Created
October 13, 2009 02:30
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require 'benchmark' | |
TIMES = 1_000_000 | |
s = "a string" | |
Benchmark.bmbm do |x| | |
x.report("delete") do | |
TIMES.times { s.delete("rin") } | |
end | |
x.report("multiple delete") do | |
TIMES.times { s.delete("r").delete("i").delete("n") } | |
end | |
x.report("tr") do | |
TIMES.times { s.tr("rin", "") } | |
end | |
x.report("gsub with regexp") do | |
TIMES.times { s.gsub(/[rin]/, "") } | |
end | |
end | |
# Rehearsal ---------------------------------------------------- | |
# delete 2.030000 0.010000 2.040000 ( 2.028561) | |
# multiple delete 5.710000 0.010000 5.720000 ( 5.718976) | |
# tr 2.380000 0.000000 2.380000 ( 2.376503) | |
# gsub with regexp 5.780000 0.020000 5.800000 ( 5.810256) | |
# ------------------------------------------ total: 15.940000sec | |
# user system total real | |
# delete 2.030000 0.000000 2.030000 ( 2.026632) | |
# multiple delete 5.730000 0.010000 5.740000 ( 5.739280) | |
# tr 2.390000 0.000000 2.390000 ( 2.388175) | |
# gsub with regexp 5.820000 0.010000 5.830000 ( 5.836098) |
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