1# benchmark2.cpp results 2 3## VS 2017 15.9.7 64 bit (cl.exe 19.16, /EHsc /std:c++17) 4 5### /Od 6 7#### Compile time 8 9``` 10 variant2 (-DONLY_V2): 1403 ms 11boost::variant (-DONLY_BV): 2972 ms 12 std::variant (-DONLY_SV): 1057 ms 13``` 14 15#### Run time 16 17``` 18N=100000000: 19 prefix: 7016 ms; S=416666583333336 20 variant2: 24723 ms; S=416666583333336 21boost::variant: 60438 ms; S=416666583333336 22 std::variant: 20707 ms; S=416666583333336 23``` 24 25### /O2 /DNDEBUG 26 27#### Compile time 28 29``` 30 variant2 (-DONLY_V2): 1778 ms 31boost::variant (-DONLY_BV): 3252 ms 32 std::variant (-DONLY_SV): 1372 ms 33``` 34 35#### Run time 36 37``` 38N=100000000: 39 prefix: 803 ms; S=416666583333336 40 variant2: 2124 ms; S=416666583333336 41boost::variant: 6191 ms; S=416666583333336 42 std::variant: 2193 ms; S=416666583333336 43``` 44 45## g++ 7.4.0 -std=c++17 (Cygwin 64 bit) 46 47### -O0 48 49#### Compile time 50 51``` 52 variant2 (-DONLY_V2): 1739 ms 53boost::variant (-DONLY_BV): 3113 ms 54 std::variant (-DONLY_SV): 1719 ms 55``` 56 57#### Run time 58 59``` 60N=100000000: 61 prefix: 5163 ms; S=416666583333336 62 variant2: 20628 ms; S=416666583333336 63boost::variant: 43308 ms; S=416666583333336 64 std::variant: 42375 ms; S=416666583333336 65``` 66 67### -O1 68 69#### Compile time 70 71``` 72 variant2 (-DONLY_V2): 1484 ms 73boost::variant (-DONLY_BV): 2947 ms 74 std::variant (-DONLY_SV): 1448 ms 75``` 76 77#### Run time 78 79``` 80N=100000000: 81 prefix: 781 ms; S=416666583333336 82 variant2: 1992 ms; S=416666583333336 83boost::variant: 2249 ms; S=416666583333336 84 std::variant: 4843 ms; S=416666583333336 85``` 86 87### -O2 -DNDEBUG 88 89#### Compile time 90 91``` 92 variant2 (-DONLY_V2): 1547 ms 93boost::variant (-DONLY_BV): 2999 ms 94 std::variant (-DONLY_SV): 1528 ms 95``` 96 97#### Run time 98 99``` 100N=100000000: 101 prefix: 793 ms; S=416666583333336 102 variant2: 1686 ms; S=416666583333336 103boost::variant: 1833 ms; S=416666583333336 104 std::variant: 4340 ms; S=416666583333336 105``` 106 107### -O3 -DNDEBUG 108 109#### Compile time 110 111``` 112 variant2 (-DONLY_V2): 1595 ms 113boost::variant (-DONLY_BV): 3084 ms 114 std::variant (-DONLY_SV): 1620 ms 115``` 116 117#### Run time 118 119``` 120N=100000000: 121 prefix: 853 ms; S=416666583333336 122 variant2: 1681 ms; S=416666583333336 123boost::variant: 1773 ms; S=416666583333336 124 std::variant: 3989 ms; S=416666583333336 125``` 126 127## clang++ 5.0.1 -std=c++17 -stdlib=libc++ (Cygwin 64 bit) 128 129### -O0 130 131#### Compile time 132 133``` 134 variant2 (-DONLY_V2): 1578 ms 135boost::variant (-DONLY_BV): 2623 ms 136 std::variant (-DONLY_SV): 1508 ms 137``` 138 139#### Run time 140 141``` 142N=100000000: 143 prefix: 4447 ms; S=416666583333336 144 variant2: 16016 ms; S=416666583333336 145boost::variant: 42365 ms; S=416666583333336 146 std::variant: 17817 ms; S=416666583333336 147``` 148 149### -O1 150 151#### Compile time 152 153``` 154 variant2 (-DONLY_V2): 1841 ms 155boost::variant (-DONLY_BV): 2919 ms 156 std::variant (-DONLY_SV): 1776 ms 157``` 158 159#### Run time 160 161``` 162N=100000000: 163 prefix: 1390 ms; S=416666583333336 164 variant2: 5397 ms; S=416666583333336 165boost::variant: 23234 ms; S=416666583333336 166 std::variant: 2807 ms; S=416666583333336 167``` 168 169### -O2 -DNDEBUG 170 171#### Compile time 172 173``` 174 variant2 (-DONLY_V2): 1766 ms 175boost::variant (-DONLY_BV): 2817 ms 176 std::variant (-DONLY_SV): 1718 ms 177``` 178 179#### Run time 180 181``` 182N=100000000: 183 prefix: 604 ms; S=416666583333336 184 variant2: 1625 ms; S=416666583333336 185boost::variant: 2735 ms; S=416666583333336 186 std::variant: 2664 ms; S=416666583333336 187``` 188 189### -O3 -DNDEBUG 190 191#### Compile time 192 193``` 194 variant2 (-DONLY_V2): 1720 ms 195boost::variant (-DONLY_BV): 2806 ms 196 std::variant (-DONLY_SV): 1737 ms 197``` 198 199#### Run time 200 201``` 202N=100000000: 203 prefix: 603 ms; S=416666583333336 204 variant2: 1608 ms; S=416666583333336 205boost::variant: 2696 ms; S=416666583333336 206 std::variant: 2668 ms; S=416666583333336 207``` 208