yaole
86 lines
1.8 KiB
Go
86 lines
1.8 KiB
Go
//go:build gmp
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// +build gmp
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package gmp_test
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import (
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"math/big"
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"testing"
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)
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// Make a n digit number
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func nDigitNumberMathBig(digits int64) *big.Int {
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x := big.NewInt(10)
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n := big.NewInt(digits)
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one := big.NewInt(1)
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x.Exp(x, n, nil)
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x.Sub(x, one)
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return x
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}
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func benchmarkMathBigAddN(b *testing.B, digits int64) {
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x := nDigitNumberMathBig(digits)
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y := nDigitNumberMathBig(digits)
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z := big.NewInt(0)
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b.ResetTimer()
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b.StartTimer()
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for i := b.N - 1; i >= 0; i-- {
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z.Add(x, y)
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}
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}
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func BenchmarkMathBigAdd1(b *testing.B) {
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benchmarkMathBigAddN(b, 10)
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}
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func BenchmarkMathBigAdd10(b *testing.B) {
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benchmarkMathBigAddN(b, 10)
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}
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func BenchmarkMathBigAdd100(b *testing.B) {
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benchmarkMathBigAddN(b, 100)
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}
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func BenchmarkMathBigAdd1000(b *testing.B) {
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benchmarkMathBigAddN(b, 1000)
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}
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func BenchmarkMathBigAdd10000(b *testing.B) {
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benchmarkMathBigAddN(b, 10000)
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}
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func BenchmarkMathBigAdd100000(b *testing.B) {
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benchmarkMathBigAddN(b, 100000)
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}
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func BenchmarkMathBigAdd1000000(b *testing.B) {
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benchmarkMathBigAddN(b, 1000000)
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}
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func benchmarkMathBigMulN(b *testing.B, digits int64) {
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x := nDigitNumberMathBig(digits)
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y := nDigitNumberMathBig(digits)
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z := big.NewInt(0)
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b.ResetTimer()
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b.StartTimer()
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for i := b.N - 1; i >= 0; i-- {
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z.Mul(x, y)
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}
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}
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func BenchmarkMathBigMul1(b *testing.B) {
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benchmarkMathBigMulN(b, 10)
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}
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func BenchmarkMathBigMul10(b *testing.B) {
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benchmarkMathBigMulN(b, 10)
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}
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func BenchmarkMathBigMul100(b *testing.B) {
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benchmarkMathBigMulN(b, 100)
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}
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func BenchmarkMathBigMul1000(b *testing.B) {
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benchmarkMathBigMulN(b, 1000)
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}
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func BenchmarkMathBigMul10000(b *testing.B) {
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benchmarkMathBigMulN(b, 10000)
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}
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func BenchmarkMathBigMul100000(b *testing.B) {
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benchmarkMathBigMulN(b, 100000)
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}
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func BenchmarkMathBigMul1000000(b *testing.B) {
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benchmarkMathBigMulN(b, 1000000)
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}
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