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February 16, 2012 18:03
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strings: single vs. double quotes
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| $ ruby strings.rb [1.8.7-p357] | |
| user system total real | |
| double quote | |
| assignment: 1.580000 0.000000 1.580000 ( 1.575944) | |
| +: 8.750000 0.000000 8.750000 ( 8.746774) | |
| <<: 9.660000 0.010000 9.670000 ( 9.668061) | |
| interpolation: 8.870000 0.000000 8.870000 ( 8.869000) | |
| single quote | |
| assignment: 1.570000 0.000000 1.570000 ( 1.570190) | |
| +: 8.580000 0.000000 8.580000 ( 8.581263) | |
| <<: 9.510000 0.000000 9.510000 ( 9.504430) |
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| $ ruby strings.rb [1.9.2-p290] | |
| user system total real | |
| double quote | |
| assignment: 1.170000 0.010000 1.180000 ( 1.175129) | |
| +: 3.820000 0.000000 3.820000 ( 3.816076) | |
| <<: 3.530000 0.000000 3.530000 ( 3.533197) | |
| interpolation: 3.910000 0.010000 3.920000 ( 3.909262) | |
| single quote | |
| assignment: 1.190000 0.000000 1.190000 ( 1.188267) | |
| +: 3.820000 0.000000 3.820000 ( 3.823054) | |
| <<: 3.550000 0.000000 3.550000 ( 3.546011) |
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| $ ruby strings.rb [1.9.3-p0] | |
| user system total real | |
| double quote | |
| assignment: 1.160000 0.000000 1.160000 ( 1.157568) | |
| +: 3.810000 0.010000 3.820000 ( 3.808079) | |
| <<: 3.520000 0.000000 3.520000 ( 3.527592) | |
| interpolation: 3.600000 0.000000 3.600000 ( 3.598699) | |
| single quote | |
| assignment: 1.170000 0.000000 1.170000 ( 1.168748) | |
| +: 3.810000 0.000000 3.810000 ( 3.807643) | |
| <<: 3.520000 0.000000 3.520000 ( 3.527748) |
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| $ jruby --1.8 strings.rb [jruby-1.6.6] | |
| user system total real | |
| double quote | |
| assignment: 0.641000 0.000000 0.641000 ( 0.612000) | |
| +: 3.246000 0.000000 3.246000 ( 3.246000) | |
| <<: 3.626000 0.000000 3.626000 ( 3.626000) | |
| interpolation: 3.634000 0.000000 3.634000 ( 3.634000) | |
| single quote | |
| assignment: 0.453000 0.000000 0.453000 ( 0.453000) | |
| +: 3.481000 0.000000 3.481000 ( 3.481000) | |
| <<: 3.952000 0.000000 3.952000 ( 3.952000) |
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| $ jruby --1.9 strings.rb [jruby-1.6.6] | |
| user system total real | |
| double quote | |
| assignment: 0.650000 0.000000 0.650000 ( 0.650000) | |
| +: 3.315000 0.000000 3.315000 ( 3.315000) | |
| <<: 3.745000 0.000000 3.745000 ( 3.745000) | |
| interpolation: 3.984000 0.000000 3.984000 ( 3.984000) | |
| single quote | |
| assignment: 0.673000 0.000000 0.673000 ( 0.673000) | |
| +: 3.668000 0.000000 3.668000 ( 3.668000) | |
| <<: 3.771000 0.000000 3.771000 ( 3.771000) |
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| $ jruby --1.8 strings.rb [jruby-1.7.0-dev] | |
| user system total real | |
| double quote | |
| assignment: 0.654000 0.000000 0.654000 ( 0.633000) | |
| +: 2.482000 0.000000 2.482000 ( 2.482000) | |
| <<: 2.725000 0.000000 2.725000 ( 2.725000) | |
| interpolation: 2.878000 0.000000 2.878000 ( 2.878000) | |
| single quote | |
| assignment: 0.438000 0.000000 0.438000 ( 0.438000) | |
| +: 2.618000 0.000000 2.618000 ( 2.618000) | |
| <<: 2.683000 0.000000 2.683000 ( 2.683000) |
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| $ jruby --1.9 strings.rb [jruby-1.7.0-dev] | |
| user system total real | |
| double quote | |
| assignment: 0.598000 0.000000 0.598000 ( 0.598000) | |
| +: 2.662000 0.000000 2.662000 ( 2.662000) | |
| <<: 2.998000 0.000000 2.998000 ( 2.999000) | |
| interpolation: 3.354000 0.000000 3.354000 ( 3.353000) | |
| single quote | |
| assignment: 0.691000 0.000000 0.691000 ( 0.691000) | |
| +: 2.885000 0.000000 2.885000 ( 2.885000) | |
| <<: 2.942000 0.000000 2.942000 ( 2.943000) |
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| $ rbx -X18 strings.rb [rbx-2.0.0-dev] | |
| user system total real | |
| double quote | |
| assignment: 0.938289 0.001547 0.939836 ( 0.936368) | |
| +: 17.999834 0.015982 18.015816 ( 17.800602) | |
| <<: 6.961730 0.002337 6.964067 ( 6.931812) | |
| interpolation: 3.436320 0.001012 3.437332 ( 3.434079) | |
| single quote | |
| assignment: 0.663528 0.000734 0.664262 ( 0.661843) | |
| +: 16.606219 0.002503 16.608722 ( 16.602140) | |
| <<: 6.676738 0.001487 6.678225 ( 6.646201) |
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| $ rbx -X19 strings.rb [rbx-2.0.0-dev] | |
| user system total real | |
| double quote | |
| assignment: 1.121872 0.005459 1.127331 ( 1.014410) | |
| +: 28.878727 0.007471 28.886198 ( 28.631753) | |
| <<: 14.368631 0.004824 14.373455 ( 14.334715) | |
| interpolation: 3.533245 0.002682 3.535927 ( 3.530677) | |
| single quote | |
| assignment: 0.714519 0.000244 0.714763 ( 0.710089) | |
| +: 28.628334 0.010575 28.638909 ( 28.672013) | |
| <<: 14.553449 0.014743 14.568192 ( 14.529628) |
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| require "benchmark" | |
| Benchmark.bm(14) do |x| | |
| puts "double quote" | |
| x.report("assignment:") { 10_000_000.times{ a = "hey man"} } | |
| x.report("+:") { 10_000_000.times{|i| a = "hey man" + i.to_s} } | |
| x.report("<<:") { 10_000_000.times{|i| a = "hey man" << i.to_s} } | |
| x.report("interpolation:") { 10_000_000.times{|i| a = "hey man #{i}"} } | |
| puts "single quote" | |
| x.report("assignment:") { 10_000_000.times{ a = 'hey man'} } | |
| x.report("+:") { 10_000_000.times{|i| a = 'hey man' + i.to_s} } | |
| x.report("<<:") { 10_000_000.times{|i| a = 'hey man' << i.to_s} } | |
| end |
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