ruby string compare

string_compare.rb

require 'benchmark'

def repeat(n=10_000_000, &blk); n.times {yield}; end
string = 'string'

Benchmark.bm do |x|
  x.report("warm-up single quotes") { repeat {'this is a string'} }
  x.report("interpolated double quotes with variable") { repeat {"this is a #{string}"} }
  x.report("double quotes") { repeat {"this is a string"} }
  x.report("single quotes") { repeat {'this is a string'} }
  x.report("interpolated brackets") { repeat {%Q[this is a string]} }
  x.report("hex") {repeat {[0x74, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x61, 0x20, 0x73, 0x74, 0x72, 0x69, 0x6e, 0x67]} }
end

#                                           user     system      total        real
# warm-up single quotes                     1.410000   0.000000   1.410000 (  1.410171)
# interpolated double quotes with variable  2.380000   0.000000   2.380000 (  2.384271)
# double quotes                             1.400000   0.010000   1.410000 (  1.398493)
# single quotes                             1.400000   0.000000   1.400000 (  1.398184)
# interpolated brackets                     1.390000   0.000000   1.390000 (  1.389686)
# hex                                       2.670000   0.130000   2.800000 (  2.791863)