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by Daniel Berger.
Original Post: Better speed with VC++ 8
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Daniel Berger
Testing 1,2,3...
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I'm seeing about a 10-15% speedup on average by using the latest compiler. Draw your own conclusions:
user system total real
Array[] 0.891000 0.010000 0.901000 ( 1.011000)
Array.new(int) 0.901000 0.010000 0.911000 ( 0.941000)
Array.new(int, obj) 1.012000 0.000000 1.012000 ( 1.102000)
Array.new(array) 1.001000 0.000000 1.001000 ( 1.232000)
Array.new(size){ block } 1.302000 0.000000 1.302000 ( 1.772000)
Array#& 2.804000 0.040000 2.844000 ( 3.135000)
Array#* (int) 1.352000 0.060000 1.412000 ( 1.652000)
Array#* (join) 4.346000 0.120000 4.466000 ( 4.827000)
Array#- 2.955000 0.080000 3.035000 ( 3.455000)
Array#<< 0.350000 0.010000 0.360000 ( 0.400000)
Array#<=> 0.531000 0.000000 0.531000 ( 0.591000)
Array#== 0.641000 0.000000 0.641000 ( 0.691000)
Array#[] 0.200000 0.000000 0.200000 ( 0.210000)
Array#[]= 0.210000 0.000000 0.210000 ( 0.231000)
Array#| 2.985000 0.080000 3.065000 ( 3.525000)
Array#assoc 0.330000 0.000000 0.330000 ( 0.350000)
Array#at 0.200000 0.000000 0.200000 ( 0.241000)
Array#clear 0.181000 0.000000 0.181000 ( 0.200000)
Array#collect 1.181000 0.060000 1.241000 ( 1.312000)
Array#collect! 0.741000 0.000000 0.741000 ( 0.791000)
Array#compact 0.631000 0.030000 0.661000 ( 0.771000)
Array#compact! 0.201000 0.000000 0.201000 ( 0.200000)
Array#concat 2.183000 1.332000 3.515000 ( 3.936000)
Array#delete(obj) 0.721000 0.000000 0.721000 ( 0.761000)
Array#delete(obj){ block } 1.101000 0.000000 1.101000 ( 1.232000)
Array#delete_at 0.201000 0.000000 0.201000 ( 0.220000)
Array#delete_if 0.951000 0.000000 0.951000 ( 1.051000)
Array#each 0.711000 0.000000 0.711000 ( 0.752000)
Array#each_index 0.841000 0.000000 0.841000 ( 0.881000)
Array#empty? 0.160000 0.000000 0.160000 ( 0.180000)
Array#eql? 0.381000 0.000000 0.381000 ( 0.441000)
Array#fetch(index) 0.190000 0.000000 0.190000 ( 0.230000)
Array#fetch(index, default) 0.261000 0.000000 0.261000 ( 0.280000)
Array#fetch(index){ block } 0.470000 0.000000 0.470000 ( 0.491000)
Array#fill(obj) 0.291000 0.000000 0.291000 ( 0.321000)
Array#fill(obj, start) 0.340000 0.000000 0.340000 ( 0.390000)
Array#fill(obj, start, length) 0.271000 0.000000 0.271000 ( 0.301000)
Array#fill(obj, range) 0.450000 0.000000 0.450000 ( 0.500000)
Array#fill{ block } 0.761000 0.000000 0.761000 ( 0.811000)
Array#fill(start){ block } 0.691000 0.000000 0.691000 ( 0.761000)
Array#fill(start, length){ block } 0.451000 0.000000 0.451000 ( 0.491000)
Array#fill(range){ block } 0.661000 0.000000 0.661000 ( 0.731000)
Array#first 0.170000 0.000000 0.170000 ( 0.191000)
Array#flatten 3.195000 0.050000 3.245000 ( 3.605000)
Array#flatten! 1.602000 0.000000 1.602000 ( 1.702000)
Array#include? 1.032000 0.000000 1.032000 ( 1.102000)
Array#index 1.472000 0.000000 1.472000 ( 1.632000)
Array#insert 303.947000 0.711000 304.658000 (344.549000)
Array#join 4.076000 0.081000 4.157000 ( 4.516000)
Array#last 0.180000 0.000000 0.180000 ( 0.190000)
Array#length 0.150000 0.000000 0.150000 ( 0.181000)
