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Ruby hex vs to_i(16) vs sprintf
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| #!/usr/bin/env ruby | |
| require 'benchmark' | |
| Benchmark.bm do |x| | |
| x.report( ".hex 10^4 ") { 10000.times { "ff".hex } } | |
| x.report( ".to_i(16): 10^4 ") { 10000.times { "ff".to_i(16) }} | |
| x.report( "sprintf: 10^4 ") { 10000.times { sprintf "%i\n" % "0xff" }} | |
| x.report( ".hex: 10^5 ") { 100000.times { "ff".hex } } | |
| x.report( ".to_i(16): 10^5 ") { 100000.times { "ff".to_i(16) }} | |
| x.report( "sprintf: 10^5 ") { 100000.times { sprintf "%i\n" % "0xff" }} | |
| x.report( ".hex: 10^6 ") { 1000000.times { "ff".hex } } | |
| x.report( ".to_i(16): 10^6 ") { 1000000.times { "ff".to_i(16) }} | |
| x.report( "sprintf: 10^6 ") { 1000000.times { sprintf "%i\n" % "0xff" }} | |
| x.report( ".hex: 10^7 ") { 10000000.times { "ff".hex } } | |
| x.report( ".to_i(16): 10^7 ") { 10000000.times { "ff".to_i(16) }} | |
| x.report( "sprintf: 10^7 ") { 10000000.times { sprintf "%i\n" % "0xff" }} | |
| end |
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| user system total real | |
| .hex 10^4 0.010000 0.000000 0.010000 ( 0.003354) | |
| .to_i(16): 10^4 0.000000 0.000000 0.000000 ( 0.003762) | |
| sprintf: 10^4 0.020000 0.000000 0.020000 ( 0.022379) | |
| .hex: 10^5 0.030000 0.000000 0.030000 ( 0.028870) | |
| .to_i(16): 10^5 0.030000 0.000000 0.030000 ( 0.031195) | |
| sprintf: 10^5 0.210000 0.000000 0.210000 ( 0.212064) | |
| .hex: 10^6 0.300000 0.000000 0.300000 ( 0.291441) | |
| .to_i(16): 10^6 0.320000 0.000000 0.320000 ( 0.324304) | |
| sprintf: 10^6 2.200000 0.010000 2.210000 ( 2.202667) | |
| .hex: 10^7 3.210000 0.000000 3.210000 ( 3.327383) | |
| .to_i(16): 10^7 4.640000 0.020000 4.660000 ( 4.887118) | |
| sprintf: 10^7 29.820000 0.090000 29.910000 ( 31.304471) |
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| user system total real | |
| .hex 10^4 0.000000 0.000000 0.000000 ( 0.003637) | |
| .to_i(16): 10^4 0.000000 0.000000 0.000000 ( 0.003048) | |
| sprintf: 10^4 0.030000 0.000000 0.030000 ( 0.023090) | |
| .hex: 10^5 0.030000 0.000000 0.030000 ( 0.029000) | |
| .to_i(16): 10^5 0.030000 0.000000 0.030000 ( 0.029577) | |
| sprintf: 10^5 0.240000 0.010000 0.250000 ( 0.241405) | |
| .hex: 10^6 0.260000 0.000000 0.260000 ( 0.265409) | |
| .to_i(16): 10^6 0.290000 0.000000 0.290000 ( 0.291048) | |
| sprintf: 10^6 2.180000 0.000000 2.180000 ( 2.177367) | |
| .hex: 10^7 2.730000 0.000000 2.730000 ( 2.734876) | |
| .to_i(16): 10^7 2.970000 0.000000 2.970000 ( 2.979812) | |
| sprintf: 10^7 26.560000 0.090000 26.650000 ( 29.873252) |
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| user system total real | |
| .hex 10^4 0.000000 0.000000 0.000000 ( 0.003550) | |
| .to_i(16): 10^4 0.010000 0.000000 0.010000 ( 0.003121) | |
| sprintf: 10^4 0.020000 0.000000 0.020000 ( 0.021431) | |
| .hex: 10^5 0.030000 0.000000 0.030000 ( 0.029200) | |
| .to_i(16): 10^5 0.030000 0.000000 0.030000 ( 0.030162) | |
| sprintf: 10^5 0.210000 0.000000 0.210000 ( 0.209630) | |
| .hex: 10^6 0.290000 0.000000 0.290000 ( 0.292072) | |
| .to_i(16): 10^6 0.310000 0.010000 0.320000 ( 0.310538) | |
| sprintf: 10^6 2.070000 0.000000 2.070000 ( 2.077301) | |
| .hex: 10^7 2.790000 0.000000 2.790000 ( 2.789065) | |
| .to_i(16): 10^7 3.170000 0.010000 3.180000 ( 3.181919) | |
| sprintf: 10^7 22.890000 0.060000 22.950000 ( 23.067154) |
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| user system total real | |
| .hex 10^4 0.000000 0.000000 0.000000 ( 0.004351) | |
| .to_i(16): 10^4 0.010000 0.000000 0.010000 ( 0.003111) | |
| sprintf: 10^4 0.020000 0.000000 0.020000 ( 0.021106) | |
| .hex: 10^5 0.030000 0.000000 0.030000 ( 0.027120) | |
| .to_i(16): 10^5 0.020000 0.000000 0.020000 ( 0.028414) | |
| sprintf: 10^5 0.210000 0.000000 0.210000 ( 0.202262) | |
| .hex: 10^6 0.250000 0.000000 0.250000 ( 0.249064) | |
| .to_i(16): 10^6 0.300000 0.000000 0.300000 ( 0.309073) | |
| sprintf: 10^6 2.010000 0.000000 2.010000 ( 2.005965) | |
| .hex: 10^7 2.570000 0.000000 2.570000 ( 2.573061) | |
| .to_i(16): 10^7 2.930000 0.000000 2.930000 ( 2.939949) | |
| sprintf: 10^7 21.090000 0.040000 21.130000 ( 21.170493) |
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