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require 'benchmark/ips'
Benchmark.ips do |x|
y = '1_2_3_4_5_6_7_8_9_10'
x.report('gsub') do |_times|
y.tr('_', ' ')
end
x.report('tr') do |_times|
y.tr('_', ' ')
end
x.compare!
end
__END__
Calculating -------------------------------------
gsub 29.483k i/100ms
tr 79.170k i/100ms
-------------------------------------------------
gsub 10.420B (±23.7%) i/s - 31.106B
tr 78.139B (±20.6%) i/s - 129.289B
Comparison:
tr: 78139428607.9 i/s
gsub: 10419757735.7 i/s - 7.50x slower
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