Array#nitems 0.180000 0.000000 0.180000 ( 0.180000)
Array#pack 0.822000 0.020000 0.842000 ( 0.951000)
Array#pop 0.170000 0.000000 0.170000 ( 0.170000)
Array#push 0.911000 0.030000 0.941000 ( 1.022000)
Array#rassoc 0.401000 0.000000 0.401000 ( 0.420000)
Array#reject 1.111000 0.000000 1.111000 ( 1.172000)
Array#reject! 0.621000 0.000000 0.621000 ( 0.741000)
Array#replace 1.452000 0.000000 1.452000 ( 1.522000)
Array#reverse 0.451000 0.000000 0.451000 ( 0.491000)
Array#reverse! 0.190000 0.000000 0.190000 ( 0.200000)
Array#reverse_each 0.651000 0.000000 0.651000 ( 0.731000)
Array#rindex 0.210000 0.000000 0.210000 ( 0.231000)
Array#shift 0.171000 0.000000 0.171000 ( 0.170000)
Array#slice(int) 0.210000 0.000000 0.210000 ( 0.210000)
Array#slice(start, length) 0.240000 0.000000 0.240000 ( 0.261000)
Array#slice(range) 0.331000 0.000000 0.331000 ( 0.350000)
Array#slice!(int)! 0.200000 0.000000 0.200000 ( 0.220000)
Array#slice!(start, length) 1.022000 0.010000 1.032000 ( 1.102000)
Array#slice!(range) 0.580000 0.020000 0.600000 ( 0.661000)
Array#sort 0.711000 0.000000 0.711000 ( 0.791000)
Array#sort{ block } 5.008000 0.040000 5.048000 ( 6.359000)
Array#sort! 0.230000 0.000000 0.230000 ( 0.260000)
Array#sort!{ block } 3.165000 0.040000 3.205000 ( 3.425000)
Array#to_a 0.180000 0.000000 0.180000 ( 0.191000)
Array#to_ary 0.160000 0.000000 0.160000 ( 0.180000)
Array#to_s 3.956000 0.090000 4.046000 ( 4.536000)
Array#transpose 1.892000 0.040000 1.932000 ( 2.073000)
Array#uniq 2.304000 0.040000 2.344000 ( 2.604000)
Array#uniq! 1.602000 0.070000 1.672000 ( 1.823000)
Array#unshift 0.170000 0.000000 0.170000 ( 0.200000)
Array#values_at(int) 0.461000 0.010000 0.471000 ( 0.511000)
Array#values_at(range) 2.484000 0.030000 2.514000 ( 2.763000)
user system total real
Array[] 0.771000 0.000000 0.771000 ( 0.822000)
Array.new(int) 0.751000 0.000000 0.751000 ( 0.791000)
Array.new(int, obj) 0.791000 0.000000 0.791000 ( 0.851000)
Array.new(array) 0.891000 0.010000 0.901000 ( 0.961000)
Array.new(size){ block } 1.052000 0.000000 1.052000 ( 1.192000)
Array#& 2.233000 0.040000 2.273000 ( 2.604000)
Array#* (int) 0.951000 0.030000 0.981000 ( 1.071000)
Array#* (join) 2.654000 0.050000 2.704000 ( 3.095000)
Array#- 2.474000 0.120000 2.594000 ( 2.974000)
Array#<< 0.310000 0.000000 0.310000 ( 0.390000)
Array#<=> 0.471000 0.000000 0.471000 ( 0.501000)
Array#== 0.561000 0.000000 0.561000 ( 0.601000)
Array#[] 0.180000 0.000000 0.180000 ( 0.210000)
Array#[]= 0.230000 0.000000 0.230000 ( 0.231000)
Array#| 2.323000 0.070000 2.393000 ( 2.713000)
Array#assoc 0.391000 0.000000 0.391000 ( 0.401000)
Array#at 0.200000 0.000000 0.200000 ( 0.210000)
Array#clear 0.181000 0.000000 0.181000 ( 0.191000)
Array#collect 1.021000 0.000000 1.021000 ( 1.091000)
Array#collect! 0.621000 0.000000 0.621000 ( 0.681000)
Array#compact 0.641000 0.000000 0.641000 ( 0.691000)
Array#compact! 0.190000 0.000000 0.190000 ( 0.190000)
Array#concat 2.113000 1.362000 3.475000 ( 3.876000)
Array#delete(obj) 0.611000 0.000000 0.611000 ( 0.661000)
Array#delete(obj){ block } 0.631000 0.000000 0.631000 ( 0.911000)
Array#delete_at 0.190000 0.000000 0.190000 ( 0.240000)
Array#delete_if 1.022000 0.000000 1.022000 ( 1.232000)
