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require 'benchmark'
COUNT = 10_000_000
COUNT_STR = "10M"
def bench_upto(bm)
puts "Integer#upto -----------------"
bm.report("#{COUNT_STR} Integer#upto, arg block") do
1.upto(COUNT) { |i| i }
end
bm.report("#{COUNT_STR} Integer#upto, arg block and add") do
1.upto(COUNT) { |i| i + 1 }
end
bm.report("#{COUNT_STR} Integer#upto, no-arg block") do
1.upto(COUNT) { 0 }
end
bm.report("#{COUNT_STR} Integer#upto, no-arg block and add") do
i= 0
1.upto(COUNT) { i += 1 }
end
puts "Integer#downto -----------------"
bm.report("#{COUNT_STR} Integer#downto, arg block") do
COUNT.downto(1) { |i| i }
end
bm.report("#{COUNT_STR} Integer#downto, arg block and add") do
COUNT.downto(1) { |i| i + 1 }
end
bm.report("#{COUNT_STR} Integer#downto, no-arg block") do
COUNT.downto(1) { 0 }
end
bm.report("#{COUNT_STR} Integer#downto, no-arg block and add") do
i= 0
COUNT.downto(1) { i += 1 }
end
puts "Integer#times -----------------"
bm.report("#{COUNT_STR} Integer#times, arg block") do
COUNT.times { |i| i }
end
bm.report("#{COUNT_STR} Integer#times, arg block and add") do
COUNT.times { |i| i + 1 }
end
bm.report("#{COUNT_STR} Integer#times, no-arg block") do
COUNT.times { 0 }
end
bm.report("#{COUNT_STR} Integer#times, no-arg block and add") do
i= 0
COUNT.times { i += 1 }
end
end
if $0 == __FILE__
(ARGV[0] || 5).to_i.times { |iter|
puts "============= Iteration #{iter + 1} ============= "
Benchmark.bm(40) {|bm|
bench_upto(bm)
}
}
end
|
