |
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Rational(1, 3) / 10.6 |
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10 / Rational(1, 2) |
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10.6 / Rational(1, 3) |
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Rational(1, 2) ** Rational(3, 4) |
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Rational(1, 2) ** 10 |
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Rational(1, 2) ** -10 |
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Rational(1, 2) ** 0 |
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Rational(1, 3) ** 10.6 |
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10 ** Rational(1, 2) |
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10.6 ** Rational(1, 2) |
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Rational(1, 2) == Rational(3, 4) |
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Rational(1, 2) == 10 |
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Rational(1, 3) == 10.6 |
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10 == Rational(1, 2) |
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10.6 == Rational(1, 3) |
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Rational(1, 2) <=> Rational(3, 4) |
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Rational(1, 2) <=> 10 |
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Rational(1, 3) <=> 10.6 |
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10 <=> Rational(1, 2) |
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10.6 <=> Rational(1, 3) |
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- Rational(1, 2) |
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- Rational(-1, 3) |
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- Rational(1, 4) |
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Rational(1, 2).abs |
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Rational(-1, 3).abs |
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Rational(1, 4).abs |
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Rational(1, 2).zero? |
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Rational(0, 2).zero? |
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Rational(1, 2).nonzero? |
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Rational(0, 2).nonzero? |
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Rational(3, 4).to_s |
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Rational(5, 6).inspect
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END |
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if ARGV.include?('--validate') |
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n = 1
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instance_eval($expr = <<"END", __FILE__, __LINE__) |
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def test_it |
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result = [ |
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#{$tests.split("\n").reject{|x| x =~ /^\s*$/}.join(",\n")} |
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] |
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if $result |
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unless result == $result |
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pp result |
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pp $result |
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raise "Assertion failed" |
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end |
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else |
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$result = result |
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end |
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end
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END |
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else
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n = 100000
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n /= 2
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instance_eval($expr = <<"END", __FILE__, __LINE__) |
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def test_it |
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#{$tests} |
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end
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END |
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end
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$stderr.puts $expr |
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Benchmark.bm(40) do | bm | |
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1.times do |
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ObjectSpace.garbage_collect
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bm.report("test_it") do |
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n.times do
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test_it |
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end
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end
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end
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######################################################################
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if (require('ks_rational') rescue nil) |
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ObjectSpace.garbage_collect
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bm.report("test_it ks_rational") do |
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n.times do
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test_it |
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end
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end
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end
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end
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