Array#each 0.661000 0.000000 0.661000 ( 0.661000)
Array#each_index 0.721000 0.000000 0.721000 ( 1.232000)
Array#empty? 0.150000 0.000000 0.150000 ( 0.190000)
Array#eql? 0.290000 0.000000 0.290000 ( 0.371000)
Array#fetch(index) 0.201000 0.000000 0.201000 ( 0.250000)
Array#fetch(index, default) 0.280000 0.000000 0.280000 ( 0.331000)
Array#fetch(index){ block } 0.331000 0.000000 0.331000 ( 0.410000)
Array#fill(obj) 0.270000 0.000000 0.270000 ( 0.421000)
Array#fill(obj, start) 0.280000 0.000000 0.280000 ( 0.320000)
Array#fill(obj, start, length) 0.321000 0.000000 0.321000 ( 0.351000)
Array#fill(obj, range) 0.330000 0.000000 0.330000 ( 0.410000)
Array#fill{ block } 0.711000 0.000000 0.711000 ( 0.992000)
Array#fill(start){ block } 0.621000 0.000000 0.621000 ( 0.661000)
Array#fill(start, length){ block } 0.391000 0.000000 0.391000 ( 0.460000)
Array#fill(range){ block } 0.581000 0.000000 0.581000 ( 0.902000)
Array#first 0.200000 0.000000 0.200000 ( 0.250000)
Array#flatten 2.874000 0.010000 2.884000 ( 5.348000)
Array#flatten! 1.222000 0.000000 1.222000 ( 1.321000)
Array#include? 0.741000 0.000000 0.741000 ( 0.902000)
Array#index 1.262000 0.000000 1.262000 ( 1.422000)
Array#insert 291.589000 0.831000 292.420000 (350.266000)
Array#join 3.054000 0.080000 3.134000 ( 4.256000)
Array#last 0.181000 0.000000 0.181000 ( 0.191000)
Array#length 0.170000 0.000000 0.170000 ( 0.180000)
Array#nitems 0.160000 0.000000 0.160000 ( 0.190000)
Array#pack 1.152000 0.050000 1.202000 ( 1.292000)
Array#pop 0.190000 0.000000 0.190000 ( 0.190000)
Array#push 0.501000 0.030000 0.531000 ( 0.581000)
Array#rassoc 0.310000 0.000000 0.310000 ( 0.341000)
Array#reject 1.082000 0.020000 1.102000 ( 1.251000)
Array#reject! 0.490000 0.000000 0.490000 ( 1.032000)
Array#replace 0.681000 0.000000 0.681000 ( 0.761000)
Array#reverse 0.401000 0.000000 0.401000 ( 0.461000)
Array#reverse! 0.170000 0.000000 0.170000 ( 0.200000)
Array#reverse_each 0.541000 0.000000 0.541000 ( 0.591000)
Array#rindex 0.200000 0.000000 0.200000 ( 0.210000)
Array#shift 0.171000 0.000000 0.171000 ( 0.190000)
Array#slice(int) 0.200000 0.000000 0.200000 ( 0.211000)
Array#slice(start, length) 0.671000 0.000000 0.671000 ( 0.731000)
Array#slice(range) 0.280000 0.000000 0.280000 ( 0.300000)
Array#slice!(int)! 0.231000 0.000000 0.231000 ( 0.250000)
Array#slice!(start, length) 0.480000 0.000000 0.480000 ( 0.511000)
Array#slice!(range) 0.801000 0.010000 0.811000 ( 0.851000)
Array#sort 0.411000 0.030000 0.441000 ( 0.531000)
Array#sort{ block } 4.276000 0.061000 4.337000 ( 4.987000)
Array#sort! 0.220000 0.000000 0.220000 ( 0.251000)
Array#sort!{ block } 2.504000 0.050000 2.554000 ( 2.854000)
Array#to_a 0.190000 0.000000 0.190000 ( 0.190000)
Array#to_ary 0.171000 0.000000 0.171000 ( 0.180000)
Array#to_s 3.284000 0.120000 3.404000 ( 4.497000)
Array#transpose 1.753000 0.070000 1.823000 ( 2.313000)
Array#uniq 2.423000 0.030000 2.453000 ( 2.724000)
Array#uniq! 2.213000 0.070000 2.283000 ( 2.503000)
Array#unshift 0.171000 0.000000 0.171000 ( 0.190000)
Array#values_at(int) 0.691000 0.000000 0.691000 ( 0.792000)
Array#values_at(range) 1.001000 0.040000 1.041000 ( 1.091000)
Read: Better speed with VC++ 8
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