Created
December 3, 2015 14:23
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require "thread" | |
require "benchmark" | |
COUNT = 50000000 | |
@m1 = @m2 = @m3 = @m4 = @m5 = @m6 = @m7 = @m8 = @m9 = @m10 = @m11 = @m12 = nil | |
@m4 = "foo" | |
@m8 = "bar" | |
@calls = 0 | |
def m1(i) | |
@calls += i | |
end | |
def m2(i) | |
@calls += i | |
end | |
def m3(i) | |
@calls += i | |
end | |
def m4(i) | |
@calls += i | |
end | |
def m5(i) | |
@calls += i | |
end | |
def m6(i) | |
@calls += i | |
end | |
def m7(i) | |
@calls += i | |
end | |
def m8(i) | |
@calls += i | |
end | |
def m9(i) | |
@calls += i | |
end | |
def m10(i) | |
@calls += i | |
end | |
def m11(i) | |
@calls += i | |
end | |
def m12(i) | |
@calls += i | |
end | |
ms = [method(:m4), method(:m8)] | |
Benchmark.bmbm(40) do |bm| | |
bm.report("loop do") do | |
@calls = 0 | |
COUNT.times.each do | |
ms.each do |m| | |
m.call(1) | |
end | |
end | |
end | |
end | |
puts("calls=#{@calls}") | |
Benchmark.bmbm(40) do |bm| | |
bm.report("if") do | |
@calls = 0 | |
COUNT.times.each do | |
m1(1) if @m1 | |
m2(1) if @m2 | |
m3(1) if @m3 | |
m4(1) if @m4 | |
m5(1) if @m5 | |
m6(1) if @m6 | |
m7(1) if @m7 | |
m8(1) if @m8 | |
m9(1) if @m9 | |
m10(1) if @m10 | |
m11(1) if @m11 | |
m12(1) if @m12 | |
end | |
end | |
end | |
puts("calls=#{@calls}") |
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Rehearsal ---------------------------------------------------------------------------- | |
loop do 9.630000 0.170000 9.800000 ( 9.902000) | |
------------------------------------------------------------------- total: 9.800000sec | |
user system total real | |
loop do 8.580000 0.040000 8.620000 ( 8.716000) | |
calls=100000000 | |
Rehearsal ---------------------------------------------------------------------------- | |
if 7.300000 0.030000 7.330000 ( 7.231000) | |
------------------------------------------------------------------- total: 7.330000sec | |
user system total real | |
if 7.030000 0.020000 7.050000 ( 7.158000) | |
calls=100000000 |
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