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December 26, 2015 20:29
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performance of Ruby Proc and block
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require 'benchmark' | |
def outer11(&bl) | |
inner1(&bl) | |
end | |
def outer12(&bl) | |
inner2(&bl) | |
end | |
def outer21 | |
inner1 {yield} | |
end | |
def outer22 | |
inner2 {yield} | |
end | |
def inner1(&bl) | |
bl.call | |
end | |
def inner2 | |
yield | |
end | |
n = 100000 | |
Benchmark.bmbm(10) do |rpt| | |
rpt.report("outer11") do | |
n.times {outer11{}} | |
end | |
rpt.report("outer12") do | |
n.times {outer12{}} | |
end | |
rpt.report("outer21") do | |
n.times {outer21{}} | |
end | |
rpt.report("outer22") do | |
n.times {outer22{}} | |
end | |
end | |
__END__ | |
Output: | |
Rehearsal --------------------------------------------- | |
outer11 0.890000 0.010000 0.900000 ( 0.894500) | |
outer12 0.370000 0.000000 0.370000 ( 0.364880) | |
outer21 0.770000 0.000000 0.770000 ( 0.776638) | |
outer22 0.170000 0.000000 0.170000 ( 0.163393) | |
------------------------------------ total: 2.210000sec | |
user system total real | |
outer11 0.490000 0.000000 0.490000 ( 0.491969) | |
outer12 0.400000 0.000000 0.400000 ( 0.396264) | |
outer21 0.760000 0.000000 0.760000 ( 0.764508) | |
outer22 0.160000 0.000000 0.160000 ( 0.161982) |
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