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Diffstat (limited to 'vendor/github.com/remyoudompheng/bigfft/README')
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diff --git a/vendor/github.com/remyoudompheng/bigfft/README b/vendor/github.com/remyoudompheng/bigfft/README deleted file mode 100644 index 0fcd39d96..000000000 --- a/vendor/github.com/remyoudompheng/bigfft/README +++ /dev/null @@ -1,54 +0,0 @@ -This library is a toy proof-of-concept implementation of the -well-known Schonhage-Strassen method for multiplying integers. -It is not expected to have a real life usecase outside number -theory computations, nor is it expected to be used in any production -system. - -If you are using it in your project, you may want to carefully -examine the actual requirement or problem you are trying to solve. - -# Comparison with the standard library and GMP - -Benchmarking math/big vs. bigfft - -Number size old ns/op new ns/op delta - 1kb 1599 1640 +2.56% - 10kb 61533 62170 +1.04% - 50kb 833693 831051 -0.32% -100kb 2567995 2693864 +4.90% - 1Mb 105237800 28446400 -72.97% - 5Mb 1272947000 168554600 -86.76% - 10Mb 3834354000 405120200 -89.43% - 20Mb 11514488000 845081600 -92.66% - 50Mb 49199945000 2893950000 -94.12% -100Mb 147599836000 5921594000 -95.99% - -Benchmarking GMP vs bigfft - -Number size GMP ns/op Go ns/op delta - 1kb 536 1500 +179.85% - 10kb 26669 50777 +90.40% - 50kb 252270 658534 +161.04% -100kb 686813 2127534 +209.77% - 1Mb 12100000 22391830 +85.06% - 5Mb 111731843 133550600 +19.53% - 10Mb 212314000 318595800 +50.06% - 20Mb 490196000 671512800 +36.99% - 50Mb 1280000000 2451476000 +91.52% -100Mb 2673000000 5228991000 +95.62% - -Benchmarks were run on a Core 2 Quad Q8200 (2.33GHz). -FFT is enabled when input numbers are over 200kbits. - -Scanning large decimal number from strings. -(math/big [n^2 complexity] vs bigfft [n^1.6 complexity], Core i5-4590) - -Digits old ns/op new ns/op delta -1e3 9995 10876 +8.81% -1e4 175356 243806 +39.03% -1e5 9427422 6780545 -28.08% -1e6 1776707489 144867502 -91.85% -2e6 6865499995 346540778 -94.95% -5e6 42641034189 1069878799 -97.49% -10e6 151975273589 2693328580 -98.23% - |